OVERVIEW OF THE
DEVELOPMENT OF LUCID DREAM RESEARCH IN GERMANY
PAUL THOLEY
Johann Wolfgang
Goethe‑Universit_t
As in other countries there were various
reports of lucid dreams recorded through the centuries by German philosophers,
poets and occultists. But these, as well as the investigations carried out by
serious researchers, were completely ignored by scientists because they were
based on personal experiences (see Schriever, 1935; Moers‑Messmer, 1939).
It wasn't until 1959 at Johann Wolfgang
Goethe University that an effective technique for inducing lucid dreams was
developed and the first systematic investigations involving several subjects
took place. In this article I will discuss the beginnings of this research as
well as its further development. Aside from the purely chronological ordering
of the individual steps of the development of the research, I would also like
to provide a basic outline of the inner connections of the particular areas
within the overall research program. This will require analyzing the
development of individual branches of research abstracted from their actual
chronological order.
In Figure 1 the important areas of lucid
dream research in their chronological and logical contexts are summarized.
Clearly not all individual branches can be listed and many spheres can only be
sketched. Those points which I already published in English will receive only
brief mention. In this connection, I would like to point out that a much
briefer version of this overview appeared in Lucidity Letter last year
(Tholey, 1988c). Unfortunately, only the first part of a more comprehensive
abstract was translated and published at that time and more recent research was
entirely omitted. Thus I would like to speak to some of the research themes not
mentioned at that time and especially highlight two of the more current and
somewhat related focal points of investigation: the different forms of lucidity
and non‑ordinary ego‑experiences.
Epistemological Model of Critical Realism
I
would like to treat it in some detail the critical realistic model given the
fundamental significance of it to the development of our lucid dream research
program and the interpretation and application of our findings (see also
Tholey,

1986b). This model
postulates the distinction between the physical world (physical body and
physical environment) and the phenomenal world (phenomenal body ego and
phenomenal environment). In a waking state, the physical world is represented ‑
more or less accurately ‑by sensory and memory processes in the brain.
This was illustrated in a somewhat simplified way in the example of perception
in my 1986(b) article (p. 45). It was a simplification because I didn't
make a strict distinction between the phenomenal facts and the brain
correlates. In fact, we are inclined to adopt a view of psychophysical
identity, isomorphism or parallelism. This is not a purely philosophical
question, rather, it is a matter of working hypotheses which can be subjected
to empirical testing and are not dependent on exact phenomenal/brain
distinctions (for details see Tholey, 1980a; 1989c).
We most emphatically distinguish
ourselves, however, from naive‑realistic conceptions (e.g., Gibson, 1979)
and from the idealistic and similar radical constructivist conceptions. The
radical constructivists confuse the critical‑phenomenal conception of
the physical world with the physical world itself. The former
is constructed on the basis of perception and thought, and frequently changes;
whereas the latter obeys unchanging natural laws. A naive‑realistic model
has especially negative consequences with respect to research and practice in
the field of lucid dreaming and the related field of out‑of‑body
experiences. It not only hampers research, but for people who misinterpret such
experiences it can have very dangerous consequences, possibly leading to
serious mental disorders.
Just as the perceived world can provide us
with information about physical reality despite the many deceptions and
illusions, the dream world can present us with information about our
psychological reality (the psychological person and his or her psychological
situation) despite symbolic distortions. In general, we take the term
"reality" to mean simply anything that has an effect. Accordingly, we
understand psychological reality to mean the totality of that which can
have an effect on our experience and behavior (see Lewin, 1936). This would
especially include the so‑called unconscious facts which we can
conceptualize as psychological constructs and which can basically be replaced
by physiological concepts at a later time.
Here we are in agreement with Freud that
dreams are the "royal road" to the unconscious. But this is of little
help when, in the orthodox psychoanalytic sense, normal dreams are experienced
with a hazy consciousness and the absence of an ability to act. Or after waking when we report to a biased
psychotherapist about our even more hazy and distorted observations and the
associations connected to them.
In order to gain insight into our
psychological problems and resolve them, it is much more important to interact
with the symbolic world in a way enabled by lucid consciousness and the
consequent greater freedom of action. Just as we can interact with physical
reality in a waking state by means of the sensory‑motor feedback system,
we are capable of taking action in the psychological reality of lucid dreams
due to the reciprocal reactions between the symbolic events and the underlying
psychological processes. These fundamental principles have provided the basic
underpinnings guiding our investigations into lucid dreaming. The results of
the research have shown them to be extremely sound in practice.
But now let's turn to the epistemological
considerations described in the article written for Lucidity Letter in
1986, in which I focused exclusively on the process of perception. I also
emphasized that it was an understanding of the critical realistic model which
first brought me to the idea of developing a method for inducing lucid dreams,
a method I will only briefly describe.
Techniques for Lucid Dream Induction
The Reflection
Technique
When I recognized that the objective and
intersubjective appearing perceptual world was merely a phenomenal world, it
occurred to me to compare this phenomenal waking world with the dream world
through systematic observation. The dream world is, in fact, a phenomenal
world. But, being less dependent on sensory stimulation, it is possible for
events to transpire which are not possible with normal perception in a waking
state. Such unusual events made it possible for me to recognize the dreaming
state.
On the basis of these ideas, I developed
my first technique for inducing lucid dreams in 1959. I called it the
"Reflection Technique." Using this technique, the subject asks him or
herself several times during the course of the day: "Am I awake, or am I
dreaming?". The purpose is to achieve a generally critical attitude
towards one's state of consciousness thus when confronted with unusual
experiences this facilitates recognition of the dreaming state.
After four weeks I had my first lucid
dream. I recognized that I was dreaming because I saw an aunt whom I knew to
have been dead for some time. Since I wasn't at all acquainted with such
phenomena at that time, I was at first fascinated by this new experience.
Later, however, I was seized by a kind of claustrophobic feeling because I
didn't know how or whether I would be able to get out of this dream world. I
finally woke up after staring at a flower in the dream environment until the
flower and the entire surroundings became blurred.
Price and Cohen (1988), who refer to only
one of my articles translated into English, have referred to the reflection
technique as the development of an active attitude. With respect to the early
application of the technique this is correct. A process of active questioning,
however, ultimately gives rise to a passively receptive focus on current
experience which, in turn, makes the posing of critical questions a superfluous
matter. In other words, increased practice helps develop the disposition making
it possible to recognize the dreaming state when triggered by unusual events.
