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Neural inhibition as implemented by an actor-critic model involves the human dorsal striatum and ventral tegmental area
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Neural inhibition as implemented by an actor-critic model involves the human dorsal striatum and ventral tegmental area
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Journal Article
Neural inhibition as implemented by an actor-critic model involves the human dorsal striatum and ventral tegmental area
2024
Overview
Inhibition is implicated across virtually all human experiences. As a trade-off of being very efficient, this executive function is also prone to many errors. Rodent and computational studies show that midbrain regions play crucial roles during errors by sending dopaminergic learning signals to the basal ganglia for behavioural adjustment. However, the parallels between animal and human neural anatomy and function are not determined. We scanned human adults while they performed an fMRI inhibitory task requiring trial-and-error learning. Guided by an actor-critic model, our results implicate the dorsal striatum and the ventral tegmental area as the actor and the critic, respectively. Using a multilevel and dimensional approach, we also demonstrate a link between midbrain and striatum circuit activity, inhibitory performance, and self-reported autistic and obsessive–compulsive subclinical traits.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
