Preference for fixed-interval schedules of reinforcement.
Preference for fixed-interval schedules of reinforcement.
复制标题
优先选择固定间隔的强化计划。
DOI：
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发表时间：
1970
影响因子：
2.7
通讯作者：
Peter R. Killeen
中科院分区：
文献类型：
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作者：
Peter R. Killeen
在一个双链接并发链计划中，对初始链接中的两个键中的任何一个做出响应，偶尔会产生一个终端链接，通过该键的颜色变化和另一个变暗来发出信号。根据固定的时间间隔表，对点亮的钥匙的进一步反应通过食物来加强。对于其中一个键，这个固定的间隔总是20秒，而对于另一个键，它在几周内保持在5、14、30或60秒的值。在最初的链接中，所有的鸽子响应相对更频繁的键与较短的固定间隔比匹配假设的预测。在最初的链接中的响应显示出一个大的负近因效应：鸽子对提供最后强化的关键的响应频率低于从整体响应率预测的频率。
Pigeons were trained on a two-link concurrent chain schedule in which responding on either of two keys in the initial link occasionally produced a terminal link, signaled by a change in the color of that key and a darkening of the other. Further responding on the lighted key was reinforced with food according to a fixed-interval schedule. For one of the keys, this fixed interval was always 20 sec, while for the other it was held at values of 5, 14, 30, or 60 sec for several weeks. In the initial link, all pigeons responded relatively more often on the key with the shorter fixed interval than was predicted by the matching hypothesis. Responding in the initial link showed a large negative recency effect: pigeons responded less frequently on the key that provided their last reinforcement than predicted from the overall response rates.