| Literature DB >> 5530984 |
Abstract
Pigeons responding for food on fixed-ratio reinforcement schedules attacked live target birds when the ratio value was increased, but not when the value was decreased. The frequency of attacks peaked several days after ratio value change, and then gradually decreased to an original level.Entities:
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Year: 1970 PMID: 5530984 PMCID: PMC1333738 DOI: 10.1901/jeab.1970.14-309
Source DB: PubMed Journal: J Exp Anal Behav ISSN: 0022-5002 Impact factor: 2.468