Within-session modulation of timed anticipatory responding: When to start responding
Within-session modulation of timed anticipatory responding: When to start responding
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DOI：
10.1016/j.beproc.2010.06.012
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发表时间：
2010-10-01
影响因子：
1.3
通讯作者：
Brunner, Dani
中科院分区：
文献类型：
--
作者：
Balci, Fuat;Ludvig, Elliot A.;Brunner, Dani
峰值法被广泛应用于动物间歇时间的研究。从峰值响应中可以推导出多个定时措施。这些测量通常表现为许多试验的平均值，基于隐含的假设，即在整个过程中峰值响应是稳定的。我们对45只老鼠进行了30秒的固定间隔训练，通过观察在训练过程中反应峰值是否发生变化来验证这一假设。除了停止时间外，所有常见的峰值响应度量都在会话过程中发生了变化：开始时间增加，响应速率和传播减少，而且，尽管不太可靠，峰值时间也向右移动。这些结果与动机解释一致，即增加的满足感导致观察到的行为特征，即在会话内调节时间预期反应。(c) 2010 Elsevier B.V.保留所有权利。
The peak procedure is widely used in the study of interval timing with animals. Multiple timing measures can be derived from peak responding. These measures are typically presented as averages across many trials based on the implicit assumption that peak responding is stable throughout the session. We tested this assumption by examining whether peak responding changed over the course of the session in 45 mice that were trained on a fixed-interval 30-s schedule. All common measures of peak responding, except stop times, changed over the course of the session: start times increased, response rates and spreads decreased, and, although less reliably, peak times also shifted rightward. These results are congruent with a motivational interpretation, whereby increased satiety leads to the observed behavioral signature of within-session modulation of timed anticipatory responding. (c) 2010 Elsevier B.V. All rights reserved.