Studying dream content using the archive and search engine on DreamBank.net

This paper shows how the dream archive and search engine on DreamBank.net, a Web site containing over 22,000 dream reports, can be used to generate new findings on dream content, some of which raise interesting questions about the relationship between dreaming and various forms of waking thought. It begins with studies that draw dream reports from DreamBank.net for studies of social networks in dreams, and then demonstrates the usefulness of the search engine by employing word strings relating to religious and sexual elements. Examples from two lengthy individual dream series are used to show how the dreams of one person can be studied for characters, activities, and emotions. A final example shows that accurate inferences about a person’s religious beliefs can be made on the basis of reading through dreams retrieved with a few keywords. The overall findings are similar to those in studies using traditional forms of content analysis.     

The reinterpretation of dreams: an evolutionary hypothesis of the function of dreaming

Several theories claim that dreaming is a random by-product of REM sleep physiology and that it does not serve any natural function. Phenomenal dream content, however, is not as disorganized as such views imply. The form and content of dreams is not random but organized and selective: during dreaming, the brain constructs a complex model of the world in which certain types of elements, when compared to waking life, are underrepresented whereas others are over represented. Furthermore, dream content is consistently and powerfully modulated by certain types of waking experiences. On the basis of this evidence, I put forward the hypothesis that the biological function of dreaming is to simulate threatening events, and to rehearse threat perception and threat avoidance. To evaluate this hypothesis, we need to consider the original evolutionary context of dreaming and the possible traces it has left in the dream content of the present human population. In the ancestral environment human life was short and full of threats. Any behavioral advantage in dealing with highly dangerous events would have increased the probability of reproductive success. A dream-production mechanism that tends to select threatening waking events and simulate them over and over again in various combinations would have been valuable for the development and maintenance of threat-avoidance skills. Empirical evidence from normative dream content, children's dreams, recurrent dreams, nightmares, post traumatic dreams, and the dreams of hunter-gatherers indicates that our dream-production mechanisms are in fact specialized in the simulation of threatening events, and thus provides support to the threat simulation hypothesis of the function of dreaming.     

Intentionality Analysis and the Problem of Self and Other

Dennett recounts an alarm clock dream which he experienced as taking a long time even though the alarm presumably sounded for only a short time. His explanation of this paradoxical behavior of time in dreams is that there actually is no dream experience but that unexperienced dreams are composed directly into memory banks and are subsequently played back on awakening. I critique Dennett's theory of dreams in Heideggerian terms on the grounds that he takes temporality in a common-sense superficial way. I review Heidegger's theory of time and using Dennett's own dream show that “temporality temporalizes itself' in dreams too as a free production of dreaming Dasein. Dream time is what dreaming temporality produces whatever the clocks of waking show, and is entirely consistent with authentic dream experience. An appreciation of the process of dreaming temporality temporalizing itself supports Heidegger's concept of temporality as an a priori of Dasein's Being.     

Another look at dreaming: disentangling Freud's primary and secondary process theories

The Interpretation of Dreams contains Freud's first and most complete articulation of the primary and secondary mental processes that serve as a framework for the workings of mind, conscious and unconscious. While it is generally believed that Freud proposed a single theory of dreaming, based on the primary process, a number of ambiguities, inconsistencies, and contradictions reflect an incomplete differentiation of the parts played by the two mental processes in dreaming. It is proposed that two radically different hypotheses about dreaming are embedded in Freud's work. The one implicit in classical dream interpretation is based on the assumption that dreams, like waking language, are representational, and are made up of symbols connected to latent unconscious thoughts. Whereas the symbols that constitute waking language are largely verbal and only partly unconscious, those that constitute dreams are presumably more thoroughly disguised and represented as arcane hallucinated hieroglyphs. From this perspective, both the language of the dream and that of waking life are secondary process manifestations. Interpretation of the dream using the secondary process model involves the assumption of a linear two-way "road" connecting manifest and latent aspects, which in one direction involves the work of dream construction and in the other permits the associative process of decoding and interpretation. Freud's more revolutionary hypothesis, whose implications he did not fully elaborate, is that dreams are the expression of a primary mental process that differs qualitatively from waking thought and hence are incomprehensible through a secondary process model. This seems more adequately to account for what is now known about dreaming, and is more consistent with the way dream interpretation is ordinarily conducted in clinical practice. Recognition that dreams are qualitatively distinctive expressions of mind may help to restore dreaming to its privileged position as a unique source of mental status information.     

The Anomalous Foundations of Dream Telling: Objective Solipsism and the Problem of Meaning

Little sociological attention is directed to dreams and dreaming, and none at all is directed to how people tell one another about dreams. Ordinary settings in which dreams are told mimic the conditions of “breaching” experiments and should produce anomie, but dream telling proceeds without trouble. Foundational orientations of ordinary dream talk assimilate into professional dream studies, where dream narratives are “data” and the analysis of narratives is “dream analysis.” That such practices proceed without trouble poses some interesting problems for sociology in terms of how anyone experiences “constraint” in the telling and hearing of dreams.     

