ANALYSIS OF LIGHT-INDUCED RETROACTIVE-INHIBITION IN PIGEON SHORT-TERM-MEMORY
ANALYSIS OF LIGHT-INDUCED RETROACTIVE-INHIBITION IN PIGEON SHORT-TERM-MEMORY
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DOI：
10.1037/0097-7403.4.3.219
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发表时间：
1978-01-01
期刊：
影响因子：
--
通讯作者：
GRANT, DS
中科院分区：
文献类型：
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作者：
ROBERTS, WA;GRANT, DS
在延迟匹配样本任务的整个延迟期间，室内灯光导致鸽子表现出的准确度比延迟在黑暗中度过时低得多。进行了一系列实验来检查这种光诱导的逆向抑制（RI）的可能机制。实验 1 和 2 是参数研究，其改变延迟间隔内光照的长度和点。短暂暴露在光下会产生显着的 RI，RI 程度随着曝光时间的增加而增加，并且在延迟结束时放置插值光会导致比在开始时放置的插值光更大的 RI（首尾效应）。实验 3-5 测试了旨在解释光诱导 RI 和始末效应的特定假设。知觉衰减、知觉改变和非记忆啄食假说都提供了解释，这些假说认为照明会影响在比较刺激之间进行选择时活跃的过程，但不会改变样本刺激的记忆。所有这 3 个假设均未能得到这些实验结果的支持。指出室内光导致记忆丧失的理论机制可以最好地解释光诱导 RI 的所有可用证据。
Houselight presented throughout the delay period on a delayed matching-to-sample task caused pigeons to demonstrate a much lower level of accuracy than was found when the delay was spent in darkness. A series of experiments was carried out to examine possible mechanisms responsible for this light-induced retroactive inhibition (RI). Experiments 1 and 2 were parametric investigations, which varied the length aqd point of exposure to light within the delay interval. Brief exposure to light produced significant RI, degree of RI increased as the length of exposure increased, and placement of interpolated light at the end of the delay led to greater RI than placement at the beginning (beginning-end effect). Experiments 3-5 tested specific hypotheses designed to account for light-induced RI and the beginning-end effect. The perceptual attentuation, perceptual alteration and nonmemory-pecking hypotheses all offered explanations, which held that illumination affects processes active at the time of choice between comparison stimuli but does not modify memory of the sample stimulus. All 3 of these hypotheses failed to be supported by the results of these experiments. Theoretical mechanisms which specify that houselight leads to loss of memory can best account for all of the evidence available on light-induced RI.