Dreaming and hallucinations - continuity or discontinuity? Perspectives from dementia with Lewy bodies.
Daniel Collerton, Elaine K. Perry
Consciousness and Cognition December 2011 DOI: 10.1016/j.concog.2011.03.024 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Theoretical or philosophical paper Peer reviewed |
|---|---|
| Topics | Dreaming |
| Key points | Argues that hallucinations and dreaming lack a simple correspondence: differences in visual phenomenology may reflect varying visual context acting on a shared mechanism, while cholinergic, dopaminergic, and serotonergic changes during sleep and in Lewy body dementia hallucinations suggest different, potentially opposite, neurochemical profiles. The authors propose that dreaming may have more convincing parallels with delusional states than with hallucinations. |
Abstract
Comparing the phenomenology, neurochemical pathology, and psychopharmacology of hallucinations and dreaming is limited by the available data. Evidence to date reveals no simple correspondence between the two states. Differences in the phenomenology of visual hallucinations and the visual component of dreams may reflect variations in visual context acting on the same underlying mechanism - the minimal visual input during dreaming contrasts with the more substantial perceived context in hallucinations. Variations in cholinergic, dopaminergic and serotonergic neurotransmitter function during sleep and during hallucinations in Lewy body dementias, together with relevant drug effects suggest that, on the whole, different, potentially opposite, changes characterise the two states. A similar analysis of other psychotic features in Lewy body dementia and other disorders suggests that, in contrast to hallucinations, there may be more convincing parallels between dreaming and delusional states.
Comparable studies
Other theoretical and historical papers on dreaming, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Dreaming: a conceptual framework for philosophy of mind and empirical research | 2016 | Theoretical or philosophical paper | |
| Metaphor and hyperassociativity: the imagination mechanisms behind emotion assimilation in sleep and dreaming | 2015 | Theoretical or philosophical paper | |
| Varieties of Lucid Dreaming Experience | 2000 | Theoretical or philosophical paper | |
| Experimental Research on Dreaming: State of the Art and Neuropsychoanalytic Perspectives | 2011 | Theoretical or philosophical paper | |
| The Neurobiology of Consciousness: Lucid Dreaming Wakes Up | 2009 | Theoretical or philosophical paper |
Citations in the library
Cited by 8
- A phenomenology of meditation-induced light experiences: traditional buddhist and neurobiological perspectives Frontiers in Psychology 2014
- Insight and Dissociation in Lucid Dreaming and Psychosis Frontiers in Psychology November 12, 2018
- The bizarreness and reality of dreams Chinese Science Bulletin December 19, 2017
- Differentiating Oneiric Stupor in Agrypnia Excitata From Dreaming Disorders. Frontiers in Neurology November 12, 2020
- What Is the Link Between Hallucinations, Dreams, and Hypnagogic-Hypnopompic Experiences? Schizophrenia Bulletin June 29, 2016
and 3 more in the library
Cites 7
- New Horizons in the Neuroscience of Consciousness Advances in Consciousness Research October 28, 2010
- The visual unconscious Advances in Consciousness Research October 28, 2010
- Scopolamine prevents dreams during general anesthesia. Anesthesiology May 2007
- The cognitive neuroscience of sleep: neuronal systems, consciousness and learning. Nature Reviews Neuroscience September 2002
- SSRI treatment suppresses dream recall frequency but increases subjective dream intensity in normal subjects. Journal of Sleep Research June 1, 2001
and 2 more in the library