Secondary motor cortex: Broadcasting and biasing animal's decisions through long-range circuits.
Secondary motor cortex: Broadcasting and biasing animal's decisions through long-range circuits.
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DOI:
10.1016/bs.irn.2020.11.008
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发表时间:
2021
影响因子:
--
通讯作者:
Kwan AC
中科院分区:
文献类型:
--
作者:
Yang JH;Kwan AC
Medial secondary motor cortex (MOs or M2) constitutes the dorsal aspect of the rodent medial frontal cortex. We previously proposed that the function of MOs is to link antecedent conditions, including sensory stimuli and prior choices, to impending actions. In this review, we focus on the long-range pathways between MOs and other cortical and subcortical regions. We highlight three circuits: (1) connections with visual and auditory cortices that are essential for predictive coding of perceptual inputs; (2) connections with motor cortex and brainstem that are responsible for top-down, context-dependent modulation of movements; (3) connections with retrosplenial cortex, orbitofrontal cortex, and basal ganglia that facilitate reward-based learning. Together, these long-range circuits allow MOs to broadcast choice signals for feedback and to bias decision-making processes.
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