Symmetrical and asymmetrical coding of food and no-food samples in delayed matching in pigeons
Symmetrical and asymmetrical coding of food and no-food samples in delayed matching in pigeons
复制标题
鸽子延迟匹配中食物和非食物样本的对称和不对称编码
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
D. S. Grant
中科院分区：
文献类型：
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作者：
D. S. Grant
这一发现在有食物样本的实验中比没有食物样本的实验中记忆功能下降得更快。这一结果也适用于不以享乐为对比，但以存在与不存在事件为特征的样本。这些结果与非对称编码模型一致，该模型认为(a)不编码无食物样本，(b)对与无食物样本相关的比较的反应是默认的，(c)默认反应被由食物呈现激活的代码在工作记忆中的存在所覆盖
The finding that retention functions decrease more rapidly on trials initiated by a food sample than on trials initiated by a no-food sample was replicated. This result was also obtained for samples that do not contrast hedonically , but that are characterized by the presence versus absence of an event. These results are consistent with an asymmetrical-coding model in which it is held that (a) a no-food sample is not coded, (b) responding to the comparison associated with a no-food sample occurs as a default, and (c) the default response is overridden by the presence in working memory of a code activated by the presentation of food