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THE EFFECT OF INFORMATIONAL FEEDBACK ON SIZE JUDGEMENTS OF SCHIZOPHRENIC PATIENTS
Author(s) -
STANNARD R.,
SINGER G.,
OVER R.
Publication year - 1966
Publication title -
british journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.536
H-Index - 92
eISSN - 2044-8295
pISSN - 0007-1269
DOI - 10.1111/j.2044-8295.1966.tb01033.x
Subject(s) - psychology , perception , audiology , presentation (obstetrics) , cognitive psychology , social psychology , medicine , radiology , neuroscience
This experiment studied visual size judgements of hospitalized schizophrenic patients and normal controls under two conditions of presentation. Sixteen patients and sixteen normal volunteers were required to match for size a graded series of disks at a distance of 14 ft 6 in. with a 4 in. standard at a distance of 5 ft 6 in. Both groups were tested under two conditions: verbal instructions, and verbal instructions with information feedback. The results showed a reduction in error for schizophrenics under the feedback condition. These findings are discussed with reference to the research methodology of procedures which are supposed to provide relative measures of the perceptual capacities of different diagnostic groups.