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Neural Basis of Cognitive Control over Movement Inhibition: Human fMRI - Tapa blanda

Xu, Kitty Zhe

 
9786202306010: Neural Basis of Cognitive Control over Movement Inhibition: Human fMRI
Tapa blanda
ISBN 10: 6202306017 ISBN 13: 9786202306010
Editorial: Scholars' Press, 2018

Sinopsis

A critical function of executive control is the ability to flexibly inhibit or change a plan of action when it is contextually inappropriate. Using human fMRI and a context-dependent stop signal task (SST), we found a functional double dissociation between the right ventrolateral prefrontal cortex (rVLPFC) and the bi-lateral frontal eye field (FEF). rVLPFC activation was associated with detecting and encoding the meaning of stop signals and the response inhibition, while FEF activity reflected motor output regardless of the stimulus response mapping or the context. Furthermore, a representation of stop signal meaning and response inhibition were represented in separate regions of rVLPFC. These results were further validated by electrophysiological recordings in rVLPFC and FEF from one monkey. The findings suggest that inhibition of a planned behavior is not governed by a single brain system as had been previously proposed, but instead depends on two neurally distinct processes.

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Reseña del editor

A critical function of executive control is the ability to flexibly inhibit or change a plan of action when it is contextually inappropriate. Using human fMRI and a context-dependent stop signal task (SST), we found a functional double dissociation between the right ventrolateral prefrontal cortex (rVLPFC) and the bi-lateral frontal eye field (FEF). rVLPFC activation was associated with detecting and encoding the meaning of stop signals and the response inhibition, while FEF activity reflected motor output regardless of the stimulus response mapping or the context. Furthermore, a representation of stop signal meaning and response inhibition were represented in separate regions of rVLPFC. These results were further validated by electrophysiological recordings in rVLPFC and FEF from one monkey. The findings suggest that inhibition of a planned behavior is not governed by a single brain system as had been previously proposed, but instead depends on two neurally distinct processes.

Biografía del autor

I received my PhD in from the Department of Psychological and Brain Sciences at the Johns Hopkins University. My research focused on studying how our brains make decisions, and allow us to inhibit and/or initiate an action in different situations and contexts. I currently work as a quantitative user experience researcher at Pinterest. Inc

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Editorial
Scholars' Press
Año de publicación
2018
Idioma
Inglés
ISBN 10 
6202306017
ISBN 13 
9786202306010
Encuadernación
Tapa blanda
Número de páginas
56
Contacto del fabricante
no disponible
Persona responsable
no disponible