Use of partial stimulus information in response processing.
Use of partial stimulus information in response processing.
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DOI：
10.1037//0096-1523.14.4.682
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发表时间：
1988-11
期刊：
影响因子：
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通讯作者：
Ritske de Jong;Marcel Wierda;Gijsbertus Mulder;Lambertus J. Mulder
中科院分区：
文献类型：
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作者：
Ritske de Jong;Marcel Wierda;Gijsbertus Mulder;Lambertus J. Mulder
我们研究了当刺激集和反应集的显著特征相对应时所获得的反应时间效益。事件相关脑电位的成分被用来测量刺激相关和反应相关过程的时间，以确定这种效应的位置。特别重要的是开发了一种新的选择性反应准备指标，即校正运动不对称性（CMA）。我们没有发现在反应准备中使用初步的、部分的刺激信息的证据。这些结果表明，这种优势主要存在于反应选择过程中，可能反映了一种更有效的刺激-反应转换算法。此外，我们发现反应选择持续时间的试验对试验的可变性是反应时间可变性的主要决定因素，而随后的反应相关过程的持续时间相对不变。讨论了这些结果对选择反应性能的离散和连续模型的影响。
We examined the reaction time benefit that is obtained when salient features of the stimulus set and response set correspond. Components of the event-related brain potentials were used to measure the timing of stimulus-related and response-related processes in order to determine the locus of this effect. Of particular importance was the development of a new index of selective response preparation, the corrected motor asymmetry (CMA). We found no evidence for the use of preliminary, partial stimulus information in response preparation. These results suggest that the benefit is located primarily in response selection processes and probably reflects a more efficient algorithm for stimulus-response translation. Also, we found trial-to-trial variability in the duration of response selection to be the major determinant of variability in reaction time, whereas the durations of subsequent response-related processes were relatively invariant. Implications of these results for discrete and continuous models of choice reaction performance are discussed.