The conditioned suppression technique (Estes and Skinner, 1941) was employed to study the effects of partial-shock reinforcement in the goldfish. Lever-pressing behavior of hungry goldfish was suppressed in the presence of a flashing light that had been previously paired with electric shocks. Fish that acquired the suppression under 50% and 100% shock-reinforcement, respectively, were subjected to repeated presentations of the flashing light alone. This procedure revealed a more rapid extinction of the suppressed behavior in the 50% than in the 100% shocked group. The finding was compared with those from other experiments and possible reasons for the differences were examined.
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机译：采用条件抑制技术（Estes and Skinner，1941）来研究部分冲击对金鱼的增强作用。在先前与电击配对的闪光灯的存在下，饥饿的金鱼的杠杆按压行为受到抑制。分别在50％和100％的冲击增强下获得抑制作用的鱼要单独重复闪光。与100％休克组相比，该程序显示50％的受抑制行为更快消失。将该发现与其他实验的发现进行了比较，并研究了差异的可能原因。
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