Dreams: The Contemporary Theory Ernest Hartmann, M.D. Professor of Psychiatry Tufts University School of Medicine Director, Sleep Disorders Center Newton Wellesley Hospital I was walking along a beach somewhere. It wasn’t exactly like any of the beaches I know, I think my friend Jan was with me. Suddenly, a huge wave reared up out of the ocean and totally engulfed us. I’m not sure what happened after that. I struggled and struggled to get to the surface. There was no one else with me. I’m not sure whether I made it, and I awoke, terrified. Fear, Terror A huge tidal wave is coming at me. A house is burning and no one can get out. A gang of evil men, Nazis maybe, are chasing me. Helplessness, Vulnerability I dreamt about children, dolls — dolls and babies all drowning. He skinned me and threw me in a heap with my sisters; I could feel the pain, I could feel everything. There was a small hurt animal lying in the road. Guilt A shell heads for us (just the way it really did) and blows up, but I can’t tell whether it’s me or my buddy Jack who is blown up. I let my children play by themselves and they get run over by a car. I leave my children in a house somewhere and then I can’t find them. Grief A mountain has split. A large round hill or mountain has split in two pieces, and there are arrangements I have to make to take care of it. A huge tree has fallen down. I’m in this huge barren empty space. There are ashes strewn all about. Scoring for the CI (Central Image) SCORING DREAMS FOR CONTEXTUALIZING IMAGES Definition: A contextualizing image is a striking, arresting, or compelling image — not simply a story — but an image which stands out by virtue of being especially powerful, vivid, bizarre, or detailed. EMOTION LIST 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. fear, terror helplessness, vulnerability, being trapped, being immobilized anxiety, vigilance guilt grief, loss, sadness, abandonment, disappointment despair, hopelessness (giving up) anger, frustration disturbing — cognitive dissonance, disorientation, weirdness shame, inadequacy disgust, repulsion 11. 12. 13. 14. 15. 16. 17. 18. power, mastery supremacy awe, wonder, mystery happiness, joy, excitement hope peace, restfulness longing relief, safety love (relationship) If there is a second contextualizing image in a dream, score on a separate line. Dream ID# 1. CI? (Y/N) 2. What is it? 3. Intensity (rate 1-3) 4. What emotion? 5. Second emotion? I was walking along a beach somewhere. It wasn’t exactly like any of the beaches I know, I think my friend Jan was with me. Suddenly, a huge wave reared up out of the ocean and totally engulfed us. I’m not sure what happened after that. I struggled and struggled to get to the surface. There was no one else with me. I’m not sure whether I made it, and I awoke, terrified. Contextualizing Image (CI) Score 1.6 1.4 1.2 CI Score 1 0.8 0.6 0.4 0.2 0 Most Recent Dream Dream that Stands Out Most Recent Daydream Daydream that Stands Out Contextualizing Image (CI) Scores Mean ± S.E.M. 0.8 0.7 0.6 CI Score 0.5 0.4 0.3 0.2 0.1 0 Waking Sleep Onset NREM REM CI Intensity 2.50 CI Intensity Score 2.00 1.50 1.00 Mean of Student Group 0.50 0.00 0 1 2 3 4 5 Cases 6 7 8 9 10 CI Scores in the Trauma Group (N=10) Versus Matched Student Control Group (N=30) (Mean ± S.E.M.) 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 Trauma Group Student Control Group CI Scores in Students Reporting Abuse or No Abuse 1.12 ± 1.2 1.2 1 0.8 0.65 ± 1.0 0.6 0.4 0.2 0 Abuse * t = 2.63, p = 0.01 No Abuse 9/11 STUDY Methods: Participants • Complete data sets obtained from 44 persons, living in the US who have recorded their dreams every morning for years. • 33 women, 11 men. Mean age about 50. Methods • Each participant provided 20 dreams — the last ten recorded before 9/11 and the first ten after 9/11, without any selection or alteration. Methods: Scoring • All dreams were scored on a blind basis for CI intensity, emotion pictured by the CI, dreamlikeness, and vividness. • Dreams were also scored on three ad-hoc scales of content: 1) attacks 2) buildings like WTC or pentagon 3) airplanes, and on a scale of nightmare-likeness 1.5 1.0 .5 0.0 -.5 -1.0 1 4 7 SUBJECT 10 13 16 19 22 25 28 31 34 37 40 43 Results: After vs. Before 9/11 CI Bef Aft Dif 1.10 