Neuronal basis of sequential foraging decisions in a patchy environment

Benjamin Y. Hayden, John M. Pearson, Michael L. Platt

Research output: Contribution to journalArticle

211 Scopus citations

Abstract

Deciding when to leave a depleting resource to exploit another is a fundamental problem for all decision makers. The neuronal mechanisms mediating patch-leaving decisions remain unknown. We found that neurons in primate (Macaca mulatta) dorsal anterior cingulate cortex, an area that is linked to reward monitoring and executive control, encode a decision variable signaling the relative value of leaving a depleting resource for a new one. Neurons fired during each sequential decision to stay in a patch and, for each travel time, these responses reached a fixed threshold for patch-leaving. Longer travel times reduced the gain of neural responses for choosing to stay in a patch and increased the firing rate threshold mandating patch-leaving. These modulations more closely matched behavioral decisions than any single task variable. These findings portend an understanding of the neural basis of foraging decisions and endorse the unification of theoretical and experimental work in ecology and neuroscience.

Original languageEnglish (US)
Pages (from-to)933-939
Number of pages7
JournalNature neuroscience
Volume14
Issue number7
DOIs
StatePublished - Jul 1 2011
Externally publishedYes

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