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首页> 外文期刊>Neuron >Neuronal Activity in Primate Dorsal Anterior Cingulate Cortex Signals Task Conflict and Predicts Adjustments in Pupil-Linked Arousal
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Neuronal Activity in Primate Dorsal Anterior Cingulate Cortex Signals Task Conflict and Predicts Adjustments in Pupil-Linked Arousal

机译：灵长类动物背前扣带回皮层中的神经元活动信号任务冲突，并预测瞳孔相关唤醒的调整。

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摘要

Whether driving a car, shopping for food, or paying attention in a classroom of boisterous teenagers, it's often hard to maintain focus on goals in the face of distraction. Brain imaging studies in humans implicate the dorsal anterior cingulate cortex (dACC) in regulating the conflict between goals and distractors. Here we show that single dACC neurons signal conflict between task goals and distractors in the rhesus macaque, particularly for biologically relevant social stimuli. For some neurons, task conflict signals predicted subsequent changes in pupil size-a peripheral index of arousal linked to noradrenergic tone-associated with reduced distractor interference. dACC neurons also responded to errors, and these signals predicted adjustments in pupil size. These findings provide the first neurophysiological endorsement of the hypothesis that dACC regulates conflict, in part, via modulation of pupil-linked processes such as arousal.
机译：无论是开车，逛街购物还是在喧闹的青少年教室里留神，面对分心的事情，通常都很难保持专注于目标。人体的脑成像研究表明，背侧前扣带回皮质（dACC）可以调节目标与干扰物之间的冲突。在这里，我们显示，单个dACC神经元信号指示猕猴中任务目标和干扰物之间的冲突，特别是对于生物学相关的社会刺激而言。对于某些神经元，任务冲突信号可预测瞳孔大小的后续变化-觉醒的外周指标与去甲肾上腺素能音有关，与分散干扰减少有关。 dACC神经元也对错误做出反应，这些信号可预测瞳孔大小的调整。这些发现首次证实了dACC调节冲突的假说，这部分是通过调节与瞳孔有关的过程（如唤醒）来进行的。

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