A Failure To Transfer Control Of Keypecking From Food Reinforcement To Escape From And Avoidance Of Shock
Bulletin Of The Psychonomic Society
Three pigeons, trained to key peck for food reinforcement, were shifted to a procedure in which keypecks avoided or escaped electric shocks. Keypecking essentially ceased by the sixth session on this procedure. After 24 sessions of food reinforcement for pecking on a variable interval (VI) schedule, the avoidance-escape procedure was reintroduced, and keypecking ceased by the fourth session. Another period of VI food reinforcement, followed by another period of avoidance-escape, produced the same result. The same value of shock employed in the avoidance-escape procedure successfully eliminated the keypecking that produced it (punishment). These results supportBolles’s (1970) discussion of species-specific defense reactions and are consistent with other failures to transfer control of responding from one reinforcer to another.
Barry Schwartz and Geoffrey R. Coulter , '72.
"A Failure To Transfer Control Of Keypecking From Food Reinforcement To Escape From And Avoidance Of Shock".
Bulletin Of The Psychonomic Society.
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