Spatial attention shifting to fearful faces depends on visual awareness in attentional blink: An ERP study. (29th July 2022)

• Record Type: Journal Article
• Authors: Qiu, Zeguo; Becker, Stefanie I.; Pegna, Alan J.
• Is Part Of: Neuropsychologia. Number 172(2022)
• Publication Date: 2022-07-29
• Subjects: Visual awareness -- Spatial attention -- VAN -- N2pc -- Attentional blink -- Emotional faces; Neuropsychology -- Periodicals; Neurology -- Periodicals; Psychophysiology -- Periodicals; Neuropsychologie -- Périodiques; Neuropsychology; Periodicals; Electronic journals; 616.8
• DOI: 10.1016/j.neuropsychologia.2022.108283
• Languages: English
• ISSNs: 0028-3932

Abstract

Abstract: It remains unclear to date whether spatial attention towards emotional faces is contingent on, or independent of visual awareness. To investigate this question, a bilateral attentional blink paradigm was used in which lateralised fearful faces were presented at various levels of detectability. Twenty-six healthy participants were presented with two rapid serial streams of human faces, while they attempted to detect a pair of target faces (T2) displayed in close or distant succession of a first target pair (T1). Spatial attention shifting to the T2 fearful faces, indexed by the N2-posterior-contralateral component, was dependent on visual awareness and its magnitude covaried with the visual awareness negativity, a neural marker of awareness at the perceptual level. Additionally, information consolidation in working memory, indexed by the sustained posterior contralateral negativity, positively correlated with the level of visual awareness and spatial attention shifting. These findings demonstrate that spatial attention shifting to fearful faces depends on visual awareness, and these early processes are closely linked to information maintenance in working memory. Highlights: Spatial attention shifts to fearful faces depended on early perceptual awareness. Working memory consolidation positively correlated with visual awareness. Working memory consolidation positively correlated with spatial attention shifts.