Premium
THE INTERACTION EFFECTS OF CS INTENSITY AND CS‐UCS INTERVAL IN HUMAN EYELID CONDITIONING
Author(s) -
FISHBEIN HAROLD D.,
REES JANET F.
Publication year - 1969
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.2044-8295.1969.tb01207.x
Subject(s) - conditioning , psychology , intensity (physics) , audiology , interval (graph theory) , optics , statistics , mathematics , physics , combinatorics , medicine
The joint effects of low CS intensity and CS‐UCS interval (ISI) on human eyelid conditioning performance were investigated. Five paid subjects were run in 36 test sessions, in a within‐subjects design in which six CS intensities were varied orthogonally to three CS durations. Conditioning performance was measured by the percentage of conditioned responses corrected for spontaneous blinks, and by d ' CR , a measure based upon a signal detection analysis. Both measures yielded similar results which showed a continued shift toward longer optimum ISIs with decreases in CS intensity, i.e. the optimum ISI shifted from 0·5 sec. to 2·0 sec. A partial explanation of this finding was based on a consideration of neurophysiological and reaction‐time studies.