Neural dynamics of attentional resource allocation in early visual cortex: emotional scenes produce competitive interactions.

ABSTRACT: Salient emotional visual cues receive prioritized processing in human visual cortex. To what extent emotional facilitation relies on preattentional stimulus processing preceding semantic analysis remains controversial. Making use of steady-state visual evoke potentials frequency-tagged to meaningful complex emotional scenes and their scrambled versions, presented in a 4-Hz rapid serial visual presentation fashion, the current study tested temporal dynamics of semantic and emotional cue processing. The neural dynamics of bottom-up capture of attention driven by concrete images were analyzed under a passive-viewing-like scenario and in a competitive context, where a concurrent foreground task realized with a random dot kinematogram flickering at 15 Hz enabled the concurrent monitoring of top

SUBMITTER: de Echegaray J 

PROVIDER: S-EPMC11630067 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature