Du Feng, Wang Xiaotao, Abrams Richard A, Zhang Kan
CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100101, China.
CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; School of Psychology, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
Cognition. 2017 Aug;165:39-44. doi: 10.1016/j.cognition.2017.04.009. Epub 2017 May 6.
The space near the hands, or peri-hand space is a critical multisensory-motor interface between people and the environment. Recent studies have shown that visual processing near the hands is altered compared with stimuli far from the hands. Some results suggest that the changes may be mediated by brain mechanisms involved in evaluating emotional stimuli. Here we show direct evidence for that proposal: we found that both the emotional Stroop effect and the Late Positive Potential (LPP) to unpleasant visual stimuli were enhanced near the hands compared to far from the hands. The results reveal enhanced processing of unpleasant stimuli in peri-hand space, which may facilitate the response to potentially dangerous stimuli.
手部附近的空间，即手部周围空间，是人与环境之间关键的多感官运动界面。最近的研究表明，与远离手部的刺激相比，手部附近的视觉处理有所改变。一些结果表明，这些变化可能由参与评估情绪刺激的大脑机制介导。在此，我们为该提议提供了直接证据：我们发现，与远离手部相比，在手部附近，情绪斯特鲁普效应和对不愉快视觉刺激的晚期正电位（LPP）均增强。结果揭示了手部周围空间对不愉快刺激的处理增强，这可能有助于对潜在危险刺激做出反应。