Continuity between waking activities and dream activities

Empirical studies largely support the continuity hypothesis of dreaming. Despite of previous research efforts, the exact formulation of the continuity hypothesis remains vague. The present paper focuses on two aspects: (1) the differential incorporation rate of different waking-life activities and (2) the magnitude of which interindividual differences in waking-life activities are reflected in corresponding differences in dream content. Using a correlational design, a positive, non-zero correlation coefficient will support the continuity hypothesis. Although many researchers stress the importance of emotional involvement on the incorporation rate of waking-life experiences into dreams, formulated the hypothesis that highly focused cognitive processes such as reading, writing, etc. are rarely found in dreams due to the cholinergic activation of the brain during dreaming. The present findings based on dream diaries and the exact measurement of waking activities replicated two recent questionnaire studies. These findings indicate that it will be necessary to specify the continuity hypothesis more fully and include factors (e.g., type of waking-life experience, emotional involvement) which modulate the incorporation rate of waking-life experiences into dreams. Whether the cholinergic state of the brain during REM sleep or other alterations of brain physiology (e.g., down-regulation of the dorsolateral prefrontal cortex) are the underlying factors of the rare occurrence of highly focused cognitive processes in dreaming remains an open question. Although continuity between waking life and dreaming has been demonstrated, i.e., interindividual differences in the amount of time spent with specific waking-life activities are reflected in dream content, methodological issues (averaging over a two-week period, small number of dreams) have limited the capacity for detecting substantial relationships in all areas. Nevertheless, it might be concluded that the continuity hypothesis in its present general form is not valid and should be elaborated and tested in a more specific way.     

Working mothers versus homemakers: Do dreams reflect the changing roles of women?

In order to examine potential psychological changes arising from women's new social roles, 15 working and 15 nonworking mothers were asked to report dreams collected within a period of three weeks. In addition, they were administered the Jackson Research Personality Form. Two dreams from each subject were analyzed with selected scales which previous studies had shown to be sensitive to sex differences. On the personality inventory, working mothers were found to have higher social recognition and achievement motives. On the dream content measures, discriminant analyses showed that the two groups could be statistically differentiated on the basis of several scales. In accordance with the notion of continuity between waking and dreaming, working mothers experienced more unpleasant emotions, more male characters, and less residential dreams settings than homemakers. The latter group, surprisingly, had more overt hostility in its dreams. These results suggest that as the trend toward carrying the dual role of wage earner and homemaker is expanding, the gender differences typically observed in dreams content may decrease. They also suggest that the analysis of dream content may prove useful to study the strategies of women adapting to role changes.     

Partial memory reinstatement while (lucid) dreaming to change the dream environment

Lucid dreams often coincide with having control over dream events in real-time, although the limitations of dream control are not completely understood. The current study probed the ability of lucid dreamers to reinstate waking scene memories while dreaming. After brief exposure to an experimental scene, participants were asked to reinstate the scene while lucid dreaming (i.e., change dream scenery to match real-world scene). Qualitative analysis revealed that successful dream scene reinstatements were overwhelmingly inaccurate with respect to the original experimental scene. Importantly, reinstatement inaccuracies held even when the dreamer was aware of them during the dream, suggesting a dissociation between memory access while dreaming and dream imagery. The ability to change the environment of a dream speaks to the high amount of lucid dream control, yet the inaccuracies speak to a lack of detailed control. Reinstating context during lucid sleep offers an experimental method to investigate sleep, dreams, and memory.     

Are delusional contents replayed during dreams?

The relationship between dream content and waking life experiences remains difficult to decipher. However, some neurobiological findings suggest that dreaming can, at least in part, be considered epiphenomenal to ongoing memory consolidation processes in sleep. Both abnormalities in sleep architecture and impairment in memory consolidation mechanisms are thought to be involved in the development of psychosis. The objective of this study was to assess the continuity between delusional contents and dreams in acutely psychotic patients. Ten patients with a single fixed and recurring delusional content were asked to report their dreams during an acute psychotic break. Sixteen judges with four different levels of acquaintance to the specific content of the patients’ delusions were asked to group the dreams, expecting that fragments of the delusional thought would guide the task. A mathematical index (f, t) was developed in order to compare correct groupings between the four groups of judges. Most judges grouped the dreams slightly above chance level and no relevant differences could be found between the four groups [F(3, 12) = 1.297; p = n.s.]. Scoring of dreams for specific delusional themes suggested a continuity in terms of dream and waking mentation for two contents (Grandiosity and Religion). These findings seem to suggest that at least some delusional contents recur within patients’ dreams. Future studies will need to determine whether such continuity reflects ongoing consolidation processes that are relevant to current theories of delusion formation and stabilization.     

