Review of the 2016 Conference of the International Association for the Study of Dreams

rolducAt this year’s annual conference of the International Association for the Study of Dreams (IASD), held June 24-28 in Kerkrade, the Netherlands, the world’s leading dream researchers gathered to share their latest findings. The conference ran for four and a half days, with six or seven simultaneous tracks of events going on from morning through the evening. It was truly a feast of dreaming!

Every year it takes me a while to process and digest all the events, conversations, and impressions that occurred during the conference. It’s way too much to take in while there, so I try to keep notes and then reflect on them over the summer and fall. As I look through my notes from this year, these strike me as the highlights from the latest IASD gathering:

Iain Edgar, an anthropologist at Durham University in the UK, gave a chilling presentation on his investigations into the dream beliefs and practices of Islamic jihadists, who are using social media with remarkable effectiveness to share their violent dreams and encourage others to do so as well.

Pilleriin Sikka, a lecturer in cognitive neuroscience at the University of Skovde in Sweden, described the challenges of accurately measuring emotional content in dreams. (A current debate in the field: are dreams predominated by negative emotions, or do dreams have a roughly even balance of positive and negative emotions?) Her study highlighted the importance of transparency in the methods used for studying this aspect of dreaming, because different methods often yield different results.

Nils Sandman, a doctoral student at the University of Turku in Finland, reported on a national demographic study in Finland that found higher nightmare frequency is associated with insomnia, depression, low life satisfaction, suicidality, and generally poor health. This supports clinical theories that recurrent nightmares are possible symptoms of mental and physical illness.

kitt price, a senior lecturer in modern and contemporary literature at Queen Mary University, London, described their historical and cultural analysis of the use in 19th and 20th century Britain of mass media to gather public reports of precognitive types of dreams. The BBC and other media outlets gathered thousands of such reports, many of which remain available for study today. price’s research suggests that interest in paranormal dreaming does not diminish in modern Western societies, but expresses itself through different kinds of media.

Alaya Dannu, an MFA student in creative nonfiction from the UK, discussed the ongoing influence via dreams of the beliefs and customs of civilizations that no longer exist (e.g., from pre-colonial Africa). She brought together art, anthropology, history, and her own personal experiences to illustrate the way dreaming helps to shape a personal and collective sense of identity over time.

Alison Dale and Joseph DeKonick, psychologists from the University of Ottawa, presented findings on gender differences in the dreams of Canadians that showed males have more dreams of aggression while females have more dreams with family and friend characters and more negative emotions. These findings fit with those from research on the dream patterns of other nationalities, adding strength to the idea that some tendencies of dreaming have roots in deep psychological processes shared by many if not all humans.

Don Kuiken, a psychologist from the University of Alberta, talked about his ongoing work on “impactful dreams,” focusing in this presentation on what he calls “existential” dreams of intense sadness, often following a loss or death of a loved one, which can paradoxically lead to “sublime disquietude” and greater aesthetic appreciation for life. Kuiken’s research has been an inspiration to me for many years, and this new development brings his impactful dreams work into dialogue with his earlier studies of dreams and the philosophical aesthetics of Samuel Taylor Coleridge.

Wojciech Owczaraski, from the University of Gdansk in Poland, described a project devoted to gathering dream reports from survivors of the Auschwitz concentration camp in WWII. This promises to be an important and heart-wrenching collection of dreams.

Caroline Horton and Josie Malinowski, psychologists at Bishop Grosseteste University and University of Bedfordshire, respectively, both in the UK, described their research testing the role of dreams in emotional assimilation. They found the strongest effects in dreams with greatest emotional intensity and personally important material. Researchers continue to debate the issue of how much of a role, if any, dreaming plays in memory, learning, and information processing. Several studies at the conference reported negligible results in experiments involving dreams and memory consolidation, and Horton and Malinowski’s project was the only one that found an angle of approach that might be promising.

Antti Revonsuo and Katja Valli, cognitive neuroscientists at the University of Turku in Finland, gave talks about their “social simulation theory” of dreaming, whereby dreams function to provide simulations of social situations that have relevance for evolutionary fitness and survival. This theory grew out of Revonsuo’s earlier studies of “threat simulation” in dreaming. The main advantage of Revonsuo and Valli’s current approach is that it builds on empirical research about dream content—quantitative data about the actual dreams of a large and wide variety of people. This kind of research has shown that dreams are filled with characters, social interactions, and verbal communications. These are the features of dreaming Revonsuo and Valli are trying to explain in terms of the evolutionary history of human cognitive functioning.

