加州海兔的条件性辨别学习
Conditional discrimination learning in Aplysia californica.
作者信息
Colwill R M, Absher R A, Roberts M L
机构信息
Howard Hughes Medical Institute, Columbia University, College of Physicians and Surgeons, New York, New York 10032.
出版信息
J Neurosci. 1988 Dec;8(12):4440-4. doi: 10.1523/JNEUROSCI.08-12-04440.1988.
Two experiments examined whether the relation between a conditioned stimulus (CS) and an unconditioned stimulus (US) might be brought under the control of contextual stimuli in the invertebrate Aplysia californica. Subjects received exposure to 2 different contexts. In both experiments, a tactile CS was paired with a shock US in one of those contexts. In the other context, that tactile CS was either nonreinforced (Experiment 1) or explicitly unpaired with the shock US (Experiment 2). Responding to the CS during a subsequent test was greater in the context in which that CS had been paired with the US compared with the context in which it had been nonreinforced or unpaired. These findings are discussed in terms of theories of conditional discrimination learning.
两项实验研究了在无脊椎动物加州海兔中，条件刺激（CS）与非条件刺激（US）之间的关系是否可能受情境刺激的控制。实验对象暴露于两种不同的情境中。在两个实验中，在其中一种情境下，触觉条件刺激与电击非条件刺激配对。在另一种情境下，该触觉条件刺激要么未得到强化（实验1），要么与电击非条件刺激明确不配对（实验2）。与该条件刺激未得到强化或未配对的情境相比，在随后的测试中，条件刺激在曾与非条件刺激配对的情境下引发的反应更大。本文根据条件辨别学习理论对这些发现进行了讨论。
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