Schmidt Liane, Cléry-Melin Marie-Laure, Lafargue Gilles, Valabrègue Romain, Fossati Philippe, Dubois Bruno, Pessiglione Mathias
Institut du Cerveau et de la Moëlle épinière (ICM), INSERM UMRS 975, Paris, France.
J Neurosci. 2009 Jul 29;29(30):9450-7. doi: 10.1523/JNEUROSCI.1951-09.2009.
Effort magnitude is commonly thought to reflect motivation, but little is known about the influence of emotional factors. Here, we manipulated the emotional state of subjects, via the presentation of pictures, before they exerted physical effort to win money. After highly arousing pictures, subjects produced more force and reported lower effort sensation, regardless of monetary incentives. Functional neuroimaging revealed that emotional arousal, as indexed by postscan ratings, specifically correlated with bilateral activity in the ventrolateral prefrontal cortex. We suggest that this region, by driving the motor cortex, constitutes a brain pathway that allows emotional arousal to facilitate physical effort.
通常认为努力程度反映了动机，但对于情感因素的影响却知之甚少。在此，我们在受试者为赢钱而付出体力之前，通过展示图片来操控他们的情绪状态。在观看高度唤起情绪的图片后，无论金钱激励如何，受试者都能产生更大的力量，并报告较低的努力感。功能性神经成像显示，扫描后评分所反映的情绪唤起与腹外侧前额叶皮质的双侧活动存在特定关联。我们认为，该区域通过驱动运动皮质，构成了一条大脑通路，使情绪唤起能够促进体力付出。