Madness and Prophecy: Dreams,Texts, and the Power of Rabbinic Interpretation

To the rabbis, dreams were a serious theological challenge. While in the Hebrew Bible dreams could be prophetic and therefore a source of authority, rabbinic authority was based on textual interpretation rather than direct revelation. This article examines one rabbinic strategy for responding to this challenge: the Talmudic dream ritual of Berakhot 55b. Through this ritual the rabbis place the dreamer in the position of a supplicant. Dreaming becomes like an illness or curse rather than a revelation. Instead of telling the dream, the dreamer prays for its healing. This article argues that this ritual itself is a form of interpretation, both of the dreamer’s dream and of the biblical texts about dreaming, in which the biblical idea of revelation through dreams is retained but the dream itself is stripped of any specific prophetic meaning. Through the performative speech of this ritual the dreamer places the dangerous dream under the power of rabbinic authority.

Attributional style, dreaming and depression

The relationship between attributional style, depression and dreaming was explored by analysing dream reports from 80 subjects for evidence of attributional style using the Content Analysis of Verbatim Material (CAVE) technique. These scores were then compared with a waking measure of attributional style—the Expanded Attributional Style Questionnaire (EASQ) and with levels of depression as measured by the BDI. Contrary to expectations, dream attributional style did not correlate with waking attributional style, nor was there a significant correlation between internal, global and stable attributional style in dreams and level of depression. Results did support previous research that an internal, stable and global waking attributional style correlates with depression.     

Creativity and Dreaming: Correlation of Reported Dream Incorporation Into Waking Behavior With Level and Type of Creative Interest

Dreaming has been postulated to be a functional intrapersonal component of the creative experience. In this study, a previously validated questionnaire is used in a sleep laboratory population (N = 517) to assess levels of dream incorporation into waking behavior. Those responses are correlated with reported levels of involvement and self-defined types of the creative process. Greater involvement in creative process was significantly associated with greater incorporation of dreams into waking behavior. The reported types of creative outlet were divided for analysis between those with a creative product and those without product (experiential). The creative product grouping showed higher levels of reported dream incorporation into behavior than the experiential grouping, with both of these groupings reporting significantly higher levels of dream incorporation into waking behavior than the grouping reporting no creative outlet. Gender differences were found for both incorporation of dreaming into waking (significantly higher responses in females) and types of creative outlet (creative product significantly higher in females, experiential in males). In this study, level of interest in the creative process was positively correlated with reported level of dream incorporation into waking behavior. This study suggests that dreaming is likely to have a functional role in the creative process.     

Properties of the organization of memory for people: Evidence from dream reports

Steyvers and Tenenbaum (2005) showed that semantic networks for words have three organizational properties: short average path lengths, high clustering, and power law degree distribution. If these are general properties of memory organization, they would apply to memory for other complex material, including people and relations between them. In addition, if during dreaming, characters are generated via knowledge in the dreamer’s memory, the three properties would be found in a relational network of characters in dreams. In dream reports from three individuals, two characters in the same dream were considered affiliated. Resulting social networks have the three properties, with the power law holding when low degrees are omitted. One network with a treelike outline is different from the other two. Results suggest associative memory has the three properties, and demonstrate that dream reports are a potentially valuable source for information about social networks.     

Linguistic Phenomena and Language Selection in the REM Dreams of German-English Bilinguals

Sixteen German-English bilinguals were studied in a sleep laboratory for four nonconsecutive nights each. Half were native English speakers living in Zürich, and half native German speakers living in Atlanta. Presleep thought samples were solicited each evening and REM dream reports each night; subjects judged the waking appropriateness of their imagined speech and language phenomena, and also identified waking sources of their dream imagery, the following mornings. Incidences of dreaming and of speech therein generally were similar to those of monolinguals. Whether sessions were conducted in German (two nights) or English (two nights) did directly influence language selection in subjects' dreams. Judged appropriateness of language selection to imagined events was very high for thought samples, and high for REM dreams. Sources for thought samples were generally consonant with the language dominant at study site; for REM dreams this relationship was considerably weaker. Judged waking appropriateness to imagined situations was more strongly related to language selection than was the language reference of the supposed sources of those situations.     

Sex differences in the object representations in the dreams of adolescents

The present study explored sex and age differences in the level of object representations and human movement in the dreams of adolescents. In order to test empirically the contention that early object relations are significantly linked to the formation of children’s gender identity, 389 dreams recorded by 115 adolescents, ages 15–18, were scored for object representations and levels of human movement. As predicted, there were significant differences in the quality of object representations in male and female adolescent’s dream content. In addition, female’s dreams contained significantly higher amounts of human movement than males’ dreams although these differences may well be attributable to longer dream narratives in the female sample. Further, these sex differences were most pronounced at the highest end of the sample age range. Results are discussed in terms of object relations adolescent development. The authors wish to thank Patricia Heenan, M.A., for her invaluable assistance with data management, Alice Pope, Ph.D., for her helpful suggestions, and Dave Cowen, Ph.D., for making his data available to us. Portions of this paper were presented at the Association for the Study of Dreams, June 1996, Berkeley, CA.     

