Nagai J, Yokosawa K, Takano Y
Department of Psychology, Graduate School of Humanities and Sociology, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033.
Shinrigaku Kenkyu. 2000 Dec;71(5):395-402. doi: 10.4992/jjpsy.71.395.
We conducted three experiments in order to investigate the effect of stimulus orientation on negative priming (NP). Using the picture naming task, Murray (1995) reported the occurrence of semantic NP by rotated distractors. As the rotation of picture stimuli seems to have little effect to reduce distractor interference, in the present study we used the character (katakana) identification task to ensure the effect of stimulus rotation. When the distractors were rotated (180 degrees), no NP was observed whether the targets were upright (Experiment 1) or rotated (Experiment 2). On the other hand, significant NP was observed when the distractors were upright and the targets were rotated (Experiment 3). These results suggest that the inhibitory mechanism of attention may not operate on the rotated distractor characters.
为了研究刺激方向对负启动效应（NP）的影响，我们进行了三项实验。默里（1995）使用图片命名任务报告了旋转干扰物会出现语义NP。由于图片刺激的旋转似乎对减少干扰物干扰作用不大，在本研究中，我们使用字符（片假名）识别任务来确保刺激旋转的效果。当干扰物旋转（180度）时，无论目标是直立的（实验1）还是旋转的（实验2），都未观察到NP。另一方面，当干扰物是直立的而目标是旋转的时，观察到了显著的NP（实验3）。这些结果表明，注意的抑制机制可能不会作用于旋转的干扰字符。
