Dynamic construction of a coherent attentional state in a prefrontal cell population.
Prefrontal 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 c...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2013
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| _version_ | 1826265856286392320 |
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| author | Kadohisa, M Petrov, P Stokes, M Sigala, N Buckley, M Gaffan, D Kusunoki, M Duncan, J |
| author_facet | Kadohisa, M Petrov, P Stokes, M Sigala, N Buckley, M Gaffan, D Kusunoki, M Duncan, J |
| author_sort | Kadohisa, M |
| collection | OXFORD |
| description | Prefrontal 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. |
| first_indexed | 2024-03-06T20:30:11Z |
| format | Journal article |
| id | oxford-uuid:30c5bb8b-3d63-42bd-8a3b-d6eb5bc02caf |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:30:11Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:30c5bb8b-3d63-42bd-8a3b-d6eb5bc02caf2022-03-26T13:03:41ZDynamic construction of a coherent attentional state in a prefrontal cell population.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:30c5bb8b-3d63-42bd-8a3b-d6eb5bc02cafEnglishSymplectic Elements at Oxford2013Kadohisa, MPetrov, PStokes, MSigala, NBuckley, MGaffan, DKusunoki, MDuncan, JPrefrontal 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. |
| spellingShingle | Kadohisa, M Petrov, P Stokes, M Sigala, N Buckley, M Gaffan, D Kusunoki, M Duncan, J Dynamic construction of a coherent attentional state in a prefrontal cell population. |
| title | Dynamic construction of a coherent attentional state in a prefrontal cell population. |
| title_full | Dynamic construction of a coherent attentional state in a prefrontal cell population. |
| title_fullStr | Dynamic construction of a coherent attentional state in a prefrontal cell population. |
| title_full_unstemmed | Dynamic construction of a coherent attentional state in a prefrontal cell population. |
| title_short | Dynamic construction of a coherent attentional state in a prefrontal cell population. |
| title_sort | dynamic construction of a coherent attentional state in a prefrontal cell population |
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