File(s) not publicly available
Dynamic construction of a coherent attentional state in a prefrontal cell population
journal contribution
posted on 2023-06-08, 15:47 authored by Mikiko Kadohisa, Philippe Petrov, Mark Stokes, Natasha SigalaNatasha Sigala, Mark Buckley, David Gaffan, Makoto Kusunoki, John DuncanPrefrontal cortex has been proposed to show highly adaptive information coding, with neurons dynamically allocated to processing task-relevant information. To track this dynamic allocation in monkey prefrontal cortex, we used time-resolved measures of neural population activity in a simple case of competition between target (behaviorally critical) and nontarget objects in opposite visual hemifields. Early in processing, there were parallel responses to competing inputs, with neurons in each hemisphere dominated by the contralateral stimulus. Later, the nontarget lost control of neural activity, with emerging global control by the behaviorally critical target. The speed of transition reflected the competitive weights of different display elements, occurring most rapidly when relative behavioral significance was well established by training history. In line with adaptive coding, the results show widespread reallocation of prefrontal processing resources as an attentional focus is established.
History
Publication status
- Published
Journal
NeuronISSN
0896-6273Publisher
ElsevierExternal DOI
Issue
1Volume
80Page range
235-246Department affiliated with
- BSMS Neuroscience Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2013-09-18Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC