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A SERIAL AFTERIMAGE EXPERIMENT IN CLINICAL DIAGNOSTICS
Author(s) -
Smith Gudmund J. W.,
Kragh Ulf
Publication year - 1967
Publication title -
scandinavian journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 72
eISSN - 1467-9450
pISSN - 0036-5564
DOI - 10.1111/j.1467-9450.1967.tb01374.x
Subject(s) - afterimage , psychology , achromatic lens , anxiety , audiology , optics , psychiatry , physics , medicine , artificial intelligence , image (mathematics) , computer science
Successive change in the size of negative afterimages repeatedly projected upon a screen was measured in a group of 87 psychiatric patients and a control group of 27. Primitive‐hysteroid subjects were characterized by fluctuating serials, compulsives by small size changes of short duration, anxiety cases by progressively growing, dark, achromatic images, and psychotics by sudden contractions to size‐constant or concrete images. A tentative finding for depressives was also presented and discussed.