The auditory redundant signals effect: An influence of number of stimuli or number of percepts?

被引:21
作者
Schroeter, Hannes [1 ]
Frei, Luisa S.
Ulrich, Rolf
Miller, Jeff [2 ]
机构
[1] Univ Tubingen, Inst Psychol, Abt Allgemeine & Biol Psychol, D-72072 Tubingen, Germany
[2] Univ Otago, Dunedin, New Zealand
关键词
SIMPLE REACTION-TIME; RACE MODEL INEQUALITY; INTERSENSORY FACILITATION; STATISTICAL FACILITATION; DIVIDED ATTENTION; RESPONSE FORCE; COACTIVATION; INTENSITY; FREQUENCY; DIFFUSION;
D O I
10.3758/APP.71.6.1375
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
In two experiments, we examined simple reaction times (RTs) for detection of the onsets and offsets of auditory stimuli. Both experiments assessed the redundant signals effect (RSE), which is traditionally defined as the reduction in RT associated with the presentation of two redundant stimuli, rather than a single stimulus. In Experiment 1, with two identical tones presented via headphones to the left ear, right ear, or both, no RSE was found in responding to tone onsets, but a large RSE was found in responding to their offsets. In Experiment 2, with a pure tone and white noise as the two stimulus alternatives, RSEs were found for responding to both onsets and offsets. The results support the notion that the occurrence of an RSE depends on the number of percepts, rather than the number of stimuli, and on the requirement to respond to stimulus onsets versus offsets. The parallel grains model (Miller & Ulrich, 2003) provides one possible account of this pattern of results.
引用
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页码:1375 / 1384
页数:10
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