Suppression of response rates in variable‐interval schedules by a concurrent schedule of reinforcement
Suppression of response rates in variable‐interval schedules by a concurrent schedule of reinforcement
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通过并发强化计划抑制可变间隔计划中的反应率
DOI：
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发表时间：
1977
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影响因子：
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通讯作者：
C. Bradshaw
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文献类型：
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作者：
C. Bradshaw
Herrnstein方程描述了变间隔时程中加固频率和响应率之间的关系，该方程预测，同时引入加固源将增加获得半最大响应率所需的加固频率，而不影响理论最大响应率本身。这一预测在目前的实验中得到了验证。在第一阶段中，四只大鼠被训练按不同间隔时间的杠杆(杠杆A)，使用一定范围的强化频率。在第二阶段，引入了第二个杠杆(杠杆B)；杠杆B上的响应总是以相同的频率增强，而杠杆A响应的强化频率是不同的。在第一阶段，从所有四只大鼠获得的数据都非常符合Herrnstein方程。比较第一阶段和第二阶段的绝对反应率，发现基于Herrnstein方程的预测得到了定性的证实，尽管第二阶段的反应抑制程度与预测的反应抑制程度之间存在一些定量的差异。
Herrnstein's equation, which describes the relationship between reinforcement frequency and response rate in variable-interval schedules predicts that the introduction of a concurrent source of reinforcement will increase the reinforcement frequency needed to obtain the half-maximal response rate, without affecting the theoretical maximal response rate itself. This prediction was tested in the present experiment. During Phase I four rats were trained to press a lever (lever A) in variable interval schedules, using a range of reinforcement frequencies. During Phase II, a second lever (lever B) was introduced; responses on lever B were always reinforced at the same frequency, while the reinforcement frequency for lever A responses was varied. During Phase I the data obtained from all four rats conformed closely to Herrnstein's equation. Comparing the absolute response rates in Phase I and Phase II it was found that the predictions based on Herrnstein's equation were qualitatively confirmed, although there was some quantitative discrepancy between the predicted and actual degree of response suppression during Phase II.