Abstract:
:The information hypothesis of conditioned reinforcement predicts that a stimulus that "reduces uncertainty" about the outcome of a trial will acquire reinforcing properties, even when the stimulus reliably predicts nonreinforcement. Four pigeons' key pecks produced one of two 5-sec stimuli with 0.50 probability according to a discriminated variable-interval schedule. One stimulus was followed by reinforcement; a second stimulus was followed by blackout. To the same extent, therefore, both stimuli reduced uncertainty about the possibility that food would arrive at the termination of the schedule interval. When a second key in the chamber was lighted, each peck on it could produce the stimulus preceding reinforcement, the stimulus preceding nonreinforcement, a novel stimulus, or no stimulus, across separate conditions. The stimulus preceding food maintained responding at substantial levels on the second, stimulus-producing, key. Such responding was not maintained by other stimuli. These data, replicated when the stimuli were reversed on the variable-interval schedule, do not support the prediction that uncertainty-reducing stimuli are necessarily conditioned reinforcers.
journal_name
J Exp Anal Behavjournal_title
Journal of the experimental analysis of behaviorauthors
Katz HNdoi
10.1901/jeab.1976.26-45subject
Has Abstractpub_date
1976-07-01 00:00:00pages
45-56issue
1eissn
0022-5002issn
1938-3711journal_volume
26pub_type
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journal_title:Journal of the experimental analysis of behavior
pub_type: 杂志文章
doi:10.1901/jeab.1971.16-167
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pub_type: 杂志文章
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journal_title:Journal of the experimental analysis of behavior
pub_type: 杂志文章
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