在时间等分任务中,通过差异支付的偏置性能。

IF 1.3 4区 心理学
Renata Cambraia, Marco Vasconcelos, Jérémie Jozefowiez, Armando Machado
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引用次数: 3

摘要

我们研究了差异报酬如何影响时间歧视。在时间对分任务中,鸽子学会了在短样本后选择一个键,在长样本后选择另一个键。当提供一系列中间样本时,他们产生了一个以位置(偏差)参数和尺度(灵敏度)参数为特征的高斯心理测量函数。当一个键比另一个键产生更多的强化物时,位置参数就会发生变化,鸽子会倾向于选择更丰富的键。然后,我们在一个长操作室中重现了等分任务,选择键相隔很远,并跟踪了样本中鸽子的运动模式。这些模式是高度刻板的——在长样本试验中,鸽子在样本开始时接近短键,在那里停留一段时间,然后转向长键。当支付概率不同时,出发时间的分布也有偏差。此外,时间控制可能减少,而位置控制可能增加。没有发现时间敏感性变化的证据。结果与考虑了偏差效应和刺激控制竞争的时间模型一致。(PsycINFO数据库记录(c) 2019 APA,版权所有)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Biasing performance through differential payoff in a temporal bisection task.

We investigated how differential payoffs affect temporal discrimination. In a temporal bisection task, pigeons learned to choose one key after a short sample and another key after a long sample. When presented with a range of intermediate samples they produced a Gaussian psychometric function characterized by a location (bias) parameter and a scale (sensitivity) parameter. When one key yielded more reinforcers than the other, the location parameter changed, with the pigeons biasing their choices toward the richer key. We then reproduced the bisection task in a long operant chamber, with choice keys far apart, and tracked the pigeons' motion patterns during the sample. These patterns were highly stereotypical-on the long sample trials, the pigeons approached the short key at sample onset, stayed there for a while, and then departed to the long key. The distribution of departure times also was biased when the payoff probabilities differed. Moreover, it is likely that temporal control decreased while control by location increased. No evidence was found of changes in temporal sensitivity. The results are consistent with models of timing that take into account bias effects and competition of stimulus control. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

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来源期刊
自引率
23.10%
发文量
0
审稿时长
>12 weeks
期刊介绍: The Journal of Experimental Psychology: Animal Learning and Cognition publishes experimental and theoretical studies concerning all aspects of animal behavior processes.
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