Effect of reward probability on spatial and temporal variation.

Effect of reward probability on spatial and temporal variation.
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奖励概率对空间和时间变化的影响。

DOI:
10.1037/a0015971
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发表时间:
2010
期刊:
Journal of experimental psychology. Animal behavior processes
影响因子:
--
通讯作者:
Blaisdell,AaronP
Blaisdell,AaronP
中科院分区:
--
文献类型:
--
作者:
Stahlman,WDavid;Roberts,Seth;Blaisdell,AaronP

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Gharib、Derby 和 Roberts(2001)提出,降低奖励期望会增加响应形式的变化。我们在新的情况下测试了这条规则,并询问它是否也适用于响应位置和时间的变化。在两项离散试验中,鸽子啄食彩色圆圈作为食物。这些圆圈有 6 种可能的颜色,每种颜色都与不同的奖励概率相关。减少奖励期望不会影响啄击持续时间(形式的度量),但会增加啄击位置的水平变化和啄击间隔变化。奖励概率对啄间间隔标准差的影响比对平均啄间间隔的影响更明显(t 值更大)。来自大鼠的两个数据集具有相似的响应间期效应。(PsycINFO 数据库记录 (c) 2016 APA,保留所有权利)
Gharib, Derby, and Roberts (2001) proposed that reducing reward expectation increases variation of response form. We tested this rule in a new situation and asked if it also applied to variation of response location and timing. In 2 discrete-trial experiments, pigeons pecked colored circles for food. The circles were of 6 possible colors, each associated with a different probability of reward. Reducing reward expectation did not affect peck duration (a measure of form) but did increase horizontal variation of peck location and interpeck-interval variation. The effect of reward probability on the standard deviation of interpeck intervals was clearer (larger t value) than its effect on mean interpeck interval. Two datasets from rats had similar interresponse-interval effects.(PsycINFO Database Record (c) 2016 APA, all rights reserved)
通过奖励概率控制变异。
DOI: 10.1037/0097-7403.30.4.271
发表时间: 2004
期刊: Journal of experimental psychology. Animal behavior processes
影响因子: --
作者:
Afshin Gharib;C. Gade;S. Roberts
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