A first important goal in improving the
effectiveness of the reflection technique was finding the appropriate criteria
for recognizing the dreaming state. These criteria make it possible to
spontaneously recognize that one is dreaming: particularities of dreamlike
perception and/or the contradiction between knowledge of events in a waking
state and momentarily experienced dream events. It is also possible to test
whether one is awake or dreaming through a series of physical and mental
activities. For example, the subject turns himself approximately 180 degrees
and then attempts to stand still. In a dream state, as a rule, the body
continues to turn in the same direction or the surroundings begin to revolve in
the opposite direction. However, the subject may hesitate to conduct such a
test in the presence of other people because of the possibility that he/she is
awake. After all most of us shy away from carrying out such unusual activities
in front of potential on‑lookers. Thus mental tests may be preferable.
One of the most effective tests is trying
to remember what has happened during the immediately preceding period of time.
Should one experience bizarre events or a lapse of memory, this may indicate
that one is dreaming. However, this test is useless if the subject wakes up
since it could be a "false awakening". Therefore, turning a light on,
for example, is recommended upon waking up. If the light does not go on, this
may signify a dream state.
We have found countless examples that
suggest the apparent existence of various forms of psychological resistance
which appear to hinder or prematurely end dream lucidity
(Tholey, 1981; 1988b).
For instance during one of my own dreams I
saw houses, trees and other objects all standing upside down. I immediately
thought that I was dreaming. Shortly thereafter it seemed as if I had a pair of
glasses on. It occurred to me that the glasses might have been equipped with
reversing lenses such as those used in psychological experiments dealing with
perception. When I proceeded to take off the glasses I saw my surroundings in a
normal, upright position and I no longer believed I was dreaming. We have
collected hundreds of such examples suggesting that various forms of
psychological resistance apparently seek to hinder lucidity during dreaming.
The Expansion of
the Lucid Dream Induction Technique
The expansion of the original reflection
technique, resulting in the combined technique, was accomplished by
incorporating elements of intention and auto‑suggestion (Tholey, 1982;
1983b). Several researchers outside of our group have shown the effectiveness
of our methods (Bouchet & Ripert, 1986; Levitan, 1989). Relatedly, a new combined technique developed
by Klippstein (1988) should also be mentioned. We have recently attempted to
isolate and investigate the effectiveness of certain factors within the overall
technique (Utecht, 1987; Schlag, in preparation).
To understand the further development of
our induction technique, it is important to point out that the actual clarity
about one's state of consciousness is not by itself a sufficient
criterion for defining a lucid dream. Additional factors also have to be
distinguished. To illustrate this we have listed six different criteria in
Table 1 which are not only relevant to the dream state, but (all other
conditions being equal) also to the waking state and various intermediate
states as well ‑ above all, the "state of imagery."
Consequently, during the further development of our induction technique, we
have placed a high value on practicing as many aspects of lucidity as possible
during the waking state so that they will be ready for application in the dream
state.
Next we want to bring to the readers
attention the second criterion of lucidity, "lucidity about individual
freedom in decision and action". We consider this aspect to be especially
important because it is indispensable for experimentation in lucid dreaming and
because the fulfillment of this criterion completely changes the quality of the
dream. That is with the second aspect the other aspects of lucidity simultaneously
appear, with the exception of the sixth aspect. The sixth aspect of lucidity
can be practiced more easily in a "state of imagery" or in a state of
waking fantasy (see also Malamud, 1979) than in a waking state, which is
usually characterized by a lack of symbolic facts.
Our techniques are somewhat aimed at the
same goal as Charles Tart in his book Waking Up (1986). Tart's book is
based on the teachings of Gurdjeff and assumes the validity of the hypothesis
found in many older spiritual teachings that we are in a kind of psychological
sleep or dream state, even during our waking hours. In metaphorical terms, Tart
says that we have to pull up the weeds (transform unconsciousness into
consciousness) in order to be able to enjoy the flowers. The techniques
described by him are in reference to the waking state and include some which
are similar to our methods (e.g., "self‑observation" and
"self‑remembering").
Our method, however, is more involved. As
noted, we also begin with waking techniques. But, we want to arrive at lucidity
in a dream state as quickly as possible because it is there that we can come
face to face with Tart's "weeds"
__________________________________________________________________
Table 1
From Lucidity to the Evolution of Consciousness
__________________________________________________________________
I. General Aspects of Lucidity
(a) in Dream (b) in Imagery (c) in Waking Life
1. lucidity about
one's state of consciousness (I`m sure that I'm in dream, imagery, or waking
life),
2. lucidity about
individual freedom in decision and action,
3. lucidity of
consciousness (wakefullness in contrast to consciousness disturbances, eg. narrow or cloudy awareness),
4. lucidity of
perception (in a phenomenological sense),
5. lucidity about
one's own person, situation and activity, and
6. lucidity about
what the dream or the imagined world symbolizes, respectively lucidity about
the distortions of defense mechanism in the waking world.
II. Full Lucidity in Sleep
7. lucidity of all
dream characters, and
8. lucidity during
total sleeping state.
III. Evolution of Consciousness
(a) in Dream (b) in Imagery (c) in Waking Life
_________________________________________________________________
in unadulterated
forms. In this way we can directly confront the unconscious and thus free
ourselves from it by a continuous feedback processes. Eventually, we hope to
reach ever higher levels of lucidity in various states of consciousness.
Phenomenological Research on Lucid Dreams
Since, according to the critical realistic
model, the phenomenal (waking or dream) world is the only immediately
accessible world, empirical phenomenology (in the sense of the observation and
description of phenomena) is indispensable for all sciences. The criteria of
objectivity and intersubjectivity, which are often used to characterize a
science, cannot be maintained, in a strict sense, by the critical realists
because they can ultimately be established only through subjective means and
thus one can be fundamentally in error. This can be confirmed by anyone who has
considered himself to be in a waking state, while, in fact, he was dreaming.
This is because the world in a dream state can have the same objective and
intersubjective appearance as in a waking state. The possibility of making such
a fundamental error, however, does not mean that we have to adopt a completely
skeptical position. Conviction does not always lead to objectively and
intersubjectively valid observations, but it does so as a rule. Given that
empirical phenomenology, by definition, does not seek to investigate objective
facts, we demand only intersubjectivity as a criterion for something's
scientific character. Indeed, no single
particular fact can be tested (e.g., that someone has dreamed in color at
a particular time). But more general facts, such as the actual occurrence
of dreaming in color, for example, can be subjected to testing (for details see
Tholey, 1980b).
