Roberts James W, Bennett Simon J, Hayes Spencer J
Brain and Behaviour Laboratory, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK.
Psychol Res. 2016 Jul;80(4):487-95. doi: 10.1007/s00426-015-0666-9. Epub 2015 Apr 17.
Cyclical upper limb movement can involuntarily deviate from its primary movement axis when the performer concurrently observes incongruent biological motion (i.e. interpersonal observation-execution). The current study examined the social modulation of such involuntary motor interference using a protocol that reflected everyday social interactions encountered in a naturalistic social setting. Eighteen participants executed cyclical horizontal arm movements during the observation of horizontal (congruent) or curvilinear (incongruent) biological motion. Both prior to, and during the interpersonal observation-execution task, participants also received a series of social words designed to prime a pro-social or anti-social attitude. The results showed greater orthogonal movement deviation, and thus interference, for the curvilinear compared to horizontal stimuli. Importantly, and opposite to most of the previous findings from work on automatic imitation and mimicry, there was a greater interference effect for the anti-social compared to pro-social prime condition. These findings demonstrate the importance of interpreting the context of social primes, and strongly support predictions of a comparison between the prime construct and the self-concept/-schema and the top-down response modulation of social incentives.
当执行者同时观察不一致的生物运动（即人际观察 - 执行）时，周期性上肢运动会不由自主地偏离其主要运动轴。本研究使用一种反映自然社会环境中日常社会互动的方案，考察了这种非自愿运动干扰的社会调节作用。18名参与者在观察水平（一致）或曲线（不一致）生物运动时执行周期性水平手臂运动。在人际观察 - 执行任务之前和期间，参与者还收到一系列旨在引发亲社会或反社会态度的社会词汇。结果显示，与水平刺激相比，曲线刺激的正交运动偏差更大，因此干扰也更大。重要的是，与之前关于自动模仿和拟态的大多数研究结果相反，反社会启动条件下的干扰效应比亲社会启动条件下更大。这些发现证明了解释社会启动背景的重要性，并有力地支持了关于启动结构与自我概念 / 图式之间比较以及社会激励的自上而下反应调节的预测。