These are only some of the sessions I personally attended; there were many other great presentations I didn’t get to see but only heard about from other people.

The conference as a whole left several general impressions about the state of dream research.

First, new advances in various areas of investigation make it clear the mind’s activities in sleep are much more complex and sophisticated (“high-level”) than mainstream psychologists have long assumed. The numerous presentations on lucid dreaming and cognition during the sleep state support this deepening of our understanding of how the mind works (and plays) during sleep and dreaming.

Second, there has been tremendous growth in empirical data, but not as much progress in theoretical understanding. Researchers have more detailed dream material to look at than ever before, but they have very little to say that’s new about what dreams mean or how they function. My concern is that the real gains that have been made in describing the neurocognitive processes involved in dream formation are not improving our understanding of the role of dreaming in healthy human functioning. Very few researchers (Revonsuo and Valli being exceptions) try to locate their studies within a bigger theoretical framework. Perhaps this is simply the stage we’re at, following the demise of psychoanalysis and brainstem reductionism; we know that was wrong, but we’re still not sure what’s a better model. So in the meantime, we gather more data.

Third, and in tension with the second, the practical use of dreams in clinical and therapeutic contexts continues to expand and diversify. Professionals and laypeople involved in caregiving, whether in hospitals, school health centers, private therapy practices, hospice groups, churches, or non-governmental organizations, are using dreams as a valuable resource in helping people gain insights into their suffering and find their way back towards health and wholeness. Many conference presentations described the positive healing effects of bringing dreams into the therapeutic process, in almost every kind of clinical modality.

At some point the researchers and the clinicians are going to have to talk to each other…. perhaps with new technologies for studying dreams as the mediating link.

 

Recent Interviews About “Big Dreams”

Big Dreams: The Science of Dreaming and the Origins of Religion (2016)In the past couple of weeks I have spoken several times with journalists about Big Dreams: The Science of Dreaming and the Origins of Religion.  It’s a daunting experience to have smart people read what you’ve written and ask sharp questions about how you put together your argument… and all the more intimidating with a tape recorder running.  But I think the basic ideas from the book come through pretty well in these pieces. Continue reading “Recent Interviews About “Big Dreams””

Beyond the Eclipse of Research on Big Dreams

Solar_eclipse_1999_4_NROn Friday, February 19, I will visit with C.G. Jung Society of Atlanta and give a talk on “Big dreams: Religion, science, and Jung’s theory of highly memorable dreams,” followed by a workshop on Saturday titled “Dreaming as Theater of the Psyche.” I wrote the following essay for the Society newsletter as a prelude to the talk and workshop.  Anyone who lives in the Atlanta area is welcome to join us!

“Big dreams,” as originally conceptualized by C.G. Jung, are rare, extremely vivid, and highly memorable dreams that people experience as being dramatically different from the relatively mundane and forgettable contents of “little dreams.” To appreciate the importance of this distinction between big and little dreams, one has to accept the basic premise that dreams in general have some degree of meaning. Unfortunately many psychologists in the years after Jung lost confidence in that premise, due to scientific developments that seemed to cast doubt on the whole enterprise of dream research. During the latter half of the 20th century few investigators devoted much time or energy to studying the more unusual and intensified forms of oneiric experience Jung characterized as “big” dreams. Now, however, thanks to the 21st century technological developments in cognitive science and data analysis, a better case can be made for the psychological significance and therapeutic value of dreaming in general, and highly memorable and impactful big dreams in particular. The time is ripe for a new approach to the kinds of dreams Jung referred to as the “richest jewels in the treasure-house of psychic experience.”

Jung’s mentor in the study of dreams, Sigmund Freud, was not especially interested in distinguishing between different types of dreams, big, little, or otherwise. Freud’s main goal was to illuminate the unconscious roots of a dream in the childhood wishes, fears, and fantasies of the dreamer.   In his view the dream itself is irrelevant and can be ignored once the underlying wish has been identified. Indeed, because Freud’s theory posited that dreaming serves to protect sleep against disturbing eruptions from the unconscious, a big dream could be seen as a total failure of the basic function of dreaming. In his therapeutic work Freud did focus on strong emotions, unusual images, and character metamorphoses in his clients’ dream reports, all of which are frequent markers of big dreams, so he had some practical familiarity with the value of intensified dreaming. But he never took the next step of examining the distinctive qualities of these dreams and reflecting on what they mean for our psychological understanding of the human mind. That step was left for Freud’s erstwhile friend and follower, Jung.

