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A real-time marker of object-based attention in the human brain. A possible component of a "gate-keeping mechanism" performing late attentional selection in the Ventro-Lateral Prefrontal Cortex.

Abstract：

:The decision to process an incoming stimulus attentively - and to trigger a follow-up cascade of high-level processes - is strategic for the human brain as it becomes transiently unavailable to subsequent stimulus processing. In this study, we set to identify brain networks that carry out such evaluations. We therefore assessed the time-course of neural responses with intracerebral EEG in human patients during an attentional reading task, contrasting to-be-attended vs. to-be-ignored items. We measured High-Frequency Activity [50-150 ​Hz] as a proxy of population-level spiking activity and we identified a crucial component of a Gate-Keeping Mechanism bilateral in the mid-Ventro-Lateral Prefrontal Cortex (VLPFC), at the interplay of the Ventral and Dorsal Attention Networks, that selectively reacts before domain specialized cortical regions that engage in full stimulus analysis according to task demands.

journal_name

Neuroimage

journal_title

NeuroImage

authors

Perrone-Bertolotti M,El Bouzaïdi Tiali S,Vidal JR,Petton M,Croize AC,Deman P,Rheims S,Minotti L,Bhattacharjee M,Baciu M,Kahane P,Lachaux JP

doi

10.1016/j.neuroimage.2020.116574

subject

Has Abstract

pub_date

2020-04-15 00:00:00

pages

116574

eissn

1053-8119

issn

1095-9572

pii

S1053-8119(20)30061-6

journal_volume

210

pub_type

杂志文章

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