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Summary: LETTERS
Free choice activates a decision circuit between
frontal and parietal cortex
Bijan Pesaran1,3
, Matthew J. Nelson2
& Richard A. Andersen2,3
We often face alternatives that we are free to choose between.
Planning movements to select an alternative involves several areas
in frontal and parietal cortex111
that are anatomically connected
into long-range circuits12
. These areas must coordinate their acti-
vity to select a common movement goal, but how neural circuits
make decisions remains poorly understood. Here we simulta-
neously record from the dorsal premotor area (PMd) in frontal
cortex and the parietal reach region (PRR) in parietal cortex to
investigate neural circuit mechanisms for decision making. We
find that correlations in spike and local field potential (LFP) acti-
vity between these areas are greater when monkeys are freely mak-
ing choices than when they are following instructions. We propose
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