A habenula-insular circuit encodes the willingness to act.

A habenula-insular circuit encodes the willingness to act.
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DOI:
10.1038/s41467-021-26569-1
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发表时间:
2021-11-03
影响因子:
16.6
通讯作者:
Rushworth MFS
Rushworth MFS
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Khalighinejad N;Garrett N;Priestley L;Lockwood P;Rushworth MFS

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决定值得做点什么而不是什么都不做,是自愿行为的一个核心特征,但尚未得到充分研究。这里我们研究的是“行动意愿”,即在特定情境下做出回应的概率。志愿者们在一台7 T核磁共振扫描仪内观看电影时,有机会通过努力行动来获得奖励。奖励和其他环境特征决定了行动意愿。缰带的活动追踪了每次试验中参与者行动意愿的变化。前脑岛编码了决定这种意愿的个体环境特征。我们发现了一个多层网络,在这个网络中,背景信息在前岛被编码,汇聚到缰核,然后传递到辅助运动区,在那里通过黑质纹状体通路做出行动或不行动的决定。自愿行为的一个关键组成部分是决定值得做点什么,而不是什么都不做。在这里,作者展示了编码这个决定的大脑网络,包括缰核和前岛。
The decision that it is worth doing something rather than nothing is a core yet understudied feature of voluntary behaviour. Here we study “willingness to act”, the probability of making a response given the context. Human volunteers encountered opportunities to make effortful actions in order to receive rewards, while watching a movie inside a 7 T MRI scanner. Reward and other context features determined willingness-to-act. Activity in the habenula tracked trial-by-trial variation in participants’ willingness-to-act. The anterior insula encoded individual environment features that determined this willingness. We identify a multi-layered network in which contextual information is encoded in the anterior insula, converges on the habenula, and is then transmitted to the supplementary motor area, where the decision is made to either act or refrain from acting via the nigrostriatal pathway. A crucial component of voluntary behaviour is deciding that it is worth doing something rather than nothing. Here the authors show the brain network that encodes this decision, which includes the habenula and anterior insula.
DOI: 10.1038/nrn2866
发表时间: 2010-07
影响因子: 34.7
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