Department of Psychology, Utrecht University, The Netherlands.
Cogn Emot. 2011 Sep;25(6):1131-8. doi: 10.1080/02699931.2010.524053. Epub 2011 May 24.
Using a new method, we examined whether incidental perception of need-rewarding (positive) objects unintentionally prepares motor action. Participants who varied in their level of need for water were presented with glasses of water (and control objects) that were accompanied by go and no-go cues that required a response (key-press) or withholding a response. Importantly, if need-rewarding objects unintentionally prepare action, presentation of no-go cues should lead to motor inhibition of these prepared motor impulses. Consistent with this hypothesis, results showed that participants relatively high in need for water (and hence, who perceive water as a rewarding, positive object) were slower to react to a successive action probe after withholding a response during perception of water than during perception of the control object, suggesting motor inhibition of unintentionally prepared motor impulses. We propose that incidental perception of need-rewarding objects unintentionally potentiates preparation of motor action to these objects.
我们采用一种新方法，考察了对奖赏性（正性）目标的偶然知觉是否会无意识地准备运动行为。参与者的水需求水平存在差异，他们会看到盛有水（以及对照物）的杯子，同时杯子上附有要求做出反应（按键）或不做出反应（不按键）的启动-停止线索。重要的是，如果奖赏性目标会无意识地准备运动行为，那么呈现停止线索应该会导致对这些预备运动冲动的运动抑制。与该假说一致的是，结果表明，对水的需求较高（因此，将水视为奖赏性的正性目标）的参与者在感知水时，与感知对照物时相比，在对水的知觉中做出反应的速度较慢，这表明对无意识准备的运动冲动进行了运动抑制。我们提出，对奖赏性目标的偶然知觉会无意识地增强对这些目标的运动行为准备。
