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Hallucination, imagery, dreaming: reassembling stimulus-independent perceptions based on Edmund Parish's classic misperception framework

Flavie Waters, Joseph M Barnby, Jan Dirk Blom

Philosophical transactions of the Royal Society of London. Series B, Biological sciences December 13, 2020 DOI: 10.1098/rstb.2019.0701 (opens in new tab)

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AI-extracted from the abstract
Characteristics Review Peer reviewed
Topics Dreaming
Keywords Perception Stimulus psychology Phenomenology philosophy Mental image Cognitive psychology Cognition Cognitive science Epistemology
Citations 26
Key findings Hallucinations, mental imagery, and dreams share phenomenological and neural similarities that can be integrated into a common framework of stimulus-independent perception.

Abstract

Within the broad field of human perception lies the category of stimulus-independent perceptions, which draws together experiences such as hallucinations, mental imagery and dreams. Traditional divisions between medical and psychological sciences have contributed to these experiences being investigated separately. This review aims to examine their similarities and differences at the levels of phenomenology and underlying brain function and thus reassemble them within a common framework. Using Edmund Parish's historical work as a guiding tool and the latest research findings in the cognitive, clinical and computational sciences, we consider how different perspectives may be reconciled and help generate novel hypotheses for future research. This article is part of the theme issue 'Offline perception: voluntary and spontaneous perceptual experiences without matching external stimulation'.

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