Van Selst M, Jolicoeur P
Department of Psychology, University of Waterloo, Ontario, Canada.
J Exp Psychol Hum Percept Perform. 1994 Aug;20(4):905-21. doi: 10.1037//0096-1523.20.4.905.
The effect of character disorientation on mirror-normal judgments was found to be partially attenuated with increasing task overlap with a preceding tone-frequency discrimination judgment. These results suggest that orientation-sensitive processing, used to prepare disoriented stimuli for mirror-normal discrimination, can be initiated and proceed in parallel with mental activities required for a tone-frequency discrimination task. The attenuation indicates that at least some of the orientation effect on mirror-normal discriminations has its locus prior to the dual-task processing bottleneck. The possibility that the partial attenuation of the orientation effect was due to attenuation of the effect of orientation on character identification, but not on the mental rotation required for mirror-normal judgments, was examined and rejected.
研究发现，随着与先前音调频率辨别判断的任务重叠增加，字符方向错乱对镜像正常判断的影响会部分减弱。这些结果表明，用于为镜像正常辨别准备方向错乱刺激的方向敏感处理，可以与音调频率辨别任务所需的心理活动同时启动并进行。这种减弱表明，至少部分方向对镜像正常辨别的影响发生在双任务处理瓶颈之前。研究并排除了方向效应的部分减弱是由于方向对字符识别的影响减弱，而非对镜像正常判断所需心理旋转的影响减弱的可能性。
