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BEHAVIORAL CONTRAST WITH MULTIPLE POSITIVE AND NEGATIVE STIMULI ON A CONTINUUM 1
Author(s) -
Farthing G. William
Publication year - 1974
Publication title -
journal of the experimental analysis of behavior
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 61
eISSN - 1938-3711
pISSN - 0022-5002
DOI - 10.1901/jeab.1974.22-419
Subject(s) - psychology , audiology , reinforcement , contrast (vision) , discrimination learning , stimulus (psychology) , social psychology , cognitive psychology , physics , optics , medicine
After an initial period of nondifferential training, six pigeons were trained on a go/no‐go discrimination involving 12 line tilts from vertical clockwise to horizontal. Responses to the first six tilts (positive stimuli) were reinforced on a variable‐interval one‐minute schedule, whereas responses to the other six tilts (negative stimuli) were extinguished. During the first several discrimination sessions, the highest response rate was typically to one of the positive stimuli that was relatively close to the negative stimuli or at an intermediate distance, rather than to one of the positive stimuli most distant from the negative stimuli. This effect decreased with extended training up to 50 or 80 sessions.