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- W4290034695 abstract "Abstract Neurons have different roles in attention processing. These roles are determined by a neuron’s firing properties, neurotransmitter expression, and functional connectivity. Neurons in the visual cortical area, V4, are reliably engaged by selective attention but exhibit differences in firing rate and correlated variability. It remains unclear what specific neuronal properties shape these attention effects. We identified neurons as fast-spiking (FS) (putative inhibitory) and regular-spiking (RS) (putative excitatory) and investigated their role in anticipatory attention and how this related to their functional connectivity. V4 neurons exhibited a continuum of time-varying attention effects ranging from “restless-weak” neurons at one extreme to “quiet-strong” neurons at another. We found an interdependence between neural attention effects (e.g., restless-weak or quiet-strong), neuron type (FS, RS), and functional connectivity. In particular, we found neurons with restless-weak attention effects were more likely to be RS and have greater population coupling, compared to neurons with other types of attention effects. Also, quiet-strong neurons were more likely to be FS and these FS neurons exhibited higher spike synchrony. From this we propose that time-varying attention effects in a neuronal population depends on the relative involvement of neurons that drive stimulus processing and those that are engaged by intrinsic population activity. These results add important information to our understanding of visual attention circuits at the cellular level." @default.
- W4290034695 created "2022-08-06" @default.
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- W4290034695 date "2022-08-05" @default.
- W4290034695 modified "2023-09-26" @default.
- W4290034695 title "Dynamic attention signaling in V4: relation to excitatory/inhibitory cell class and population coupling" @default.
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- W4290034695 doi "https://doi.org/10.1101/2022.08.03.502634" @default.
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