Experimental phenomenology was the
basic and most often used method in our lucid dream research (for details see
Tholey, 1986a). With this method, the researcher instructs the subjects or
groups of subjects to carry out various specific activities during lucid
dreaming, to observe their effects and record their observations independently
of each other immediately upon awakening. For judging the subjects' memory
capabilities, it is important that they remember not only immediate phenomenal
facts, but also the conclusions and judgements made about these facts (see
Tholey, 1981). An interview technique developed by Reis (1989b), which is
based on a detailed recording of dream experiences, allows for even more
reliable and valid information on dream content than one normally finds with
the usual analytical methods. With the help of phenomenological experiments, it
is possible to test psychological hypotheses about functional dependencies on
phenomenal facts, as well as psychophysiological hypotheses about the
relationships between phenomenal and physiological facts.
Objections to the control of dreams have
recently emerged in the lucid dream literature. To these objections we can only
reply that in our research and clinical work, we have obtained numerous results
through the control of dreams making it possible for us to help many people.
The subjects of pilot studies always participate voluntarily in our
investigations and were always made aware of potential dangers. It is also
understandable that the content of our subjects' lucid dreams would differ
extensively from the reports of spontaneous lucid dreamers. Above all, our
experimental‑phenomenological findings are distinguished from the results
obtained by an analysis of spontaneous lucid dreams by a significantly greater
diversity of experiential possibilities.
Phenomenological
Research in Dream Perception and Cognition
In these experiments we tested a vast
number of hypotheses in the area of perception and cognition during lucid
dreaming which I have lectured on in detail since 1973 and which, in part, are
only to be found in the unpublished reports and dissertations of my students.
From among my German publications, I would highlight my review article of 1981.
The phenomenological experiments on
perception were first modeled on the usual perceptual experiments in the waking
state. We determined if double images, after images and reversible phenomena
appeared during lucid dreams under appropriate conditions. These experiments
also helped in identifying criterion for distinguishing between a waking and a
dream state (see above). We found that all of these phenomena were sometimes,
if not always, observed. Although we can frequently recognize the fact that we
are dreaming, thirty years of research has still not given us an absolutely
reliable test for determining this.
This applies especially to the most effective dream criteria discussed
earlier.
During lucid dreaming we can sometimes
consciously produce perceptual phenomena which differ completely from
perception in a waking state ‑ for example, a panoramic field of vision
extending 360 degrees in both horizontal and vertical directions. In general,
this has occurred only when the dream‑ego was in an asomatic or
disembodied state (see below). We also succeeded in deliberately defying
gravity and slowing down or speeding up time through the use of various
techniques (see Tholey & Utecht, 1989).
In the area of memory, we discovered that
subjects in a lucid dream state could not only remember their waking state but
also their previous dreams. We were able to establish this by comparing the
notes recorded after their earlier dreams. The latter is most assuredly
connected to the problem of state‑specific memory. Long‑term memory
appears to function somewhat better than short‑term memory during lucid
dreaming.
In the sphere of logical thinking, we
found that the dream‑ego was capable of solving double‑digit
multiplication tasks. In addition, some subjects were able to solve problems of
logic which they had unsuccessfully attempted prior to going to sleep. Artistic
creative ability was also shown in varying areas, especially during hypnagogic
dream phases (Lirzer, 1981).
The abilities of other dream characters
were also examined in a way similar to the abilities of the dream‑ego. We
saw that the cognitive and artistic performance of other dream figures equaled
or surpassed that of the dream‑ego, but were less capable of solving
arithmetic problems (Krist, 1981; Tholey, 1985; 1989a).
Phenomenological
Research on Dream Figure Interactions
We devoted a great deal of attention to
the "internal" (emotional and motivational) and "external"
(verbal and behavioral) activities of the dream‑ego during interaction
with other dream figures (Tholey, 1981; 1982; 1984; 1988b). We found that in
general, positive effects on both the dream and waking life of the dreamer
accompanied interactions of a peaceful nature. With regard to this, we mainly
want to make some comments which supplement already published material (see
especially the English article, Tholey,1988b).
We have indicated that some of the dream
characters form sub‑systems of the personality. Even though exact
distinctions are not necessarily possible, these sub‑systems can be of a
more inner‑personal or psycho‑social nature, on the one hand, or of
a more habitual or immediate nature, on the other. We have previously pointed
out that dream characters can be altered through changes in our emotional
attitude and that we can even create other dream characters.
For example, when I am angry or afraid in
a dream, I can blow out the anger or fear through my mouth and thereby create a
dream character which takes on an appearance corresponding to the emotion. An
indirect way of creating dream characters consists in taking certain actions
which trigger strong emotions, such as a guilty conscience. Aggressive actions
in dreams are frequently met with punishment meted out by avenging figures. One
of my own dreams illustrates this:
I knocked down a dream figure in an
enclosed room in order to see if I would be punished. I was seized by the
feeling that I would be confronted with something unpleasant, as had happened
in previous cases. Tense, but calm, I waited a moment. But nothing happened.
Innerly triumphant, I then wanted to leave the room. There, before the door,
stood a huge person with a hood over his head who immediately lunged at me
causing [me] great fear.
Whether such figures appear or not (above
all, in response to socially taboo actions of an aggressive or sexual nature),
varies from subject to subject. This seems to offer proof that the appearance
and possible changes of the other dream characters is dependent on the
dreamer's current emotional state, while this emotional state, however, is
dependent on the habitual attitudes or sub‑systems of the personality.
Learning processes probably play a large
role in communication with other dream characters. Inexperienced lucid dreamers
frequently have difficulty conducting a rational dialogue with other dream figures.
This is because most of these figures play word games involving hidden or
multiple meanings which the dream‑ego can not initially understand. Thus,
it is not surprising that the dream‑ego considers the other dream figures
speech to be pure nonsense ‑ although it can later often be shown to have
a logical meaning.
Phenomenological
Research on the Lucidity of Dream Characters
In addition to the lucidity of the dream‑ego,
the "lucidity" of the other dream characters also plays an important
role in their communication. In order to
avoid misunderstanding, we can never empirically prove whether or not other
dream characters are lucid, only that they speak and behave as if they
were. Elsewhere I have argued that many
dream figures seem to perform with a "consciousness" of what they are
doing (Tholey, 1985; 1989a). Some of our unpublished work on the lucidity of
other dream figures (in the sense just described) includes examples which seem
to indicate that the dream‑ego becomes lucid first. This is followed by the other dream figures
attaining lucidity. On the other hand, we have many examples of reverse order.
