Dream mechanisms: Is REM sleep indispensable for dreaming?

  title={Dream mechanisms: Is REM sleep indispensable for dreaming?},
  author={T. Takeuchi},
  journal={Sleep and Biological Rhythms},
  • T. Takeuchi
  • Published 2005
  • Psychology
  • Sleep and Biological Rhythms
This article aims to overview briefly major arguments about dream generation from the point of view of the pros and cons of the main thesis that rapid eye movement (REM) sleep is indispensable for dreaming. The methodological issues observed in empirical dream research are also discussed. The evidence, as seen in phenomenological corroboration and anatomical and neurocognitive findings specific to REM sleep, appears to support the contribution of REM mechanisms to dream experiences. As a… Expand
Les rêves durant la grossesse : étude de leur nature et de leur rôle prédictif dans l’adaptation psychologique à la maternité
According to many perinatal health care professionals, dreams are more frequent and disturbed during pregnancy. Some suggest that in being more vivid, realistic and impactful than during any otherExpand
Testing the factorial structure of the Dream Intensity Scale.
The Dream Intensity Scale (DIS) is a questionnaire developed for assessing the subjective magnitude of dream experiences. The factorial structure of the DIS measurement model, which was built uponExpand


Dreaming and REM sleep are controlled by different brain mechanisms
  • M. Solms
  • Medicine, Psychology
  • Behavioral and Brain Sciences
  • 2000
These findings suggest that the fore brain mechanism in question is the final common path to dreaming and that the brainstem oscillator that controls the REM state is just one of the many arousal triggers that can activate this forebrain mechanism. Expand
Dreaming: A Neurocognitive Approach
Abstract The studies reported in the following articles are aimed at providing a comprehensive, detailed, and quantitative picture of cognition in human dreaming. Our main premises are that waking,Expand
Intrinsic dreams are not produced without REM sleep mechanisms: evidence through elicitation of sleep onset REM periods
Although ‘dreaming’ may occur during both REM and NREM periods as previous researchers have suggested, the dreams obtained from these distinct periods differ significantly in their quantitative and qualitative aspects and are likely to be produced by different mechanisms. Expand
Mind and consciousness during sleep
  • M. Bosinelli
  • Medicine, Psychology
  • Behavioural Brain Research
  • 1995
Experimental data suggest that consciousness, interpreted as awareness, can be present along the whole sleep/dream process, even if many modifications of meta-awareness and of self-awareness are possible. Expand
The brain as a dream state generator: an activation-synthesis hypothesis of the dream process.
The authors suggest that the automatically activated forebrain synthesizes the dream by comparing information generated in specific brain stem circuits with information stored in memory. Expand
Dreaming and the brain: Toward a cognitive neuroscience of conscious states
A three-dimensional model with specific examples from normally and abnormally changing conscious states of REM sleep dreaming is presented, suggesting that there are isomorphisms between the phenomenology and the physiology of dreams. Expand
Slow wave and REM sleep mentation.
The collected observations might support the tentative hypothesis that dreaming is a continuous process, which is not unique to REM sleep, and different levels of engagement of the cognitive system are responsible for the SWS-REM differences that were detected. Expand
Dreaming in the Late Morning: Summation of REM and Diurnal Cortical Activation
The results suggest that the major determinant of vivid visual imagery and enhanced cognitive activity during sleep is a pattern of subcortical and cortical activation that is common to both the REM phase of the REM-NREM cycle and the activated phase ofThe 24-h diurnal wake-sleep cycle. Expand
Cognitive aspects of mental activity during sleep.
The findings are interpreted as supporting the hypothesis that the same cognitive mechanisms operate, at different levels of engagement, in dream generation rather than the hypothesis of multiple dream-generation systems dependent upon the physiological characteristics of the various sleep stages. Expand
Functional neuroanatomy of human rapid-eye-movement sleep and dreaming
A group study of seven subjects who maintained steady REM sleep during brain scanning and recalled dreams upon awakening shows that regional cerebral blood flow is positively correlated with REM sleep in pontine tegmentum, left thalamus, both amygdaloid complexes, anterior cingulate cortex and right parietal operculum. Expand