A habenula-insular circuit encodes the willingness to act

Nima Khalighinejad (), Neil Garrett, Luke Priestley, Patricia Lockwood and Matthew F. S. Rushworth
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Nima Khalighinejad: University of Oxford
Neil Garrett: University of Oxford
Luke Priestley: University of Oxford
Patricia Lockwood: University of Oxford
Matthew F. S. Rushworth: University of Oxford

Nature Communications, 2021, vol. 12, issue 1, 1-12

Abstract: Abstract The decision that it is worth doing something rather than nothing is a core yet understudied feature of voluntary behaviour. Here we study “willingness to act”, the probability of making a response given the context. Human volunteers encountered opportunities to make effortful actions in order to receive rewards, while watching a movie inside a 7 T MRI scanner. Reward and other context features determined willingness-to-act. Activity in the habenula tracked trial-by-trial variation in participants’ willingness-to-act. The anterior insula encoded individual environment features that determined this willingness. We identify a multi-layered network in which contextual information is encoded in the anterior insula, converges on the habenula, and is then transmitted to the supplementary motor area, where the decision is made to either act or refrain from acting via the nigrostriatal pathway.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26569-1

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DOI: 10.1038/s41467-021-26569-1

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