EXPECTING DIFFERENT CATEGORIES AT DIFFERENT LOCATIONS AND SPATIAL SELECTIVE ATTENTION
EXPECTING DIFFERENT CATEGORIES AT DIFFERENT LOCATIONS AND SPATIAL SELECTIVE ATTENTION
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DOI：
10.1080/02724988743000033
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发表时间：
1987-02-01
期刊：
影响因子：
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通讯作者：
LAMBERT, A
中科院分区：
文献类型：
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作者：
LAMBERT, A
据报道，一项实验测试了空间选择性注意力像聚光灯光束一样运作的想法。受试者对可能出现在上部或下部显示位置的字母数字字符做出快速方向判断。字母（p = 0.8）倾向于出现在一个位置，而数字倾向于出现在另一位置。预先考虑了字母数字类别 (p = 0.8)。有提示的项目的响应时间比无提示的项目更快。对于提示项目，受试者在提示项目的可能位置更快。对于未提示的项目，情况正好相反，在未提示的项目的可能位置处响应速度更快。因此，位置选择性反映了每个类别的位置概率，无论刺激类别的短期预期如何。这些数据与空间选择性注意的简单聚光灯视图不兼容。考虑了其他解释，包括修改后的两级聚光灯模型。
An experiment is reported testing the idea that spatial selective attention operates like the beam of a spotlight. Subjects made speeded orientation judgements to alphanumeric characters that could appear at an upper or lower display location. Letters tended (p = 0.8) to occur at one location, while digits tended to occur at the other. Alphanumeric category were precued (p = 0.8). Response times were faster for cued than uncued items. For cued items subjects were faster at the likely location for a cued item. For uncued items this was reversed, with faster responding at the likely location for an uncued item. Hence, location selectivity reflected location probability for each category regardless of short-term expectancy concerning stimulus category. These data are incompatible with a simple spotlight view of spatial selective attention. Alternative explanations, including a modified two-stage spotlight model, were considered.