TP1

Maturation of flexible cognitive behavior as result of age-dependent formation of prefrontal ensembles in juvenile mice

Most functions contributing to cognitive flexibility, such as working-memory, are thought to mature in parallel with the development of prefrontal circuits and therefore, to progressively augment from childhood to young adulthood and to decline only after middle age. However, some aspects of cognitive flexibility, such as decision-making strategies, have been found to reach a maximal performance at juvenile age. The principles that govern the emergence of cognitive flexibility and corresponding neuronal ensembles, in general, and the performance differences for working-memory and decision-making during development, in particular, are poorly understood. Our previous studies elucidated the mechanisms underlying the temporal coordination within neonatal prefrontal circuits and its relevance for adult cognitive behavior. Here, we aim to tackle the dynamic assembling of prefrontal ensembles during working-memory and decision-making at different juvenile ages and identify their task-dependent patterning by hippocampal and thalamic inputs. We hypothesize that prefrontal ensembles are differently organized and input controlled during the two tasks across juvenile development. The investigation will identify the maturation principles of cognitive flexibility in relation with the dynamic formation of prefrontal ensembles.

Principal investigator

Prof. Dr. Ileana Livia Hanganu-Opatz

Institute of Developmental Neurophysiology
ZMNH University Medical Center Hamburg

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Staff

Dr. Maria Dorofeikova

Associated Staff

Dr. Jastyn Anne Pöpplau

Associated Staff

Marilena Hnida

Publications

Introducing the Research Unit 5159 “Resolving the prefrontal circuits of cognitive flexibility”

neuroforum, Issue 01 2022

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Pregnancy-induced maternal microchimerism shapes neurodevelopment and behavior in mice

Nature Communication, Issue 08 2022

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