Fluid network dynamics in the prefrontal cortex during multiple strategy switching

Hugo Malagon-Vina (), Stephane Ciocchi, Johannes Passecker, Georg Dorffner and Thomas Klausberger ()
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Hugo Malagon-Vina: Medical University of Vienna
Stephane Ciocchi: Medical University of Vienna
Johannes Passecker: Medical University of Vienna
Georg Dorffner: Medical University of Vienna
Thomas Klausberger: Medical University of Vienna

Nature Communications, 2018, vol. 9, issue 1, 1-13

Abstract: Abstract Coordinated shifts of neuronal activity in the prefrontal cortex are associated with strategy adaptations in behavioural tasks, when animals switch from following one rule to another. However, network dynamics related to multiple-rule changes are scarcely known. We show how firing rates of individual neurons in the prelimbic and cingulate cortex correlate with the performance of rats trained to change their navigation multiple times according to allocentric and egocentric strategies. The concerted population activity exhibits a stable firing during the performance of one rule but shifted to another neuronal firing state when a new rule is learnt. Interestingly, when the same rule is presented a second time within the same session, neuronal firing does not revert back to the original neuronal firing state, but a new activity-state is formed. Our data indicate that neuronal firing of prefrontal cortical neurons represents changes in strategy and task-performance rather than specific strategies or rules.

Date: 2018
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DOI: 10.1038/s41467-017-02764-x

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