FREE-OPERANT CHOICE BEHAVIOR - MOLECULAR ANALYSIS

被引:8
作者
NAVARICK, DJ
机构
[1] California State University, Fullerton
关键词
changeover delay; choice behavior; concurrent chained schedules; interresponse time; key peck; pigeons; sequential patterning;
D O I
10.1901/jeab.1979.32-213
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Pigeons' pecks to two concurrent initial‐link stimuli occasionally produced one of two mutually exclusive terminal links. Further responding to the terminal‐link stimulus produced food under fixed‐interval or fixed‐ratio schedules. In such concurrent chained schedules, investigators rarely use a changeover delay to control superstitious switching, although it is customary to use a changeover delay in simple concurrent schedules in which choice responses produce food directly. When terminal‐link fixed‐interval schedules were equal or similar in duration and no changeover delay was employed, conditional probabilities of choice for a schedule were found to be lower if the last choice was for that schedule than if the last choice was for the other schedule (“switching dependency”). Imposition of a changeover delay with equal or unequal terminal links produced the opposite pattern: conditional probabilities of choice for a schedule were higher if the last choice was for that schedule than if the last choice was for the other schedule. Turning off all chamber lights during the changeover delay interval attenuated these “repetition dependencies.” The results indicate that excessive switching can complicate the interpretation of data from concurrent chains much as from simple concurrent schedules, and that using blackouts to control switching may be preferable to using a changeover delay. 1979 Society for the Experimental Analysis of Behavior
引用
收藏
页码:213 / 232
页数:20
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