鸽子在一个多峰过程中独立地学习信号-食物间隔。

Nathaniel Rice, Randolph C Grace, Elizabeth G E Kyonka
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引用次数: 7

摘要

先前的研究表明,当信号和食物之间的多重时间关系在每次会话中不可预测地发生变化时,鸽子会快速学习这些关系(Kyonka & Grace, 2007)。本研究的目的是测试上下文时间线索(即,替代信号-食物延迟)是否能有效预测目标信号-食物延迟,从而促进目标偶然性的习得。4只鸽子在多个峰值间隔过程中做出反应,其中红色和绿色键表示单独的固定间隔(FI)时间表,并偶尔进行消光探测(峰值试验)。FIs的调度参数或求和为30s(相关条件);ρ = -1.0)或不限于总和为30s(不相关条件;ρ = 0.0)。比较两种条件下峰值试验的停止时间,结果显示情境没有影响:无论进度值是否相关,反应的时间控制都以相同的速率和相同的精度获得。这些结果表明,鸽子独立地学习了多种信号食物延迟。
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Pigeons learn signal-food intervals independently in a multiple peak procedure.

Previous research has shown rapid learning of multiple temporal relations between signals and food by pigeons when these relations are changed unpredictably each session (Kyonka & Grace, 2007). The goal of the present study was to test whether contextual temporal cues-that is, an alternative signal-food delay that was a valid predictor of a target signal-food delay-facilitated acquisition by the target contingency. Four pigeons responded in a multiple peak-interval procedure in which red and green keys signaled separate fixed-interval (FI) schedules with occasional extinction probes (peak trials). The schedule parameters of the FIs either summed to 30 s (correlated condition; ρ = -1.0) or were not restricted to sum to 30 s (uncorrelated condition; ρ = 0.0). Comparing stop times obtained from peak trials in the 2 conditions revealed no effect of context: Temporal control of responding was acquired at the same rate and with the same precision regardless of whether the schedule values were correlated. These results suggest that pigeons learn about multiple signal-food delays independently.

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>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.
期刊最新文献
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