1.28 .18 Length 12.93 11.88 -1.04 t p 3.29 .001 one-tailed 1.3 NS D-like 4.50 4.54 .04 .47 NS Viv 4.22 4.24 .02 .17 NS Results, continued Bef Aft Dif t p Bldgs. .059 .104 .045 1.70 NS Planes .045 .061 -.016 .85 NS Attacks .034 .098 .064 2.74 <.01 NM-like .213 .307 2.28 <.05 .094 Results: Nightmares (16 Ss) Before 9/11 After 9/11 Definite nightmares (agreement between two scorers) 3 2 Less definite (one scorer definite/one scorer possible ) 3 3 Results: Nightmares (cont’d) Total possible nightmares (by either scorer) Before 9/11 After 9/11 30 33 All results not significant Conclusions: If we can generalize from these 44 dream journalers, our dream imagery overall was more intense after 9/11/01 than before. Conclusions (continued): However, dreams after 9/11/01 were not significantly longer, more dreamlike or more vivid. They did not contain more references to buildings or airplanes. They did contain slightly more references to attacks and they were scored as slightly more nightmare-like. Conclusions (continued) • Consistent with previous studies the intensity of the dream’s central image (CI) appears to be a measure of emotional arousal or emotional power. Creating a “dream” in the laboratory • If a dream involves the picturing of emotion (“contextualizing emotion”), could one create a dream or something very dream-like by allowing waking imagery (daydream) to develop under the influence of strong emotion? Dreamlikeness Scale (Mean ± S.E.M.) 5 4.8 4.6 4.4 4.2 4 3.8 Recent Lab Lab Daydream Daydream Daydream w/ Emotion Recent Dream Bizarreness Scale (Mean ± S.E.M.) 3.5 3 2.5 2 1.5 Recent Lab Lab Daydream Daydream Daydream w/ Emotion Recent Dream Where To Look For CIs (Easiest to Hardest) • Dreams after trauma • Dreams in stressful situations • Dreams in special situations, such as pregnancy • Dreams in patients in whom a dominant emotion or concern is obvious • Dreams in experimental situations (thirst, hunger, external stimuli) • Dreams in a patient or client about whom information is available • Ordinary dreams from unknown dreamers The more we know the dreamer’s emotional state (emotional concerns) the clearer (“less crazy”) the dream appears to us. Dreaming makes connections. Dreaming makes connections more broadly than waking in the nets of the mind. Dreaming makes connections in the looser, less tightly structured portion of the nets. Dreaming avoids the tightly structured, focused, sensory input processing-motor output feedforward regions and modes of processing in the net. “Nets of the Mind” CBF in REM Sleep vs. Slow Wave Sleep We do not dream of “reading, writing and arithmetic” • Results from 250 good dream recallers RESULTS: Question A (Frequency of the “3 R’s” in dreams) READING 48% of subjects said “never,” and an additional 36% said “hardly ever,” although the group spent 150 ± 94 minutes per day reading. WRITING 56% of S’s said “never” and an additional 36% said “hardly ever,” although this group spent 106 ± 87 minutes per day writing. TYPING 75% of S’s said “never” and an additional 19% said “hardly ever,” although this group spent 98 ± 97 minutes per day typing. CALCULATING 73% of S’s said “never” and an additional 22% said “hardly ever,” although this group spent 23 ± 29 minutes per day calculating. Relative Prominence Scores for Six Activities: X ± S.E.M. 6 5 4 3 2 1 Walking Writing Talking Reading with Friends Sexual Activity Typing Questionnaire study in 250 frequent dreamers. The scale on the left runs from 1: “The activity is far more prominent in my waking life; it hardly occurs in my dreams,” to 7: “The activity is far more prominent in my dreams; it hardly occurs in my waking life.” The connections are not made randomly. The process is guided by emotion. Dreaming contextualizes emotion. More powerful emotion leads to more intense dream imagery. Thus the intensity of the dream image is a measure of the power of the dreamer’s emotion. Figure 1. A CONTINUUM Focused Waking thought Looser, Reverie Less-structured free association Waking thought daydreaming Dreaming What dealt with? perceptual input, math symbols signs, words fewer words, signs, more visual-spatial imagery almost pure imagery How? logical relationship — if A then B less logic, more noting or picturing of similarities, more metaphor