Abstract：
:In uncertain environments, decision-makers must balance two goals: they must "exploit" rewarding options but also "explore" in order to discover rewarding alternatives. Exploring and exploiting necessarily change how the brain responds to identical stimuli, but little is known about how these states, and transitions between them, change how the brain transforms sensory information into action. To address this question, we recorded neural activity in a prefrontal sensorimotor area while monkeys naturally switched between exploring and exploiting rewarding options. We found that exploration profoundly reduced spatially selective, choice-predictive activity in single neurons and delayed choice-predictive population dynamics. At the same time, reward learning was increased in brain and behavior. These results indicate that exploration is related to sudden disruptions in prefrontal sensorimotor control and rapid, reward-dependent reorganization of control dynamics. This may facilitate discovery through trial and error.
journal_name
Neuronjournal_title
Neuronauthors
Ebitz RB,Albarran E,Moore Tdoi
10.1016/j.neuron.2017.12.007subject
Has Abstractpub_date
2018-01-17 00:00:00pages
450-461.e9issue
2eissn
0896-6273issn
1097-4199pii
S0896-6273(17)31130-3journal_volume
97pub_type
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