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A signal-detection-theory representation of normal and hallucinatory perception

Published online by Cambridge University Press:  22 December 2005

Igor Dolgov*
Affiliation:
Department of Psychology, Arizona State University, Tempe, AZ85282-1104http://www.public.asu.edu/%7Emmcbeath/
Michael K. McBeath*
Affiliation:
Department of Psychology, Arizona State University, Tempe, AZ85282-1104http://www.public.asu.edu/%7Emmcbeath/

Abstract

Collerton et al.'s Perception and Attention Deficit (PAD) model argues that all recurrent complex visual hallucinations (RCVH) result from maladaptive, deficient sensory and attentional processing. We outline a constructivist-based representation of perception using signal detection theory, in which hallucinations are modeled as false alarms when confirmational perceptual information is lacking. This representation allows for some individuals to have RCVH due to a criterion shift associated with attentional proficiency that results in an increased awareness of the environment.

Type
Open Peer Commentary
Copyright
Copyright © Cambridge University Press 2005

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References

Notes

1. The cost of experiencing RCVH must be outweighed by the benefit of an increased number of veridical percepts.