Whitaker L A
J Exp Psychol Hum Percept Perform. 1982 Dec;8(6):865-74. doi: 10.1037//0096-1523.8.6.865.
In two experiments, choice response times to visual stimuli (word and arrow) were measured. The stimuli were presented briefly (180 msec) in left and right visual half-field (VHF). Each stimulus required a left-right discrimination; however, half the stimuli were positive (e.g., LEFT), and half were negative (e.g., NOT RIGHT). In Experiment 1, button-pressing responses in the midsagittal plane were used; in Experiment 2, vocal responses were used. There was a strong stimulus-response (S-R) compatibility effect, influenced by the interaction of negation (positive vs. negative) and stimulus position (VHF). Latencies were faster to positive stimuli whose direction and VHF matched than to positive stimuli whose direction and VHF did not correspond. Conversely, latencies were faster to negative stimuli when response direction and VHF did not match than when direction and VHF did correspond. These results replicate the S-R compatibility effect found by Whitaker (1980) using foveal stimuli. The results were analyzed with regard to a hemisphere activation model proposed by Cotton, Tzeng, and Hardyck (1980) but were found to fit Whitaker's (1980) model better.
在两项实验中，测量了对视觉刺激（单词和箭头）的选择反应时间。刺激在左、右视觉半视野（VHF）中短暂呈现（180毫秒）。每个刺激都需要进行左右辨别；然而，一半的刺激是肯定的（例如，LEFT），一半是否定的（例如，NOT RIGHT）。在实验1中，使用矢状面中的按键反应；在实验2中，使用发声反应。存在强烈的刺激-反应（S-R）兼容性效应，受否定（肯定与否定）和刺激位置（VHF）相互作用的影响。与方向和VHF不对应的肯定刺激相比，方向和VHF匹配的肯定刺激的潜伏期更快。相反，当反应方向和VHF不匹配时，否定刺激的潜伏期比方向和VHF匹配时更快。这些结果重复了惠特克（1980）使用中央凹刺激发现的S-R兼容性效应。根据科顿、曾和哈迪克（1980）提出的半球激活模型对结果进行了分析，但发现其更符合惠特克（1980）的模型。