Jung actually took two important steps that helped open the way for further investigation in this realm. In addition to naming the fundamental difference between average dreams and highly intensified big dreaming, Jung also recognized the importance of studying dreams in a series, across a period of time. He found in his clinical work that looking at a series of dreams, not just single dreams in isolation, enabled a better perspective on the psychological dynamics of the person’s life than could be gained from any one dream alone. Not only was this an invaluable insight for therapeutic purposes, but it also provided a way of clarifying the big dreams concept. To say precisely what makes a dream unusual and extraordinary, it helps to know what counts as the usual and ordinary patterns of dreaming. Studying a series of dreams can identify those general patterns so it becomes easier to determine with more specificity what makes big dreams so big.

Both Freud and Jung developed their ideas about dreams from the same sources of knowledge: their personal experiences, their clinical practices with mentally ill patients, their deep readings of classical philosophy and theology, and their early inklings of the significance of Darwinian evolution for theories of human nature. In therapeutic terms, Freudian and Jungian approaches to dream interpretation worked: they enabled clients to express emotionally important concerns and difficult feelings, and they gave therapists a new window into their clients’ unconscious conflicts. The practical value of including dreams in psychotherapy has never been seriously questioned by those with actual experience in the process, and recent works by Clara Hill and Milton Kramer show how vibrant this area of study remains.

However, as time went on mainstream psychologists found it increasingly difficult to support the theoretical claims of the early pioneers of dream study. Two blows in particular prompted great skepticism towards Freudian and Jungian approaches, leading to a general eclipse of interest in dreams of any type or variety through the better part of the 20th century. The first blow was the discovery of two fundamentally different kinds of sleep, known as Rapid Eye Movement (REM) and Non-Rapid Eye Movement (NREM) sleep by American researchers, and referred to as Paradoxical Sleep (PS) and Slow Wave Sleep (SWS) by French researchers. Both sets of terms refer to regular cycles of variation in the levels of activation throughout the brain during an ordinary night’s sleep. Researchers soon found that dream recall was closely associated with the most intense phases of activation during the sleep cycle, which suggested that dreams were caused by automatic processes of the neural system in sleep (this isn’t actually true, but it seemed so for many years). These findings made it much harder to argue that a psychological approach could reach the “deepest” levels of a dream’s meaning, since neuroscience had apparently shown that the deepest cause of a dream is a purely physiological process in the brain during sleep.

The second blow came from systematic studies of dream content, like those of Calvin Hall and Robert Van de Castle starting in the 1950’s. These researchers accepted the idea that dreams contain some degree of psychological meaning, but they wanted to use quantitative methods to identify where those meanings might be found. The major discovery from this line of research was the simple continuity of dream content with waking life concerns. People tend to dream about the chief concerns of their regular daily lives. Most dreams, according to these findings, involve rather ordinary and mundane content: being in familiar places, with familiar people, doing familiar things. Contrary to their popular portrayal as bizarre and outlandish nonsense, dreams tend to portray fairly straightforward accounts of people’s feelings about their most important relationships, activities, and concerns in waking life.

The statistical research on dream content highlighted a genuine weakness in Freudian and Jungian dream theories, namely a narrow basis of evidence in terms of having access to broad, diverse sources of empirical evidence about dreaming. The research on REM sleep highlighted another weakness of Freudian and Jungian theories: losing connection with the best scientific understandings of the interaction between mind and brain, psyche and soma. Together, these two weaknesses undermined the credibility of Freud’s theory of dreams as wish-fulfillments aimed at protecting sleep and Jung’s theory of dreams as compensations for the excesses of consciousness. Neither theory could account for the neurological sources of dreams or for their mundane, generally trivial content. Jung’s interest in big dreams appeared especially questionable in this light, as it seemed to lead in exactly the opposite direction from where the best scientific evidence was pointing.

Throughout this time, clinicians and therapists kept doing their good and valuable work with dreams, but “eclectically,” with little theoretical guidance or grounding in empirical research. Few mental health professionals have received any training or instruction whatsoever in how to work with clients’ dreams. A few years ago when co-writing a book about dream education, Dreaming in the Classroom with Phil King and Bernard Welt, we were surprised and saddened to find so few schools of professional psychology offering any classes or course modules on the subject of dreams.

Several intrepid investigators have in recent years pursued detailed studies of the phenomenology of big dreams. Harry Hunt, Roger Knudson, Don Kuiken, Mark Solms, Tracey Kahan, Jayne Gackenbach, Ryan Hurd, and others have contributed to a better understanding of what Hunt called “the multiplicity of dreams,” but the overall tenor of 20th century psychology took a decidedly negative turn toward the study of dreams, and therapists today are still paying the price.

