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注意力分散和冲动的神经状态与选择性注意不同,并且调节空间注意力的实施。

Distractibility and impulsivity neural states are distinct from selective attention and modulate the implementation of spatial attention.

机构信息

Institut des Sciences Cognitives Marc Jeannerod, CNRS UMR 5229, Université Claude Bernard Lyon 1, 67 Boulevard Pinel, 69675, Bron Cedex, France.

Department of Physiology and Pharmacology, Sapienza University of Rome, 0018, Rome, Italy.

出版信息

Nat Commun. 2022 Aug 15;13(1):4796. doi: 10.1038/s41467-022-32385-y.

Abstract

In the context of visual attention, it has been classically assumed that missing the response to a target or erroneously selecting a distractor occurs as a consequence of the (miss)allocation of attention in space. In the present paper, we challenge this view and provide evidence that, in addition to encoding spatial attention, prefrontal neurons also encode a distractibility-to-impulsivity state. Using supervised dimensionality reduction techniques in prefrontal neuronal recordings in monkeys, we identify two partially overlapping neuronal subpopulations associated either with the focus of attention or overt behaviour. The degree of overlap accounts for the behavioral gain associated with the good allocation of attention. We further describe the neural variability accounting for distractibility-to-impulsivity behaviour by a two dimensional state associated with optimality in task and responsiveness. Overall, we thus show that behavioral performance arises from the integration of task-specific neuronal processes and pre-existing neuronal states describing task-independent behavioral states.

摘要

在视觉注意力的背景下,经典的假设是,对目标的反应缺失或错误地选择了分心物,是由于注意力在空间上的(错误)分配而发生的。在本文中,我们挑战了这一观点,并提供了证据表明,除了对空间注意力进行编码外,前额叶神经元还对分心-冲动状态进行编码。在猴子的前额叶神经元记录中使用监督降维技术,我们识别出两个部分重叠的神经元亚群,分别与注意力焦点或外显行为相关。重叠程度解释了与良好注意力分配相关的行为增益。我们进一步通过与任务和响应性最优相关的二维状态来描述解释分心-冲动行为的神经变异性。总体而言,我们因此表明,行为表现源于特定任务的神经元过程的整合以及描述任务独立行为状态的预先存在的神经元状态。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/aa2d/9378734/9a201d0dc8ca/41467_2022_32385_Fig1_HTML.jpg

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