Gods and REMS: The implications of recent dream research for the psychology of religion

Throughout history dreams have been primarily the province of religion. People in many cultures have looked to dreams as sources of spiritual insight and divine revelation. The relationship between traditional religious views of dreams and modern psychological views of dreams has long interested psychologists of religion—for dreams are a uniquely fertile subject for comparing religious and psychological understandings of human experience. In recent years there have been many revolutionary discoveries in dream research, discoveries that have taken us far beyond the seminal works of Freud, Jung, and the early sleep laboratory researchers. This essay describes the work of three leading contemporary dream researchers (neurophysiologist J. Allan Hobson, psychologist Stephen LaBerge, and anthropologist Barbara Tedlock) and evaluates the implications of their findings for our understanding of the religious dimensions of dreams. The essay concludes with some reflections on the valuable role of dream study in the psychology of religion. The primary claim is that recent dream research can make important contributions to current psychology of religion discussions about such issues as interdisciplinary inquiry, hermeneutics, the cross-cultural study of religious experience, the cultural and religious context of modern psychology, and the practical concerns of pastoral counselors.This essay is based on a paper presented on November 25 at the 1991 Annual Meeting of the American Academy of Religion, Kansas City, Missouri.     

Relation between waking sport activities, reading, and dream content in sport students and psychology students

The continuity hypothesis in its general form states that dreams reflect waking life: concerns, thoughts, and experiences (G. W. Domhoff, 1996; M. Schredl, 1999; I. Strauch & B. Meier, 1996). For example, athletes and sport students dream about sports more often than do psychology students, presumably reflecting their engagement in sport activities and sport theory (D. Erlacher & M. Schredl, 2004). In the present study, the authors tested the previously unexamined hypothesis that differences in dream content would directly reflect individuals' differing amounts of waking sport activities. As expected, the amount of time that individuals spent engaged in an activity (sports or reading) was directly related to their percentage of corresponding dreams. Also, individuals reported reading dreams less frequently than they did sport dreams, although reading was more prominent in their waking lives than were sport activities. The findings also indicated that other factors such as emotional involvement and associated worries might be of importance in explaining the relation between waking activities and dream events. Future studies using longitudinal designs would shed more light on this relation and would help derive a more precise formulation of the continuity hypothesis.     

Emotion and cognition: feeling and character identification in dreaming

This study investigated the relationship between dream emotion and dream character identification. Thirty-five subjects provided 320 dream reports and answers to questions on characters that appeared in their dreams. We found that emotions are almost always evoked by our dream characters and that they are often used as a basis for identifying them. We found that affection and joy were commonly associated with known characters and were used to identify them even when these emotional attributes were inconsistent with those of the waking state. These findings are consistent with the finding that the dorsolateral prefrontal cortex, associated with short-term memory, is less active in the dreaming compared to the wake brain, while the paleocortical and subcortical limbic areas are more active. The findings are also consistent with the suggestion that these limbic areas have minimal input from the dorsolateral prefrontal cortex in the dreaming brain.     

From Freud’s dream-work to Bion’s work of dreaming: The changing conception of dreaming in psychoanalytic theory

Bion moved psychoanalytic theory from Freud's theory of dream-work to a concept of dreaming in which dreaming is the central aspect of all emotional functioning. In this paper, I first review historical, theoretical, and clinical aspects of dreaming as seen by Freud and Bion. I then propose two interconnected ideas that I believe reflect Bion’s split from Freud regarding the understanding of dreaming. Bion believed that all dreams are psychological works in progress and at one point suggested that all dreams contain elements that are akin to visual hallucinations. I explore and elaborate Bion’s ideas that all dreams contain aspects of emotional experience that are too disturbing to be dreamt, and that, in analysis, the patient brings a dream with the hope of receiving the analyst’s help in completing the unconscious work that was entirely or partially too disturbing for the patient to dream on his own. Freud views dreams as mental phenomena with which to understand how the mind functions, but believes that dreams are solely the ‘guardians of sleep,’ and not, in themselves, vehicles for unconscious psychological work and growth until they are interpreted by the analyst. Bion extends Freud's ideas, but also departs from Freud and re-conceives of dreaming as synonymous with unconscious emotional thinking – a process that continues both while we are awake and while we are asleep. From another somewhat puzzling perspective, he views dreams solely as manifestations of what the dreamer is unable to think.