What Dreaming can Reveal about Cognitive and Brain Functions During Sleep? A Lexico-Statistical Analysis of Dream Reports
Study at a glance
AI-extracted from the abstract| Characteristics | Observational study |
|---|---|
| Population | Dream reports from three datasets and a 15-month dream diary from one individual |
| Duration | 15-month dream diary for one individual |
| Topics | Dreaming |
| Key findings | The same clusters of dream reports, each characterized by a predominant cognitive category (e.g., recent memory, visuo-spatial processing, verbal activity, reasoning, emotions), were consistently found across three datasets. In a 15-month dream diary, the proportion of these clusters remained stable over time. |
Abstract
Multidimensional statistical procedures were used to analyze three corpuses of dream reports on the basis of their word content, automatically and without any a priori coding of their meaning. The analyses revealed that the same clusters of dream reports were found consistently in all three datasets. Each cluster of dream content was characterized by a specific predominant cognitive category such as recent memory, visuo-spatial processing, verbal activity, reasoning, or emotions. In addition, the analysis of a 15-months dream diary from the same individual showed that the proportion of different clusters of dreams remained stable over time. We also show that the identification of these well-defined and common cognitive characteristics in dream reports could provide important insights into the processing of information within specialized brain regions during sleep. In conclusion, dream reports contain valuable information about the cognitive processes and brain functions that participate to their generation.
Comparable studies
Other observational and cohort studies on dreaming, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Lucid Dreaming: a State of Consciousness with Features of Both Waking and Non-Lucid Dreaming Student volunteers trained to become lucid and signal lucidity with horizontal eye... | 2009 | Observational study | n = 6 |
| Nightmare Prevalence, Nightmare Distress, and Self-Reported Psychological Disturbance Young adults with a mean age of 20 years | 2002 | Prospective observational study | n = 116 |
| Long-term effects of extreme situational stress on sleep and dreaming Survivors of traumatic events who complained of sleep disturbances, compared with... | 1987 | Case-control study | n = 11 |
| The relationship of nightmare frequency and nightmare distress to well‐being Adults who reported dreams | 2004 | Observational cohort | n = 147 |
| The prevalence of nightmares and their independence from anxiety. Undergraduates | 1990 | Observational study using daily dream logs | n = 220 |
Citations in the library
Cited by 8
- Sleep and dreaming are for important matters Frontiers in Psychology 2013
- The Language of Dreams: Application of Linguistics-Based Approaches for the Automated Analysis of Dream Experiences Clocks & Sleep September 19, 2021
- Mapping dreams in a computational space: A phrase-level model for analyzing Fight/Flight and other typical situations in dream reports. Consciousness and Cognition October 27, 2022
- Correlates of Dream Recall: Implications for Confabulation Imagination, Cognition and Personality October 1, 2014
- Digital dream analysis: a revised method. Consciousness and Cognition October 1, 2014
and 3 more in the library
Cites 9
- Cognitive Aspects of Mental Activity during Sleep The American Journal of Psychology 1991
- A historical loop of one hundred years: Similarities between 19th century and contemporary dream research. Dreaming March 1, 2000
- Are life episodes replayed during dreaming? Trends in Cognitive Sciences August 1, 2003
- The cognitive neuroscience of sleep: neuronal systems, consciousness and learning. Nature Reviews Neuroscience September 2002
- Sleep, learning, and dreams: off-line memory reprocessing. Science November 2, 2001
and 4 more in the library