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THE RELATIVE AVERSIVENESS OF SIGNALLED VS UNSIGNALLED AVOIDANCE
Author(s) -
Badia Pietro,
Culbertson Stuart,
Lewis Paul
Publication year - 1971
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.1971.16-113
Subject(s) - changeover , stimulus (psychology) , psychology , lever , audiology , reinforcement , developmental psychology , social psychology , cognitive psychology , medicine , computer science , telecommunications , physics , quantum mechanics , transmission (telecommunications)
Subjects avoided shock by pressing on one lever under an unsignalled condition, but by pressing a separate lever they changed the condition to signalled avoidance for 1‐min periods. Signalled avoidance periods were identified by a correlated stimulus. All eight subjects responded to change the unsignalled schedule to a signalled one. Once contact with signalled avoidance was made, subjects continued responding to remain in that condition. Other tests showed that changeover responding was greater when the correlated stimulus was presented without the signal than when the signal was presented without the correlated stimulus. An analysis based upon shock and shock‐free periods is presented.