The Cognitive Social Network in Dreams: Transitivity,Assortativity, and Giant Component Proportion Are Monotonic

For five individuals, a social network was constructed from a series of his or her dreams. Three important network measures were calculated for each network: transitivity, assortativity, and giant component proportion. These were monotonically related; over the five networks as transitivity increased, assortativity increased and giant component proportion decreased. The relations indicate that characters appear in dreams systematically. Systematicity likely arises from the dreamer's memory of people and their relations, which is from the dreamer's cognitive social network. But the dream social network is not a copy of the cognitive social network. Waking life social networks tend to have positive assortativity; that is, people tend to be connected to others with similar connectivity. Instead, in our sample of dream social networks assortativity is more often negative or near 0, as in online social networks. We show that if characters appear via a random walk, negative assortativity can result, particularly if the random walk is biased as suggested by remote associations.     

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.     

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.     

Connectivity and condensation in dreaming.

Converging developments in the cognitive- and neurosciences have brought Freud's hope of a bridge between psychoanalysis and psychophysiology nearer to hand. This paper concerns the relation between dream construction and memory in terms of these new developments. The neural network architecture of memory structures in the brain is described and illustrated with simple examples. We see how a network is connected and how connection weights vary with experience. The distributed representation stored by the network and its crucial properties for mental functioning are discussed. These concepts are used to explain how particular memories of past events are selected for inclusion in the dream. The properties of the neural network suggest that images of distinct past events are conflated at times during the selection process. The appearance of these conflated images may complicate the matching of day residues with representations of past events in the dream itself. Some likely implications for psychoanalytic theory are explored.     

A "Jekyll and Hyde" within: aggressive versus friendly interactions in REM and non-REM dreams

We hypothesized that representations of social interactions in REM and non-REM (NREM) dreams would reflect differing regional brain activation patterns associated with the two sleep states, and that levels of aggressive interactions would be higher in REM than in NREM dreams. One hundred REM, 100 NREM, and 100 wake reports were collected in the home from 8 men and 7 women using the Nightcap sleep-wake mentation-monitoring system and scored for number and variety of social interactions. We found that (a) social interactions were more likely to be depicted in dream than in wake reports, (b) aggressive social interactions were more characteristic of REM than NREM or wake reports, and (c) dreamer-initiated friendliness was more characteristic of NREM than REM reports. We conclude that processing of, or simulations about, selected social interactions is preferentially performed while "off-line" during the dream state, with the REM state specializing in simulation of aggressive interactions and the NREM state specializing in simulation of friendly interactions.     

A computational account of dreaming: Learning and memory consolidation

A number of studies have concluded that dreaming is mostly caused by random signals because “dream contents are random impulses”, and argued that dream sleep is unlikely to play an important part in our intellectual capacity. On the other hand, numerous functional studies have suggested that dream sleep does play an important role in our learning and other intellectual functions. Specifically, recent studies have suggested the importance of dream sleep in memory consolidation, following the findings of neural replaying of recent waking patterns in the hippocampus. This study presents a cognitive and computational model of dream process that involves episodic learning and random activation of stored experiences. This model is simulated to perform the functions of learning and memory consolidation, which are two most popular dream functions that have been proposed. The simulations demonstrate that random signals may result in learning and memory consolidation. The characteristics of the model are discussed and found in agreement with many characteristics concluded from various empirical studies.     

Metamorphosed characters in dreams: constraints of conceptual structure and amount of theory of mind

Dream reports from 21 dreamers in which a metamorphosis of a person-like entity or animal occurred were coded for characters and animals and for inner states attributed to them (Theory of Mind). In myths and fairy tales, Kelly and Keil (1985) found that conscious beings (people, gods) tend to be transformed into entities nearby in the conceptual structure of Keil (1979). This also occurred in dream reports, but perceptual nearness seemed more important than conceptual nearness. In dream reports, most inanimate objects involved in metamorphoses with person-like entities were objects such as statues that ordinarily resemble people physically, and moreover represent people. A metamorphosis of a person-like entity or animal did not lead to an increase in the amount of Theory of Mind attribution. We propose that a character-line starts when a character enters a dream; properties and Theory of Mind attributions tend to be preserved along the line, regardless of whether, metamorphoses occur on it.     

Waking and dreaming: related but structurally independent. Dream reports of congenitally paraplegic and deaf-mute persons

Models of dream analysis either assume a continuum of waking and dreaming or the existence of two dissociated realities. Both approaches rely on different methodology. Whereas continuity models are based on content analysis, discontinuity models use a structural approach. In our study, we applied both methods to test specific hypotheses about continuity or discontinuity. We contrasted dream reports of congenitally deaf-mute and congenitally paraplegic individuals with those of non-handicapped controls. Continuity theory would predict that either the deficit itself or compensatory experiences would surface in the dream narrative. We found that dream form and content of sensorially limited persons was indifferent from those of non-handicapped controls. Surprisingly, perceptual representations, even of modalities not experienced during waking, were quite common in the dream reports of our handicapped subjects. Results are discussed with respect to feedforward mechanisms and protoconsciousness theory of dreaming.     

