TY - JOUR
T1 - A runs-test algorithm
T2 - contingent reinforcement and response run structures.
AU - Hachiga, Yosuke
AU - Sakagami, Takayuki
N1 - Copyright:
Copyright 2018 Medline is the source for the citation and abstract of this record.
PY - 2010/1
Y1 - 2010/1
N2 - Four rats' choices between two levers were differentially reinforced using a runs-test algorithm. On each trial, a runs-test score was calculated based on the last 20 choices. In Experiment 1, the onset of stimulus lights cued when the runs score was smaller than criterion. Following cuing, the correct choice was occasionally reinforced with food, and the incorrect choice resulted in a blackout. Results indicated that this contingency reduced sequential dependencies among successive choice responses. With one exception, subjects' choice rule was well described as biased coin flipping. In Experiment 2, cuing was removed and the reinforcement criterion was changed to a percentile score based on the last 20 reinforced responses. The results replicated those of Experiment 1 in successfully eliminating first-order dependencies in all subjects. For 2 subjects, choice allocation was approximately consistent with nonbiased coin flipping. These results suggest that sequential dependencies may be a function of reinforcement contingency.
AB - Four rats' choices between two levers were differentially reinforced using a runs-test algorithm. On each trial, a runs-test score was calculated based on the last 20 choices. In Experiment 1, the onset of stimulus lights cued when the runs score was smaller than criterion. Following cuing, the correct choice was occasionally reinforced with food, and the incorrect choice resulted in a blackout. Results indicated that this contingency reduced sequential dependencies among successive choice responses. With one exception, subjects' choice rule was well described as biased coin flipping. In Experiment 2, cuing was removed and the reinforcement criterion was changed to a percentile score based on the last 20 reinforced responses. The results replicated those of Experiment 1 in successfully eliminating first-order dependencies in all subjects. For 2 subjects, choice allocation was approximately consistent with nonbiased coin flipping. These results suggest that sequential dependencies may be a function of reinforcement contingency.
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U2 - 10.1901/jeab.2010.93-61
DO - 10.1901/jeab.2010.93-61
M3 - Article
C2 - 20676268
AN - SCOPUS:78149481951
VL - 93
SP - 61
EP - 80
JO - Journal of the Experimental Analysis of Behavior
JF - Journal of the Experimental Analysis of Behavior
SN - 0022-5002
IS - 1
ER -