We can illustrate this by means of an example in which another dream character
not only becomes lucid before the dream‑ego, he also possesses a higher
degree of lucidity than the dream‑ego later achieves. This abbreviated
form of the dream was reported by a woman and can be found in Reis (1989b):
I dreamed that I had forced myself
through a grey and slimy mass. I didn't know then and I still don't know what
it was. It was unpleasant, but for some reason I had to force myself through it
in order to advance further. Then, in the midst of this grey slime, I came to a
brightly lit place with a person standing in the center. I could see that it
was Mr. Spock, the scientist of the Enterprise (the spaceship of the television
series 'Startrek'). He told me, 'There is no reason to worry because you are
dreaming!' I did not believe him and I asked him what it was that I had just passed through. He answered that I
had just passed through my own brain, or my own mind. I did not believe him,
but he knew so much more than I did and he told me he would jump up and then
remain in mid‑air, just so that I would be able to see that we were part
of a dream. Only after this actually took place was I convinced that I was in a
dream. Then I said that I would never have found out by myself that I was
dreaming. He replied that he knew that and that was why he was there. He also
said that he knew much more than me anyway and that was the way it should be
right then. He explained the meaning of my path in a very plausible manner...
He also explained why it was not necessary to know all this right from the
start and that he only explained it later on so that I wouldn't be afraid
anymore. Anyway, he told me all kinds of things and showed me things that I did
not believe right away. I think it was great to have someone acting in a dream
who knew much more than I did.
The dream character of Mr. Spock may be
characterized as standing for the so‑called internal self‑helper
(ISH) who gives important advice to the dreamer for her dream and daily lives.
Our previous findings suggest that one can arrange a meeting with an ISH by
means of a suitable pre‑sleep suggestion. While lucid dreaming, one can
also arrange meetings with the ISH for a dream in the future.
One often finds an ISH at a place which is
difficult to reach and which can be brightly lit (as in the example with Mr.
Spock), or which is situated high up. There are examples in which one has to
climb to the top of a mountain where one meets an ISH who calls himself a monk,
a guru, or possibly a psychotherapist. Others pass themselves off as guardian
angels or helpful ghosts (for an example, see Tholey 1984). We also have examples
of cases where an ISH knows certain things from the dreamer's past ‑
things which the dreamer himself is not aware of even after waking up, but
which further investigation has shown to be true. Suitable phenomenological
experiments are necessary to achieve further clarification concerning this
important component of lucid dreaming.
In view of the fact that literature in the
field of lucid dreaming almost exclusively refers to the lucidity of the dream
ego, we have, in fact, consciously chosen an example in which the other dream
character becomes lucid earlier than the dream‑ego and is superior to it.
Naturally, there are many other examples in which the reverse is true. In such
cases it is helpful if the dream‑ego tries to convince the other dream
characters that they are in a dream. The quality of the dream can then change
completely and communication between the dream characters can take place which
may lead to much greater insight than is found in the typical lucid dream. For
this reason we consider the "lucidity" of all dream characters (see
Table 2) to be a higher form of lucidity. The verbal, or possibly even
"telepathic", communication no longer takes place on a symbolic, but
rather on a direct level. It has already been possible to confirm this in
preliminary phenomenological experiments.
I have recently (Tholey, 1989a) indicated that it was possible to enter
the body of another dream character with the ego‑core and, in this way,
gain more information than was possible with normal verbal communication.
Techniques for Ending, Prolonging &
Manipulating Lucid Dreams
We can draw a whole series of practical
conclusions about the ending, prolonging and manipulation of lucid dreams from
the results of our phenomenological experiments. Just as a dream can be ended
by fixing a gaze, a lucid dream can be prolonged when it threatens to end by
rapid eye or body movements. As we have already dealt extensively with the
possibilities and limits of manipulating lucid dreams (Tholey, 1988), we will
only briefly comment.
The control of a dream through the dream‑ego's
action in the dream world (similar to the waking‑ego's actions in the
waking world) is not what we mean by manipulation. Rather, we mean intervention
in the dream world which would more likely be considered a supernatural
occurrence in a waking state; e.g., journeys into the past, transformation of
the dream‑ego or dream scenery, etc. Just as lucid dreaming has been
associated with defense mechanisms, so too has dream manipulation been thought
to be a kind of defense mechanism.
Lucidity can, indeed, be used in the sense of a defense mechanism for
escaping problems and conflicts. But, on the other hand, it also offers the
unique opportunity (not possible in normal dreams) to face personal problems
and conflicts, to confront threatening people and situations and even to seek
them out, rather than fleeing from them (see Tholey, 1988b).
Phenomenological Research on Hypnopompic
Phenomena
The fact that lucid dreams can usually be
ended by fixing one's vision on a stationary spot makes it possible to closely
observe the phenomena which appear during the transition to a waking state.
Given that we have already dealt with such phenomena in an earlier article
(1981), we will limit our remarks here to a few observations connected with
bodily experiences which provide some important background for the remainder of
this article.
Only one body was experienced during the
transition from the dreaming to the waking state. Of special interest to us
here was how the transition took place from an upright, standing dream body to
a horizontally lying waking body. This transition is never experienced as the
dream body falling into a horizontal position. Instead, there is a sudden
change of the spatial reference system. This is comparable, while awake, to
when a person wants to go to the door of a completely dark room and suddenly
discovers he is at the opposite side of the room. In this case, it is only the
sudden change of the spatial reference system (constituted by the room) which
is experienced, not the changing of the position of the body through turning
and shifting. In further experiments, we tested to see what happens during the
transition from a dream to a waking state when the dream body is consciously
situated in a way not common during sleeping, e.g., the head and torso bent
forward and almost touching the knees, or the arms and legs extended in a
spread eagle fashion. Neither a straightening of the body in the first case,
nor the drawing in of the limbs in the second case, is actually experienced
during waking. Rather, before waking, the body loses its clear contours and
sometimes its solid character. We have applied the metaphorical term
"cloud‑like ego" to such an occurrence. Upon fully awakening
this "cloud‑like ego" stabilizes into a solid body ego with
definitely defined contours and is experienced as lying in bed.
A dream ego and a waking ego have also
been experienced simultaneously. For example, the dream body gradually faded
out (as in a film), while the waking body became more and more clear. The dream
body slipping into the waking body was also experienced, particularly during
flying dreams. When a cloud‑like ego or a disembodied ego was
experienced, it also frequently slipped into the waking body. Occasionally the
body was not immediately mobile upon waking, a situation which was very
unpleasant for inexperienced lucid dreamers. Practiced dreamers, on the other
hand, use this condition to return to a lucid dream state (see Tholey, 1989c).
Hypnagogic Techniques for Inducing Lucid Dreams
and OBEs
The above mentioned hypnopompic experiences
were used to develop hypnagogic induction techniques which were then employed
in an effort to reverse the above sequence.