汉字:国人释梦实践的本土化面向

汉字释梦是根据梦像的视觉形象构造,寻找书写结构与其相对应的汉字,再依于汉字的本义把握梦的意义。首先依据现代心理学探讨传统梦学中汉字释梦的思想;然后对汉字释梦的可行性进行深入分析,认为梦和汉字都以表意为首要目的,都采取象形的表达方式,进而提出汉字释梦的操作思路;最后结合案例展现了汉字释梦在实践中的应用。     

‘No Man is an Island’: Effects of social seclusion on social dream content and REM sleep

Based on the Social Simulation Theory of dreaming (SST), we studied the effects of voluntary social seclusion on dream content and sleep structure. Specifically, we studied the Compensation Hypothesis, which predicts social dream contents to increase during social seclusion, the Sociality Bias – a ratio between dream and wake interactions – and the Strengthening Hypothesis, which predicts an increase in familiar dream characters during seclusion. Additionally, we assessed changes in the proportion of REM sleep. Sleep data and dream reports from 18 participants were collected preceding (n = 94), during (n = 90) and after (n = 119) a seclusion retreat. Data were analysed using linear mixed-effects models. We failed to support the Compensation Hypothesis, with dreams evidencing fewer social interactions during seclusion. The Strengthening Hypothesis was supported, with more familiar characters present in seclusion dreams. Dream social interactions maintained the Sociality Bias even under seclusion. Additionally, REM sleep increased during seclusion, coinciding with previous literature and tentatively supporting the proposed attachment function for social REM sleep.     

Portrayal of body weight on children's television sitcoms: a content analysis

Television programs portray characters with idealized body types that for most viewers are unattainable. These body types have become a common source of comparison for many young viewers who evaluate their own self-worth and bodies based on the models they see on television. This study examines body weight, both in terms of frequency and portrayals, focusing on how preadolescent and adolescent characters’ bodies are presented on the sitcoms from three children's television networks. The results indicate that while children's situation comedies have relatively few overweight characters, this small percentage closely parallels national figures. Male and female characters do not differ in their distribution across weight categories. However, when character ethnicity is factored, significant shifts occur. Surprisingly, no differences were observed in the portrayal of physical and mental attributes among weight categories except in social popularity where overweight characters were not as embedded in social networks. Compared to other relevant studies, this research provides some evidence that the treatment and portrayal of overweight characters in children-targeted sitcoms is more positive, equitable, and less stereotypical than in other programming venues and that children are experiencing body type diversity in these fictional portrayals. Nonetheless, above average weight characters still suffer some social marginality and ethnic misrepresentation.     

Mapping the Structure of Semantic Memory

Aggregating snippets from the semantic memories of many individuals may not yield a good map of an individual’s semantic memory. The authors analyze the structure of semantic networks that they sampled from individuals through a new snowball sampling paradigm during approximately 6 weeks of 1‐hr daily sessions. The semantic networks of individuals have a small‐world structure with short distances between words and high clustering. The distribution of links follows a power law truncated by an exponential cutoff, meaning that most words are poorly connected and a minority of words has a high, although bounded, number of connections. Existing aggregate networks mirror the individual link distributions, and so they are not scale‐free, as has been previously assumed; still, there are properties of individual structure that the aggregate networks do not reflect. A simulation of the new sampling process suggests that it can uncover the true structure of an individual’s semantic memory.     

Predicting Employee Turnover From Communication Networks

This article investigates three social network models of employee turnover: a structural equivalence model, a social influence model, and an erosion model. It was predicted that structurally equivalent individuals would be more likely to behave similarly (i.e., leave or stay at their position). The rocial influence model predicted that employees with a greater percentage of direct communication links with leavers would be more likely to leave their job. The erosion model posited that individuals located on the periphery of a social network would be more likely to leave their job or “fall off” the edges of the social network. A total of 170 employees, a census of an organization, were administered a communication network questionnaire asking them to identify the people with whom they communicate at work. Network self-report data were analyzed using NEGOPY and UCINET software. Results provided support for all three models of turnover, with the erosion model explaining more of the variance than the other two models. Future research examining communication networks and employee turnover is proposed, on the basis of these results.     

Day residue and screen memory in Freud's dream of the botanical monograph

Freud's theory of dream construction allowed the censorship to intervene only when a repressed infantile wish emerged from the unconscious. In his (1899) paper on screen memories, however, he proposed a mechanism for the defensive displacement of current events as they are sorted for introduction into permanent memory. I suggest that Freud was actually describing the conflictual process through which the day residue of the dream is formed. Day residue and screen memory are closely related as elements of the dreamer's present and past experience displaced from his more central instinctual concerns. Freud's dream of the botanical monograph clearly illustrates this relation. Substituted day residues were matched in the dream with relatively innocuous memories of past events of similar cognitive and affective significance. By retracing the substitutions, one can see how a current conflict over Fliess's role in the writing of the dream book recapitulated a series of Freud's earlier conflicts concerning his father and the power of books.     