Fortunately there are increasing signs of another major shift in dream research that bodes well for greater attention to big dreams in coming years. These signs of change emerge from the same two sources of scientific research that seemed so discouraging for the study of dreams in previous decades. The neuroscience of sleep has now advanced to a point of recognizing the truly remarkable complexity and sophistication of the brain’s activities during sleep. Far from a mental desert devoid of conscious activity, sleep in fact involves a wide variety of cognitive processes operating in ways that are different from, but not necessarily inferior to, those in the waking state. At various points during REM or Paradoxical Sleep, the brain’s overall electrical activation (as measured by EEG devices) equals or even exceeds the levels seen in the brain during waking. These and other findings make it clear that the sleeping brain is more than capable of generating the kinds of emotionally charged, visually intense, cognitively complex experiences that Jung characterized as big dreams.

Just as importantly, the systematic study of dream content has expanded to include more than just “most recent dreams” gathered from college students. Careful analysis of various kinds of dreams, including nightmares, lucid dreams, childhood dreams, death-related dreams, and other kinds of highly intensified dreaming, have shown that there are distinctive patterns of form and content that correlate to a remarkable degree with the latest neuroscientific findings about the brain’s activities during sleep. The ability to identify these kinds of correlations has been improved by database technologies that allow researchers to quickly and reliably analyze large collections of dream reports, compare their word usage frequencies with other collections of dreams, and highlight significant patterns of similarity and difference. The Dreambank (dreambank.net) website of G. William Domhoff and Adam Schneider, along with my Sleep and Dream Database (sleepanddreamdatabase.org), are two resources for exploring the use of these technologies and experimenting with different kinds of dreams and different applications.

Jung’s approach to the study of dream series can be deepened with these new tools for identifying recurrent patterns and tracking changes over time. This has exciting potentials not only for therapeutic practice but also for theoretical insight into the nature and functions of big dreams. The more we learn about the meaningful dimensions of a series of dreams, the better we will be able to appreciate the singular dream experiences that stand out from the ordinary flow of dreaming, the experiences that Jung felt were unique openings into the most profound reaches of the psyche. The brain-mind science of the 21st century might finally be ready to verify Jung’s early insights about big dreams and develop them in creative new directions.

 

Prophetic Rodents: Neuroscientists Find Hints That Rats Dream of the Future

imgres-1New findings from brain researchers at University College London in the U.K. suggest that sleeping rats have the capacity to imagine a place they have never been in waking. This intriguing study does more than support the idea that many animals do indeed dream, in modes appropriate to the neural capacities and environmental experiences of their species. Beyond that, the study shows that rat dreams may have one of the key features of human dreaming, namely the ability to simulate future scenarios and prepare for anticipated efforts to achieve our goals.

Titled “Hippocampal place cells construct reward related sequences through unexplored space” and published in eLife on June 26, the researchers built on previous work showing the importance of the hippocampus in remembering places and forming mental maps of where we have been. The hippocampus is also important for imagination, forethought, and planning future goals. Crucially for this study, the hippocampus is active in waking and sleeping, and researchers have long known that the same hippocampal “place neurons” triggered into firing by a waking-life experience of a particular place will also fire during sleep. The challenge of this study was to find out if hippocampal neurons associated with a place will fire in sleep before any waking experience of the creature actually being in that place. In other words, will the sleeping brain anticipate a desired action? Will it dream of the future?

The experiment involved training rats (with electrodes implanted in their brains) to run through a maze where they could see, but not reach, another chamber where food was visibly located. The rats could also see but not reach an additional chamber with no food. During rest periods, the researchers recorded the rats’ hippocampal activity. Then the researchers let the rats run through the maze with no blockages, so they could reach the new chambers. It turned out the rats’ hippocampal activity when they first entered the new chamber with food was a close match with their hippocampal activity in sleep—the same place neurons that first fired in sleep later fired in waking life, too. The rats seemed to dream of going into that chamber before they actually did so.

The same effect was not found in relation to the chamber with no food. The preceding rest period did not include any hippocampal activity related to the rats’ later experiences in that place. This finding led the researchers to stress the significance of desire and intrinsic motivation in triggering this “preplay” effect.

The ultimate conclusion of the study was that “goal-biased preplay may support preparation for future experiences in novel environments.” These results give us a better understanding of how preplay, or imagination in a more general sense, can “simulate future experiences in environments yet to be actively explored,” in humans and in other species.