This sometimes occurs as quickly as with the reversing of a reversible
figure. We have already outlined other hypnagogic techniques in some of our
earlier articles (Tholey, 1982; 1983a) and later described them in more detail
and illustrated them with suitable examples (Tholey, 1989c). In many respects,
I personally consider the hypnagogic induction techniques to be more appropriate
for advanced subjects than other techniques because they allow lucid dreams (1)
to be attained at a particular time, (2) can easily be prolonged and (3) can be
resumed after short interruptions.
Finally, only hypnagogic techniques made a
24‑hour period of lucidity possible including the total sleeping state
(see Table 2 in Section 8). Indeed, only a few people have succeeded in
accomplishing this in our experiments. I have personally twice experienced 24
hours of lucidity with approximately a five‑hour period spent in a total
sleeping state. EMG measurements showed that my muscular system was completely
relaxed during this time. Upon awakening I showed no signs of either physical
or mental fatigue. A feedback relationship seems to exist between sleeping
state lucidity and waking state lucidity.
So‑called OBEs of the most varied
sort frequently arise with the application of hypnagogic techniques. In the
following section we will deal with them in more detail from both the
conceptual and phenomenological points of view.
Phenomenological Research on Non‑ordinary Ego
Experiences
Conceptual
Distinctions
For the description of non‑ordinary
ego‑experiences we want to explain certain terms in more detail
(including some already used), and also introduce some new ones. This is not
easy given that many phenomenological distinctions which are made in the German
language can only be expressed in English by employing metaphorical language.
In addition, many terms are used ambiguously. We are thinking of such terms as
"ego", "I", "me", "self", etc.
Sometimes the term "ego" indicates a part or sub‑system of the
personality (e.g., in psychoanalysis). By contrast, we attach a
phenomenological meaning to this term, as well as the others, in the following
discussion.
By the expression "total self"
we mean the phenomenal "body‑soul unity" of a subject which
comprehends the subject's phenomenal body (in our terminology, the body‑ego)
as well as mental facts (in a narrow sense) ‑ above all, the emotions and
motivations of the subject. These mental facts frequently appear to be bound up
with the body in a fuzzy way as a kind of vessel. They can also transcend the phenomenal
body. One thinks, for example, of love or hate with their characteristic
connections to other subjects.
There is a particular point within the
total‑self, however, which is sometimes referred to as the "center
of the self", "center of consciousness", or "center of the
ego." "Ego in a narrower sense" or something similar is also
used (for details see Kohler, 1938, p. 188) Due to the ambiguity of these
terms, we prefer the expression "ego‑core", in accordance with
the German term "Ichkern". The ego‑core is less an extended
part of the phenomenal field than it is a place or point in the phenomenal
world determined by its position and functions. Let's first consider its
position in the usual waking condition.
This point can be localized surprisingly
well during normal observing or thinking. It is located within the phenomenal
body, namely in the frontal area of the phenomenal head, a short distance
behind the bridge of the nose. Many authors claim that the ego‑core (or
whatever term they prefer for this concept) is located behind the eyes. But in
the pheonomenological sense this is wrong because in the phenomenal world we
only see by means of a single eye. (The physiologist Hering had described it as
the "cycoplean eye" in the 19th century.) This eye includes the
frontal area of the phenomenal head. Based on that, we can also say that the
ego‑core is located behind the center of this cyclopean eye. To avoid any
misunderstanding, it should be emphasized that this localization of the ego‑core
only concerns the phenomenal head, not the physical head of the physical
organism. Beyond that, the ego‑core should not be confused with either a
fictitious homunculus (which suggests information), or with an idealistic
epistemological subject which creates or constructs the world. The terms
"homunculus" and "epistemological ego" are metaphysical
concepts which have no meaning from the
standpoint of critical realism (see earlier discussion). The ego‑core can
experience phenomenal objects and participate in phenomenal events, above all
through visual perception (in a phenomenological sense), imagination, memory
and thought. As a rule, the ego‑core is also the phenomenal origin of
voluntary activities, including voluntarily focusing attention.
We would consider all experiences which
deviate from the described phenomenal facts to be non‑ordinary ego‑experiences.
In such situations, for example, the ego‑core can change its position in
the phenomenal body or leave the phenomenal body (as with so‑called
OBEs), slip into other phenomenal bodies, duplicate itself, or completely
disappear. In addition, the described functions of the ego‑core can
distribute themselves in various places. There are so many non‑usual ego‑experiences
that we can only consider a few of them.
During lucid dreaming, it is possible to
experience one's own body or the body‑ego in extremely diverse ways ‑
especially OBEs. We consider OBEs to be experiences during which a second body
or a disembodied ego (in our terminology: the ego‑point) leaves the first
(experienced as physical) phenomenal body (Tholey, 1966c). The first body is
frequently experienced as immobile or rigid; the second as mobile. As a rule,
the ego‑core is to be found in the latter. The second body can have the
same distinct contours as the first, or it can be a "cloud‑like
body." The second body can also
usually pass through solid objects, such as walls. In rarer cases, the second
body is tied to the first body by a kind of cord. What we have described here
is interpreted differently and described in other terms by occultist
literature. Table 2 shows a rough outline of the differences between the
anthroposophical concepts of Rudolf Steiner and our own.
_______________________________________________________
Table
2
Anthroposophical Versus Critical Realistic Concepts
______________________________________________________
Anthroposophical Concepts Critical
Realistic Concepts
1. the physical body 1. the (experienced as body
physical)
phenomenal
2. the astral body 2. the subtle image of first body
3. the mental body 3. the cloud‑like body
4. the ego 4. the ego‑core or the ego‑point
_______________________________________________________
Naturally, there is also a physical body
or organism within the framework of critical realism. It isn't, however,
immediately experienced. In occultist literature, the cord between the first
and second bodies is also called the silver cord; its destruction is supposed
to lead to death (see e.g., Fox 1962).
Research on OBEs
Most investigations of non‑ordinary
ego‑experiences refer to OBEs. We have already pointed out the hypnagogic
techniques which were used most of the time in our OBE induction experiments.
During lucid dreams we can also induce OBEs in various ways (for details see
Tholey, 1989c). Finally, we have also used various mirror techniques for the
induction of OBEs which are more or less patterned after magical practices.
[Editors Note: More on these in the discussion between Tholey and LaBerge to
appear in the June, 1990 issue of Lucidity Letter.] The first successful investigation of a
mirror technique in our research at Frankfurt University was by Stich (1983;
1989). A method I developed involving two mirrors has been described by Nossack
(1989).
An important goal of our phenomenal
experiments was to determine whether the same functional dependencies between
phenomenal facts are to be found in an OBE state and in a lucid dream state.
Aside from the beginning phase directly following the induction of these states
of consciousness, we found no substantial differences. In particular, we tried
to find techniques for prolonging, manipulating and ending OBEs which were
similar to those used during lucid dreams.
