A reaction-time paradigm to measure reward-oriented bias in rats

Johan Lauwereyns, Regan G. Wisnewski

研究成果: Contribution to journalArticle

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The authors devised a nose-poke task with asymmetric position-reward mapping to distinguish between effects of bias and sensitivity in reaction times of rats. In all trials, the rats had to poke their noses into the hole to the left or to the right of center, corresponding to the side at which 4 lights were illuminated, while ignoring distracters on the other side. Reaction times were faster for large-reward trials than for small-reward trials. In large-reward trials, there was no influence of the number of distracters, whereas in small-reward trials, distracters produced an increase in reaction time. Analysis of reaction-time distributions according to a linear model of decision making suggests that most of the systematic variability was due to a reward-oriented bias. (PsycINFO Database Record (c) 2006 APA, all rights reserved).

元の言語英語
ページ(範囲)467-473
ページ数7
ジャーナルJournal of Experimental Psychology: Animal Behavior Processes
32
発行部数4
DOI
出版物ステータス出版済み - 10 1 2006
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Experimental and Cognitive Psychology

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