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- W4308294267 abstract "Complex cognition requires coordinated neuronal activity at the network level. In mammals, this coordination results in distinct dynamics of local field potentials (LFP) central to many models of higher cognition. These models often implicitly assume a cortical organization. Higher associative regions of the brains of birds do not have cortical layering, yet single-cell correlates of higher cognition are very similar to those found in mammals. We recorded LFP in the avian equivalent of prefrontal cortex while crows performed a highly controlled and cognitively demanding working memory task. We found signatures in local field potentials, modulated by working memory. Frequencies of a narrow gamma and the beta band contained information about the location of target items and were modulated by working memory load. This indicates a critical involvement of these bands in ongoing cognitive processing. We also observed bursts in the beta and gamma frequencies, similar to those that play a vital part in 'activity silent' models of working memory. Thus, despite the lack of a cortical organization the avian associative pallium can create LFP signatures reminiscent of those observed in primates. This points towards a critical cognitive function of oscillatory dynamics evolved through convergence in species capable of complex cognition." @default.
- W4308294267 created "2022-11-10" @default.
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- W4308294267 date "2022-12-01" @default.
- W4308294267 modified "2023-10-16" @default.
- W4308294267 title "Oscillations without cortex: Working memory modulates brainwaves in the endbrain of crows" @default.
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- W4308294267 doi "https://doi.org/10.1016/j.pneurobio.2022.102372" @default.
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