Interestingly enough, it was possible for
a subject (as an ego‑point) to end a dream by staring at his or her own
(experienced as physical) phenomenal body still lying in bed (Stich, 1983).
This body would begin to become blurred in the same way as a particular point
in the dream scenery of a lucid dream. With regard to manipulation, it was
possible for practiced subjects to arbitrarily give the second body (in
occultist terminology: the astral body) first a solid quality and then a subtle
quality. In this way, the subject could pass through walls at will. The so‑called
astral body could also be transformed into animals and plants, among other
things. The so‑called silver cord could be cut (without harmful results),
although this was a fairly rare event (see Tholey, 1989c). All of the findings
of our phenomenological experiments (especially the blurring of the seemingly
physical body and the arbitrary transformation processes of the second body)
indicate that OBEs are merely a particular form of lucid dreams, with the
possible exception of OBEs occurring during a waking state (e.g., during the
practicing of certain sports ‑ see Tholey, 1989c).
And now a final important observation in
this area, which was also described by Schriever (1935) vis‑_‑vis
lucid dreaming. If the ego‑core is
actually a pure point of view from which one's own body can be observed, it is
also true that particular exertions and pain in this body can be felt as
neutral events without affecting the ego‑core. Through practice, some
people are able to transfer this ability to a waking state in which the ego‑core
is found in the phenomenal head, i.e., not outside the body. It might even be
possible for these people to be operated on without anaesthesia.
Entering the Body
of Other Dream Characters with the Ego‑core
The previously mentioned mirror techniques
can be used as a helpful preliminary exercise for entering the body of another
dream character with the ego‑core. In the hypnagogic state, however, one
can use imagined mirrors in order to enter one's own imagine in the mirror
(Muldoon & Carrington, 1974; Hillman, 1985). In this state, the "image‑ego‑point
technique" for inducing lucid dreams (Tholey, 1983a, p. 85) can also be
used for entering the body of a dream character.
When entering the body of a particular
dream character with the ego‑core, it is advantageous to look directly at
the dream character. The ego‑core is often very quickly transported along
the line of sight towards and into the body of the dream character. Naturally
there are still several phenomenological experiments to be carried out to
clarify the effectiveness of particular techniques for this process.
We would like to illustrate this process
with two examples. In the first, the subject (an artist) used the above
mentioned "image‑ego‑point technique" for inducing a
lucid dream in a hypnagogic state. Even though he had never experienced a lucid
dream before, he had the following experience the first night after being
instructed in this technique:
I paid attention to visual phenomena
while falling asleep. I got to the point where I could see a complete scene
even though I was still lying in bed as a spectator, not as an actor. Several
Indians were kind of hanging out on the beach. Among them was a friendly boy
whom I selected in order to enter his body. I quickly succeeded in 'riding on'
my line of sight to him. Immediately afterwards I started to see the beach
through the boy's eyes; I heard the ocean waves beating against the shore
through his ears; I moved with the boy's body. Shortly afterwards, my ego left
the boy's body, shot up and then floated above the beach. I thought to myself:
'It did not quite work out yet.' Then my ego slipped into the body lying in
bed.
Another example is provided by a student
who had already had many experiences with the mentioned mirror technique. His
ego‑core entered the bodies of several other dream characters, but he
became lucid only at the end of the dream:
I am dreaming that I am married and
have a daughter (neither of which was actually true). First, I see the kid
playing around and I am very proud of her. Later on, I am lying in bed (person
A = dreamer) with my wife (person B). She tells me that we have to separate. I
am stunned by that. She leaves and my ego enters her (person B) at that moment.
After some time has passed, I (still person B) conclude that I (person A) am
not that bad a person after all and I (person B) decide to return to myself
(person A). I find myself (person A) in bed with a stranger, a man (person C),
and I (person B) get extremely mad and jealous. I (person B) accuse myself
(person A) of being a 'queer son‑of‑a‑bitch'. Then my ego
slips out of person B and into person C, and now, being person C, I explain to
person B why it is alright this way and succeed in convincing B of this.
Finally, all three of us are lying in bed making love. I leave all three of
them at the moment I am no longer sure which one of them I actually am and then
discover that I am sleeping because everything seems so dreamlike. Seeing that,
I explain to them (the three people) that I am dreaming and that they are all
parts of myself. They turn around, looking at me sheepishly and unbelievingly.
Wondering how I manage to talk even though my ego has no body at all. I wake
up.
The dreamer interpreted the dream as a
psychological conflict in which the ego‑core took over the various sub‑systems
of his personality. While this dream obviously symbolized an internal
psychological conflict, we also have examples of psychosocial conflicts being
clarified and resolved by entering the body of another dream character (for a
detailed example, see Tholey, 1988b, pp. 283‑284). Indeed, it is not
always possible to make a strict distinction between these two kinds of
conflicts because of their closely interrelated nature.
Dream Ego
Duplication
The following technique for duplicating
the dream ego was developed by psychotherapist Norbert Sattler. He discovered
that it is possible to not only pass into another dream character over the line
of sight, but that a person can be transported to a different place entirely.
The following example from Sattler explains how the dream ego can be duplicated
at the same time as this transporting takes place.
Standing in front of a high tower
during a lucid dream, I clearly experienced the tower's power. This gave rise
to a desire to look down from it. I accomplished this by gliding in desultory
fashion to the top of the tower along my line of sight. I then looked downwards
and was overcome by a feeling of dizziness. In a similar way as before, I
changed my perspective several times until I seemed to be standing on top of
the tower and at its base at the same time, while simultaneously looking
upwards and downwards. In this way, I experienced the power of the high tower
and the dizziness caused by the long vertical drop in one conflicting moment.
A second method, which I developed, for
dream ego duplication consisted in cutting one's body into right and left
halves (see also the following discussion for the more general method of
severing body parts). The two halves can then complete themselves into two
dream bodies with differing points of view. As a rule, this method can only be
applied successfully by experienced lucid dreamers and the phenomena are
generally of an unstable nature. In this connection, it should be noted that
the dream‑ego, according to Chang (1963), can be "multiplied into
millions and billions to fill the entire cosmos" (our terminology: the
total dream world).
Movement of the Ego‑core
Within the Dream Body
The above mentioned technique for dividing
the dream body into two halves is patterned after a more general technique
developed by Norbert Sattler (see preceding section) for cutting through or
cutting off various parts of the dream body with a knife. With this method,
pain can be felt and resistance can be encountered if the subject hasn't learned
to transform the solid dream body into a subtle body. The ego‑core also
becomes mobile by means of cuts made through the head and can be moved
arbitrarily within the uninjured dream body with further practice. In this way,
it can inspect the entire dream body and internal organs much like the Guided
Affective Imagery (GAI) technique described by Leuner (1978). This could
ultimately be of great significance for the diagnosis and treatment of
psychosomatic illness.
