Three pigeon dyads were exposed to a two-component multiple schedule comprised of two tandem variable-interval 30-s interresponse time (IRT) > 3-s schedules in the presence of different stimuli. Pecks to keys by both pigeons of a dyad occurring within 500 ms of one another were required for reinforcement under one tandem schedule (the coordination component), and such coordinated responses were not required under the other (the control component). The terminal link of each schedule ensured that the reinforced coordination response was an IRT > 3 s. Rates of coordinated IRTs > 3 s and total rates of coordinated responses (composed of IRTs > 3 s and IRTs ≤ 3 s) were higher in the coordination components than in either of two different control components in which coordination was not required for reinforcement. This difference in coordinated responses in the presence and absence of the coordination requirement under stimulus control transitorily deteriorated and then was reestablished when the relation between the stimulus and the coordination contingency or its absence was reversed. The results show coordinated responding to function as a discriminated social operant.

中文翻译：

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社会操作者的刺激控制

在存在不同刺激的情况下，三只鸽子接受由两个串联可变间隔 30 秒交互反应时间 (IRT) > 3 秒计划组成的双组分多重计划。在一个串联计划（协调部分）下，需要在 500 毫秒内发生的一对鸽子的两只鸽子啄键来加强，而在另一个计划（控制部分）下不需要这种协调反应。每个调度的终端链路确保强化协调响应是 IRT > 3 秒。协调组件中协调 IRT > 3 s 的比率和协调反应总比率（由 IRT > 3 s 和 IRT ≤ 3 s 组成）高于不需要协调进行强化的两个不同控制组件中的任何一个。在刺激控制下，在存在和不存在协调要求的情况下，协调反应的这种差异会暂时恶化，然后当刺激与协调意外事件或不存在协调意外事件之间的关系逆转时，协调反应的差异会重新建立。结果显示，作为受歧视的社会操作者，对功能的协调反应。