Work

Context-dependent attentional spotlight in pulvinar-V1 interaction

Year: 2023

Type: article

Abstract: Spatial attention is often described as a mental spotlight that enhances information processing at the attended location. Using fMRI, we investigated background connectivity between the pulvinar and V1 in relation to focused versus diffused attention allocation, in weak and strong crowding contexts. Our findings revealed that focused attention led to enhanced correlations between the pulvinar and V1. Notably, this modulation was initiated by the pulvinar, and the strength of the modulation was dependent on the saliency of the target. These findings suggest that the pulvinar initiates information reweighting to V1, which underlies attentional selection in cluttered scenes.

Source: NeuroImage

DOI: 10.1016/j.neuroimage.2023.120341

Authors: Nihong Chen, Hailin Ai, Xincheng Lu

Institution: Tsinghua University

Language: English

Topic: Visual perception and processing mechanisms

Subfield: Cognitive Neuroscience

Field: Neuroscience

Domain: Life Sciences

Open Access status: gold

Estimated APC paid: $3,450

Funders: National Natural Science Foundation of China, Ministry of Science and Technology of the People's Republic of China, National Institutes of Health, National Eye Institute