Destruction of the
Dream Ego
If a subject not only severs various parts
of the body, but also tries to completely cut it up into pieces, burn it up or
destroy it by other means, then the dream body as well as the dream ego‑core
disappear. This is similar to the techniques used by shamans (e.g., see
Kalweit, 1984) who are considered by many researchers to be pioneers in
consciousness research. The vanishing of the ego‑core can lead to
different states of consciousness. Relatedly, Dittrich (1985) argues, on the
basis of factor analysis of numerous experiments, that there are only three
main dimensions (independently of pharmacological and psychological causes)
within the various forms of altered states of consciousness: 1. oceanic self
boundlessness,
2. anxious ego
dissolution, and 3. visionary restructuring.
As a rule, only hallucinatory events take
place during a lucid dream. Whether the vanishing of the ego is accompanied by
peak experiences of type 1, or unpleasant, fearful experiences of type 2
depends, above all, on the subject's epistemological point of view and the
emotional attitude flowing from it. Otherwise, we see no decisive difference
between these forms of experience. Those of the first type were the only ones
encountered by our experienced lucid dreamers who carried out the experiments
without any anxiety or fear. They can sometimes be described as cosmic
experiences with a holographic structure in which the self and the (phenomenal)
cosmos form a single unit.
The Evolution of Consciousness
A series of phenomenologically differentiated
experiences can be distinguished in which the opposition of the ego (or self)
to the world is eliminated. This is discussed in chapter 10, "The Evolving
Soul", of Gackenbach and Bosveld's Control Your Dreams (1989).
We are of the opinion that such peak
experiences, above all in the Indian culture and subsequently in many western
cultures, are too dependent on meditation techniques and frequently lead to a
passive condition marked by withdrawal from the world. But similar states can
also be reached while physiologically awake. Numerous Japanese Zen Buddhists,
whose outlook is close to German Gestalt theory, are able to reach such states
of consciousness by means of the "outer way"; for example, through
artistic or physical exercises. Zen Buddhist philosophers (see Itsutsu, 186, p.
35) also speak of a "supra‑consciousness". In both Zen Buddhism
and Gestalt theory (which is itself supported by countless empirical
investigations), the vanishing of the ego (or at least its receding into the
background) is the most important prerequisite for unprejudiced perception,
productive thinking, free and creative action. Given, however, that we adopt an
egocentric attitude as part of growing up in our western culture, the road to
creative freedom is not easy. By eliminating certain impediments in the form of
psychological resistance or defense mechanisms, lucid dreaming can provide a
key to the successful traversing of this road (for details see Tholey, 1989c).
It is not possible to describe this road in more detail within the context of
this article; nor the many diverse applications which we have only been able to
touch upon.
In conclusion we would like to point out
that reaching creative freedom in perception, thinking, and artistic or
scientific activity, shares a similarity to "enlightening" or
"waking up" from the robot‑like sleep of our day to day
existence as described by Tart (1986). But we are also of the opinion that
there is a lot of investigative work remaining. We have merely made a single
excursion from which it is only possible to point out new research
perspectives, rather than report final conclusions.
References
Aserinsky & Kleitman (1953). Regularly
occurring periods of eye movements and concomitant phenomena during sleep. Science,
118, 273‑274.
Blackmore, S. (1962). Beyond the bodies.
London: Granada.
Bouchet, C. & Ripert, R.(1986).
Contributions to a panel discussion on the problem of induction. Roger Price (Chair) Stephen LaBerge,
Christian Bouchet, Rogert Ripert and Joe Dane. Lucidity Letter, 5(1), 205‑228.
Chang, G. (1974). Teachings of Tibetan
yoga. Secaucus, New York: Citadel Press.
Dittrich, A. (1985). _tiologie‑
unabh_ngige Strukturen ver_nderter Wachbewu_tseinszust_nde. Stuttgart:
Enke.
Falt‑Schriever, C. (1981). Selbstheilung
durch Traum. Unpublished Vordiplomarbeit. Universit_t Frankfurt am Main.
Fox, O. (1962) Astral projection. New
York: University Books.
Gackenbach, J. & Bosveld, J. (1989). Control
your dreams. New York: Harper & Row.
Gackenbach, J, & LaBerge, S. (Eds.)
(1988). Conscious mind, Sleeping Brain. New Perspectives on lucid dreaming.
New York, London: Plenum Press.
Gibson, J. (1979). The ecological approach
to visual perception. Boston: Houghton Mifflin Company.
Green, C. (1968) Lucid dreams. London:
Hamish Hamilton.
Hillmann,
D. J. (1985). Entering the mirror. A note on out‑of‑the‑body‑experiences
and lucidity. Dream Network Bulletin. 4(1), 5‑6.
Izutsu, T. (1986). Philosophie des Zen‑Buddhismus.
Reinbeck: Rowohlt.
Kalweit, H. (1984). Traumzeit und innerer
Raum. Die Welt der Schamanen. Bern, M_nchen, Wien: Scherz.
Kern, H. (1981). Theorie und Praxis des
Klartr_umens. Unpublished
Vordiplomarbeit. University Frankfurt am
Main.
Kern, H. (1983). Akustische Induktion von
Klartr_umen. Unpublished diploma thesis. University Frankfurt/Main.
K_hler, W. (1938). The place of value in a
world of facts. New York: Livering Publishing corporation.
Klippstein, H. (1988). Hypnotherapy : A
natural method of learning lucid dreaming. Lucidity Letter, 7(2), 79‑88.
Krist, H. (1981). Empirische Studien _ber
Klartr_ume.
Unpublished diploma thesis. University
Frankfurt am Main.
LaBerge, S. (1985). Lucid dreaming.
New York: Ballantine Books.
Leuner, H. C. (1978). Principles and
therapeutic efficacy of Guided Affective
Imagery. In J.L. Singer & K. S. Pope (Eds.), The power of
imagination: New methods in psychotherapy (pp. 125‑166). New
York , London: Plenum Press.
Lewin, K. (1936). Principles of
topological psychology. New York, London: McGraw‑Hill Book
Company.
Lirzer, H. (1981). Empirische
Klartraumstudien unter besonderer
Ber_cksichtigung sch_pferischer Prozesse. Unpublished diploma thesis.
University Frankfurt am Main.
Levitan, L. (1989). A comparison of three
methods of lucid dream induction. Night Light, 1(3), 3, 9‑12.