The limits of this research are considerable. Only four rats were used as participants; the periods of “rest” were not clearly sleep stages of any specific kind; and the published results depended on an extremely technical analysis that could allow for many hidden errors. These limits should add a note of caution when assessing the possible implications of the research.

That being said, the findings of this study have a clear affinity with theories of dream function that emphasize the values of the anticipatory simulations frequently occurring in dreaming experience. C.G. Jung spoke of “the prospective function” of dreams, Montague Ullman said dreaming worked to maintain an optimal state of “vigilance,” Frederick Snyder viewed sleep and dreaming as a “sentinel” system to prepare for environmental danger, Rosalind Cartwright argued that dreams serve as “rehearsals” for future actions, and Jeremy Taylor has focused on recurrent nightmares as warnings of psycho-spiritual danger in the dreamer’s waking life. Antti Revonsuo and Katja Valli have been developing the “Threat Simulation Theory” as a way of connecting typical patterns in dream content with brain functioning and the evolutionary challenges of our species. In my 2016 book Big Dreams: The Science of Dreaming and the Origins of Religion, I will talk at length about the capacity for creative forethought and visionary insight in dreaming.

All of which is to say, dream researchers from other areas have been working with similar ideas for years, and these new findings from the University College London team are a welcome addition to the accumulating evidence in favor of dreams having some kind of preparatory function that helps to orient the individual toward successful adaptation in the waking world.

Google’s Deep Dreaming Project

Deep Dream 2Google recently released a computer program that may help understand various aspects of visual imagination in dreaming.  Check out these images in their “Inceptionism Gallery” here.  The main discussion of the program is from a June 17 post on the Google Research Blog, here.  Other images can be found at the Twitter hashtag #deepdream.

I talk in more detail about Google’s project and its relevance for dream research in a Psychology Today blog post here.

Lucid Dreaming and the Future of Sports Training

imagesA recently published study in the Journal of Sports Sciences adds new evidence to the idea that physical skills in waking life can be improved by practicing those skills in lucid dreaming. Although the study was small and needs to be replicated, the implications of its findings are potentially enormous for a new mind/body approach to sports training and peak athletic performance.

The study was conducted by German psychologists Tadas Stumbrys, Daniel Erlacher, and Michael Schredl. This team has an excellent background in sports science, sleep laboratory research, and lucid dreaming experiments. Their strong history of high-quality scholarship lends credibility to their claims.

The premise of their study is that a mental simulation of physical behavior is neurologically the same as a “real” enactment of that behavior, with the difference that the former does not extend to bodily movement, while the latter does. As Stumbrys and his colleagues put it, “covert actions are actual actions, except for the fact that they are not executed.” If this is true, as a great deal of neuroscientific evidence indicates it is, then practicing an action “covertly” should have measurable benefits when the action is later performed “openly.” This is the hypothesis that Stumbrys and his colleagues put to the test.

They recruited 68 participants (32 male, 36 female) who followed an online program that trained them in a sequential finger-tapping task on a computer keyboard. The participants were then separated into four groups with different instructions about how to practice the finger-tapping task: 1) actual physical practice, 2) mental practice while awake, 3) mental practice while lucid dreaming, and 4) no practice (the control group). Compared to the control group, all three other groups, including the lucid dreaming group, displayed significant improvements in a follow-up performance of the task after practicing.

The study was not big enough to say if lucid dreaming practice is better or worse than other forms of practice. But the results clearly showed that practice in lucid dreaming does have real performance benefits that are at least comparable to the benefits gained from other practice modes. Given the power of dreams to simulate reality with amazing intensity and accuracy, the possibilities for further development of this approach seem wide open.

In light of these findings, several questions immediately present themselves. What kinds of physical skills are most benefited by lucid dreaming practice? How deep and long-lasting are the improvements? What are the best methods to teach people to have lucid dreams in the first place?

Future studies will be needed to answer these questions. It is not too early, however, to envision some of the practical applications of lucid dreaming in sports training:

1) Providing a safe arena in which high-performance athletes can practice dangerous moves and risky routines, developing skills at the farthest edges of their abilities;

2) Offering injured athletes an opportunity to continue training and skill-building during their rehabilitation;

3) Enabling underprivileged athletes to engage in effective practice of their sports even if they have limited access to physical facilities;

4) Giving athletes at all levels a powerful psychological means of focusing their minds for optimal game-day performance.