Size Constancy and Cue Responsiveness in Psychosis

Bibliographic Data

ID9620757
AuthorsVernon Hamilton (Springfield Hospital, corresponding author)
Year1963
Volume54
Issue1
Pages25-39
Publication date1963-02-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueBritish Journal of Psychology (JOURNAL)
Journal identifiersISSN: 0007-1269 • E-ISSN: 2044-8295
PublisherWiley (PUBLISHER • GB)
DOI10.1111/j.2044-8295.1963.tb00859.x
PMID13952350
OpenAlexW2008225745
LanguageEN
Citations received3

An experiment is reported designed to re‐assess size constancy behaviour and some of its co‐relatives in psychotic and non‐psychotic subjects. The predictive basis of reduced size constancy for schizophrenic and non‐schizophrenic psychotic patients was found in the clinical evidence characterizing these conditions and in Piaget's genetic theories of cognitive development. It was postulated that there would be no significant difference in size constancy between different psychotic groups or between different non‐psychotic groups, but that the psychotic groups would show significantly reduced size constancy compared with the non‐psychotic sample. It was further postulated that low size constancy would be positively related to reduced cue responsiveness operationally defined in several different ways. Size constancy and cue responsiveness in relation to familiar and non‐familiar objects are assessed. The results are taken to provide a considerable degree of support for the hypotheses, and are explained in terms of peripheral as well as central mechanisms. The findings do not support previous evidence suggesting a causal relationship between low size constancy and under‐estimation of distance

Cognition · Cognitive psychology · Developmental psychology · Perception · Psychiatry · Psychosis · Sample size determination · Schizophrenia (object-oriented programming) · Statistics · Subjective constancy · Neuroscience · Philosophy and History of Science · Psychology

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