Malamud, J. R. (1979). The development of
a training method for the cultivation of
"lucid" awareness in fantasy, dreams, and waking life.
Unpublished dissertation available from University Microfilms International,
Ann Arbor, Ml.
Moers‑Messmer, H. v.(1939). Tr_ume mit
der gleichzeitigen Erkenntnis des Traumzustandes. Archiv f_r Psychologie
102, 291‑318.
Muldoon, S. & Carrington, H. (1974). The
projection of the astral body. New York: Samuel Weiser.
Nossack, B. (1989). Klartr_ume ‑
wirklicher als die Wirklichkeit. Das neue Zeitalter, 40(4), 4‑8.
Price, R. & Cohen, D. (1988). Lucid dream
induction. In J. Gackenbach & S. LaBerge (Eds.) Conscious Mind, Sleeping
brain. Perspectives on lucid dreaming (pp. 105‑134), New
York, London: Plenum Press
Reis, J. (1983). Biofeedback‑Induktion
des Klartraumes. Unpublished diploma thesis. University Frankfurt am Main.
Reis, J. (1989a). Entwicklung einer Biofeedback‑Technik zur Induktion
von Klartr_umen. Bewusst Sein, 1 (1), 57‑66.
Reis, J. (1989b). Affektive
Verlaufspph_nomene des Klartraums. Entwicklung einer inhaltsanalytischen
Methode zur Erfassung affektiv‑szenischer Verlaufsph_nomene in
Klartraumprotokollen. Unpublished doctoral dissertation. University
Frankfurt am Main.
Roos, M. (1984). Vergleichstudie zwischen
Klartraumerfahrungen und Erlebnissen unter dem Einflu_ psychedelischer Drogen. Unpublished
diploma thesis. University Frankfurt am Main.
Schlag, C. (In preparation). Die
unterschiedliche Bedeutung der kombinierten Klartrauminduktionstechnik von
Tholey. Diploma thesis.University Saarbr_cken.
Schriever, W. v (1935). Einige
Traumbeobachtungen. Zeitschrift f_r Psychologie, 134, 349‑371.
Stich, K. (1981). Empirische
Untersuchungen zur akustischen Induktion von Klartr_umen. Unpublished
Vordiplomarbeit. University Frankfurt am Main.
Stich, K. (1983) Empirische Untersuchungen
_ber den Zusammenhang zwischen Klartraumtechniken und magischen Techniken.
Unpublished dipoma thesis. University Frankfurt am Main.
Stich, K. (1889). Hat die Wissenschaft noch
von der Magie zu lernen? Eine theoretischer und empirischer Vergleich zwischen
Wissenschaft und Magie. Bewusst Sein , 1(1), 67‑80.
Tart, C. (1986). Waking up. Folcano:
Independent Service.
Tholey, P. (1973). Die _berpr_fung psychophysiologischer
Traumtheorien mit Hilfe der Klartraumtechnik. Unpublished lecture
manuscript. University Frankfurt am Main.
Tholey, P. (1977). Der Klartraum. Seine
Funktion in der experimentellen Traumforschung. In W. Tack (Ed.): Bericht
_ber den 30. Kongre_ der Deutschen Gesellschaft f_r Psychologie in Regensburg,
1976, 376‑378. G_ttingen: Hogrefe.
Tholey, P. (1980a). Erkenntnistheoretische
und systemtheoretische Grundlagen der Sensumotorik. Sportwissenschaft, 10,
7‑35.
Tholey, P. (1980b). Klartr_ume als Gegenstand
empirischer Untersuchungen. Gestalt Theory, 2, 175‑191.
Tholey, P. (1981). Empirische Untersuchungen
_ber Klartr_ume. Gestalt Theory, 3, 21‑62.
Tholey, P. (1982). Bewusstseinsver_nderung im
Schlaf. Wach' ich oder tr_um' ich? Psychologie heute, 9 (12), 68‑78.
Tholey, P. (1983a). Techniques for inducing
and manipulating lucid dreams. Perceptual
and Motor Skills, 57, 79‑90.
Tholey, P. (1983b). Relation between dream
content and eye movements tested by lucid dreams. Perceptual and Motor Skills,
56, 875‑878.
Tholey, P. (1984). Der Klartraum ‑ Hohe
Schule des Traums. In K. Schnelting (Ed.), Hilfe ich tr_ume (pp. 100‑118).
M_nchen: Goldmann.
Tholey, P. (1985). Haben Traumgestalten ein
Bewu_tsein? Eine experimentell‑ph_nomenologische Klartraumstudie. Gestalt
Theory, 7, 29‑46.
Tholey, P. (1986a). Deshalb Ph_nomenologie! Gestalt
Theory, 8, 144‑163.
Tholey, P. (1986b). Letter to editor. Lucidity
Letter, 5(2), 45‑48.
Tholey, P. (1986c). Lucid‑OBE Comment. ASD‑Newsletter,
3(4), 15.
Tholey, P. (1988a, 4. Ed.).
Gestaltpsychologie. In R. Asanger und G.
Wenninger (Eds.): Handw_rterbuch der Psychologie (pp. 249‑255).
Weinheim, Basel: Beltz.
Tholey, P. (1988b). A model for lucidity
training as a means of self‑healing and psychological growth. In J.
Gackenbach und S. LaBerge (Eds.): Conscious mind, sleeping brain.
Perspectives on lucid dreaming (pp. 263‑287). New York, London:
Plenum Press.
Tholey, P. (1988c). Overview of the German
research in th field of lucid dreaming. Lucidity Letter, 7(1), 26‑29.
Tholey, P. (1989a). Consciousness and
abilities of dream characters observed during lucid dreaming. Perceptual and
Motor Skills, 68, 567‑578.
Tholey, P. (1989b). Bewusstsein,
Bewu_tseinsforschung, Bewusst Sein. Bewusst Sein, 1 (1), 9‑24.
Tholey, P. (1989c). Die Entfaltung des
Bewu_tseins als ein Weg zur Sch_pferischen Freiheit. ‑ Vom Tr_umer zum
Krieger. Bewusst Sein, 1(1), 25‑56.
Tholey, P. (In preparation). Heilendes
Tr_umen. Seltheilung und Pers_nlichkeitsentfaltung durch Klartraumtherapie.
Freiburg: Herder.
Tholey, P. & Utecht, K. (1989, 2. Ed.). Sch_pferisch
Tr_umen. Der Klartraum als Lebenshilfe. Niernhausen, Ts.: Falken Verlag.
Utecht, K. (1986). Einige Voraussetzungen
zum Erlernen des Klartr_umens. Unpublished diploma thesis. University
Frankfurt am Main.