title: Attentional awakening, resource allocation and the focus of temporal attention.
abstract: Attentional awakening (AA) is an impairment in the identification of target stimuli that are presented early in a rapidly presented sequence of visual stimuli. Here we investigate whether AA is related to resource allocation, measured as amplitude of the P3 event-related potential and/or variance in the focus of temporal attention, measured as P3 phase distribution. We observed a relationship between P3 amplitude and AA that depended strongly on targets' a posteriori probabilities. Evidence was found for a link between performance and P3 phase distributions, but a relationship between AA and P3 phase distributions was not evident. These findings suggest that resource allocation is a relevant factor for AA whereas the variance in the focus of temporal attention contributes only little to AA.
authors.affiliation: Department of Psychology, Neuropsychology Lab, Carl von Ossietzky University Oldenburg, Germany. cornelia.kranczioch@uni-oldenburg.de
authors.forename: Cornelia
authors.initials: C
authors.lastname: Kranczioch
authors.forename: Dale
authors.initials: D
authors.lastname: Bryant
mesh_terms: D000328:Adult; D001143:Arousal / Q000502:physiology*; D001288:Attention / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010470:Perceptual Masking / Q000502:physiology*; D013998:Time Perception / Q000502:physiology*; D055815:Young Adult