An investigation of the use of nocturnal dream reports as diagnostic indices in the assessment of family problem solving

This study investigated the use of series of nocturnal dream reports to diagnose patterns of family functioning. Five families (twenty one subjects) collected a total of 126 dreams. A Treatment Group consisted of two families undergoing family therapy whilst a Non-Treatment Group, comprising three families, was drawn from a population ranging from severely disturbed to superior family functioning. The manifest content of the dreams was analysed, qualitatively and quantitatively. The presenting problem, case history, therapeutic processes and outcome were unknown to the dream researcher. The family therapist was blind to the dream content and dream analysis. Each family was independently rated by the therapist and the dream researcher. The agreement between the two assessments was highly significant. In addition, the problem areas, family transactions and treatment outcome were correctly identified by the dream researcher. It was concluded that analyses of dream series reflect the problem areas encountered by a family system. Implications for therapeutic strategies are discussed.     

Holocaust Survivors in Hasidic and ultra-Orthodox Jewish populations

This article reports on Holocaust survivorship amongst Hasidim and ultra-Orthodox groups. The role of the social and religious set in organizing response to the Holocaust is traced. Unique dream phenomena in this group, with brief clinical vignettes, is provided. Often recurring clinical syndromes in the Hasidic Survivor population are discussed. A detailed case history with 'a strategic therapeutic approach is provided, and other treatment considerations are explored. The response possibilities of the system memory in traumatized individuals are outlined, and the centrality of activity-passivity conflicts in Survivors is noted.     

How social network heterogeneity facilitates lexical access and lexical prediction

People learn language from their social environment. As individuals differ in their social networks, they might be exposed to input with different lexical distributions, and these might influence their linguistic representations and lexical choices. In this article we test the relation between linguistic performance and 3 social network properties that should influence input variability, namely, network size, network heterogeneity, and network density. In particular, we examine how these social network properties influence lexical prediction, lexical access, and lexical use. To do so, in Study 1, participants predicted how people of different ages would name pictures, and in Study 2 participants named the pictures themselves. In both studies, we examined how participants’ social network properties related to their performance. In Study 3, we ran simulations on norms we collected to see how age variability in one’s network influences the distribution of different names in the input. In all studies, network age heterogeneity influenced performance leading to better prediction, faster response times for difficult-to-name items, and less entropy in input distribution. These results suggest that individual differences in social network properties can influence linguistic behavior. Specifically, they show that having a more heterogeneous network is associated with better performance. These results also show that the same factors influence lexical prediction and lexical production, suggesting the two might be related.     

Beyond sex differences: Family and occupational roles' impact on women's and men's dreams

The question addressed is: do recent changes in the occupational roles of women, with their indirect influence on men's lives, have an impact on the dreams of women and men? Three groups of parents (N=96) including in equal numbers, mothers at home, wage-earning mothers and fathers, kept a dream diary from which two dreams per dreamer were content analyzed. Assuming continuity between daytime and dream experiences, it was hypothesized that differences in manifest dream content would be a function of single versus dual role enactment, rather than sex. Contrary to predictions, statistical analyses performed on selected dream variables did not yield significant differences between groups for pleasant and unpleasant emotions, friendly interactions and aggression. Dream characters, and the concerns they reflect, were found to vary, though, according to social roles. Commitment to their family was reflected above all in the mothers' at home dreams, while commitment to their profession took precedence in those of the wage-earning mothers. Comparable commitment to work and family was found among the fathers. Findings suggest that as gender differences in waking life decrease, so may differences in dreams.     

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.     

Adult recollections of earliest childhood dreams: a cross-cultural study

In two studies, Caucasian and Asian college students recalled their earliest memory of a dream, and they provided information about behaviours and beliefs associated with dreaming. Consistent with previous research on childhood amnesia, participants rarely recounted dreams that occurred before age 3. In Study 1, the mean age of the earliest dream memory was 14 months earlier for Caucasians than for Asians. In Study 2, more Asians than Caucasians were unable to remember a childhood dream. Dream-related behaviours and beliefs also differed markedly across cultures. Compared to Asians, Caucasians reported talking more frequently with parents about their dreams in childhood, receiving stronger parental encouragement to share dreams, and feeling more comfortable doing so. Caucasians also reported sharing their dreams with others more frequently in adulthood and they assigned greater value to their dreams. Most Caucasians but few Asians consented to the researchers' request to send parents a questionnaire concerning the participant's childhood dreams. The results support the social interaction explanation for autobiographical memory development, in which parent-child conversations about the personal past contribute to memory accessibility.