Spijkers W A
Aachen University of Technology, FRG.
Acta Psychol (Amst). 1990 Dec;75(3):261-77. doi: 10.1016/0001-6918(90)90016-9.
Three experiments are reported aiming at a further understanding of the effect of response-specificity, operationalized as the degree of commonality of direction of movements. In a previous study, Spijkers (1987) has claimed that response-specificity affects the readiness of the motor system and is not related to response-selection processes. These suppositions were generally confirmed in experiments 1 and 2 respectively. Common to both experiments were the variables average movement velocity and response-specificity. In experiment 1 the effect of the additional variable foreperiod duration was found to interact with that of response-specificity, hereby confirming its expected relation to the muscular system. The effect of response-specificity did not interact with that of spatial S-R compatibility in the second experiment, but also failed to show a main effect. The third experiment examined the supposed relation of response-specificity more directly through manipulation of the muscle-tension of the responding limb. The predicted form of the interaction between the effect of response-specificity and muscle-tension was confirmed which provided additional evidence for the interpretation of response-specificity effects in terms of differential muscular activation.
本文报告了三项实验，旨在进一步了解反应特异性的影响，反应特异性以运动方向的共同程度来衡量。在之前的一项研究中，斯皮杰克斯（1987）声称反应特异性会影响运动系统的准备状态，且与反应选择过程无关。这些假设分别在实验1和实验2中得到了普遍证实。两个实验的共同变量是平均运动速度和反应特异性。在实验1中，发现额外变量前运动期持续时间的影响与反应特异性的影响相互作用，从而证实了其与肌肉系统的预期关系。在第二个实验中，反应特异性的影响与空间刺激-反应相容性的影响没有相互作用，但也没有显示出主效应。第三个实验通过操纵反应肢体的肌肉张力更直接地检验了反应特异性的假定关系。反应特异性影响与肌肉张力之间相互作用的预测形式得到了证实，这为从不同肌肉激活角度解释反应特异性效应提供了额外证据。
