Performance monitoring by the anterior cingulate cortex during saccade countermanding
Performance monitoring by the anterior cingulate cortex during saccade countermanding
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DOI：
10.1126/science.1087847
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发表时间：
2003-10-03
期刊：
影响因子：
56.9
通讯作者：
Schall, JD
中科院分区：
文献类型：
--
作者：
Ito, S;Stuphorn, V;Schall, JD
人们正在形成共识，认为大脑内侧额叶参与了对表现的监测，但确切地说，监测的是什么仍不清楚。眼跳逆转任务提供了错误、强化和冲突等神经信号的实验性分离。执行这项任务的猴子的前扣带回皮质中的单个单位活动被监测。发现了发出错误信号的神经元，其中一半对省略获得的强化做出了反应。神经元的进一步多样性表明获得了或意想不到的强化。没有神经元发出信号，表明这项任务中产生的眼跳准备中断所产生的冲突形式。这些结果与前扣带回皮质监控行为后果的假设一致。
Consensus is emerging that the medial frontal lobe of the brain is involved in monitoring performance, but precisely what is monitored remains unclear. A saccade-countermanding task affords an experimental dissociation of neural signals of error, reinforcement, and conflict. Single-unit activity was monitored in the anterior cingulate cortex of monkeys performing this task. Neurons that signaled errors were found, half of which responded to the omission of earned reinforcement. A further diversity of neurons signaled earned or unexpected reinforcement. No neurons signaled the form of conflict engendered by interruption of saccade preparation produced in this task. These results are consistent with the hypothesis that the anterior cingulate cortex monitors the consequences of actions.