almost pure picturemetaphor Selfreflection: highly self-reflective — “I know I am sitting here reading.” less self-reflective, more “caught up” in the process, the imagery in “typical dreams” total thereness, no self reflection Boundaries: solid divisions, categorizations, thick boundaries less rigid categorization, thinner boundaries merging condensation loosening of categories, thin boundaries A CONTINUUM Focused Waking thought Looser, Reverie Less-structured free association Waking thought daydreaming C Sequence of ideas or images: A B C D A B C A D Dreaming B B A D C D Processing: relatively serial; net functions chiefly as a feed-forward net. net functions more as an auto-associative net Subsystems: activity chiefly within structured subsystems activity less within, more across or outside of structured subsystems Contextualizing Image (CI) Score 1.6 1.4 Thick Boundary Subjects Thin Boundary Subjects 1.2 CI Score 1 0.8 0.6 0.4 0.2 0 Most Dream Most Daydream Recent Stands Recent Stands Dream Out Daydream Out Most Dream Most Daydream Recent Stands Recent Stands Dream Out Daydream Out Large portions of the cortex (what we usually think of as “mind”) are basically an image-generator. During focused waking (left-end of the continuum) the cortex can be constrained into acting as a calculator, a reader or filer of texts, a carefully calibrated bodynavigator, etc. Towards the right-end of the continuum it relaxes into pure story-imagery, guided by the emotional state (as in dreaming). Imagery of the Dream (Contextualizing Image) Underlying Emotional State Imagery of the Dream (Contextualizing Image) Underlying Emotional State The cortex acts as an imagemaker Pathways involving amygdala and other subcortical “limbic” areas Focused Waking Sensory Input “Task” Image Generator Memory Emotional State Dreaming Sensory Input “Task” Image Generator Memory Emotional State Engine Wheels TRUCK Metal Gasoline Highways A Journey CAR IN MOTION Motion Beginnings, ends Goal Brakes Start-stop RELATIONSHIP Speed Obstacles In control, out of control Exhilaration, danger Crash? The functions of dreaming Dreaming connects broadly. It interconnects. It interweaves traumatic (and other) new material. This interconnecting has both an immediate function in “smoothing things out” or “calming a storm” and a longer term function in term of providing broader connections — an increase in connections rather than simply consolidation of memory. Dreaming has a quasi-therapeutic function: dreaming allows the making of connections in a safe place. The functions of dreaming (continued) The cross connections, interconnections, weaving in, etc. all occur whether or not a dream is actually remembered. A remembered dream can, of course, be functional in other ways. A new connection in dreaming can play an essential role in problem solving, science, art, and self-knowledge. MAJOR PROPOSITIONS ABOUT DREAMING PROPOSITION FREUD (and often Jung) 1. Dreams are Irrational or psychotic mental products BIOLOGISTS (Crick, Mitchison, Gazzaniga, Hobson, etc.) THIS VIEW (Hartmann) YES YES NO YES NO NO 3. Dreams are “the royal road” or at least a good road to the unconscious YES NO YES 4. Dreams are disguised — the product of “censorship” YES NO NO 2. Every dream is a Fulfillment of a wish MAJOR PROPOSITIONS ABOUT DREAMING PROPOSITION 5. Dreams are essentially a random pattern of activity. FREUD (and often Jung) BIOLOGISTS (Crick, Mitchison, Gazzaniga, Hobson, etc.) THIS VIEW (Hartmann) NO YES NO 6. The dream (manifest NO dream) is often important without interpretation or translation NO YES 7. Dreams are useful (functional) even if forgotten NO NO YES 8. Dreaming is on a NO Continuum with waking, Reverie, daydreaming NO YES 9. In dreams begin responsibilities NO YES NO Functions of REM sleep (major theories) 1. REM sleep is necessary for, or at the very least facilitates, certain kinds of learning (based on numerous animal and human studies by Hennevin and Leconte, C. Smith, De Koninck, Stickgold and others, 1960-1998). 2. REM sleep “functions to develop the nervous system,” especially in the immature animal (Roffwarg, Muzio, and Demunt, 1966). 3. REM sleep functions in the “repair, reorganization, and formation of new connections in the cortex…” (Hartmann, 1973).