Directed attention prolongs the perceived duration of a brief stimulus
Directed attention prolongs the perceived duration of a brief stimulus
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DOI：
10.3758/bf03207993
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发表时间：
1998-11-01
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影响因子：
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通讯作者：
Ulrich, R
中科院分区：
文献类型：
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作者：
Mattes, S;Ulrich, R
Stelmach，Herdman，and McNeil（1994）最近提出注意刺激的知觉持续时间比不注意刺激的知觉持续时间短。相反，衰减假说（托马斯和韦弗，1975年）表明，定向注意和知觉持续时间之间的反向关系。我们进行了六个实验来检验这两个相互矛盾的假设的有效性。在所有的实验中，注意力都被引导到两个可能的刺激源之一。实验1和2采用70至270毫秒的刺激持续时间。刺激出现在视觉或听觉模态中。刺激在出席的方式被评为长于刺激在无人值守的方式。实验3使用不同的心理物理程序复制了这一发现。实验4-6表明，这一发现不仅适用于来自不同感觉模态的刺激，而且适用于出现在视野内不同位置的刺激。所有六个实验的结果支持的假设，即定向注意的知觉持续时间的刺激。
Stelmach, Herdman, and McNeil (1994) suggested recently that the perceived duration for attended stimuli is shorter than that for unattended ones. In contrast, the attenuation hypothesis (Thomas & Weaver, 1975) suggests the reverse relation between directed attention and perceived duration. We conducted six experiments to test the validity of the two contradictory hypotheses. In all the experiments, attention was directed to one of two possible stimulus sources. Experiments 1 and 2 employed stimulus durations from 70 to 270 msec. A stimulus appeared in either the visual or the auditory modality. Stimuli in the attended modality were rated as longer than stimuli in the unattended modality. Experiment 3 replicated this finding using a different psychophysical procedure. Experiments 4-6 showed that the finding applies not only to stimuli from different sensory modalities but also to stimuli appearing at different locations within the visual field. The results of all six experiments support the assumption that directed attention prolongs the perceived duration of a stimulus.