Takahashi Kohske, Fukuda Haruaki, Samejima Kazuyuki, Watanabe Katsumi, Ueda Kazuhiro
Research Center for Advanced Science and Technology, The University of Tokyo Tokyo, Japan.
Core Research for Evolutional Science and Technology, Japan Science and Technology Agency Tokyo, Japan ; Graduate School of Arts and Sciences, The University of Tokyo Tokyo, Japan.
Front Psychol. 2015 May 21;6:662. doi: 10.3389/fpsyg.2015.00662. eCollection 2015.
In the uncanny valley phenomenon, the causes of the feeling of uncanniness as well as the impact of the uncanniness on behavioral performances still remain open. The present study investigated the behavioral effects of stimulus uncanniness, particularly with respect to speeded response. Pictures of fish were used as visual stimuli. Participants engaged in direction discrimination, spatial cueing, and dot-probe tasks. The results showed that pictures rated as strongly uncanny delayed speeded response in the discrimination of the direction of the fish. In the cueing experiment, where a fish served as a task-irrelevant and unpredictable cue for a peripheral target, we again observed that the detection of a target was slowed when the cue was an uncanny fish. Conversely, the dot-probe task suggested that uncanny fish, unlike threatening stimulus, did not capture visual spatial attention. These results suggested that stimulus uncanniness resulted in the delayed response, and importantly this modulation was not mediated by the feelings of threat.
在恐怖谷现象中，产生恐怖感的原因以及恐怖感对行为表现的影响仍不明确。本研究调查了刺激的恐怖感对行为的影响，特别是对快速反应的影响。使用鱼的图片作为视觉刺激。参与者进行方向辨别、空间线索提示和点探测任务。结果表明，被评为高度恐怖的图片会延迟对鱼方向的辨别中的快速反应。在线索提示实验中，当鱼作为外周目标的任务无关且不可预测的线索时，我们再次观察到，当线索是恐怖的鱼时，目标的检测会减慢。相反，点探测任务表明，与威胁性刺激不同，恐怖的鱼不会吸引视觉空间注意力。这些结果表明，刺激的恐怖感导致反应延迟，重要的是，这种调节不是由威胁感介导的。
