Context-dependent attentional spotlight in pulvinar-V1 interaction.
Neuroimage
; 279: 120341, 2023 10 01.
Article
en En
| MEDLINE
| ID: mdl-37619793
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.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Pulvinar
Límite:
Humans
Idioma:
En
Revista:
Neuroimage
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
2023
Tipo del documento:
Article