title: Cerebral hemodynamics during discrimination of prosodic and semantic emotion in speech studied by transcranial doppler ultrasonography.
abstract: Simultaneous measurement of blood flow velocity (BFV) in the middle cerebral arteries was achieved by transcranial Doppler ultrasonography in 36 right-handed volunteers who were instructed to identify the emotion conveyed by prosody or semantics of a number of sentences. The tasks were performed under 2 levels of interference: neutral versus discordant affective value of the modality that had to be ignored. A multivariate analysis of variance showed a significant bilateral increase in BFV during the discordant conditions reflecting increased attentional demand. A significant left-hemispheric lateralization of BFV was observed as emotional semantics were labeled. When attention was shifted to affective prosody, the lateralization effect disappeared as a result of a marked increase in right-hemispheric BFV.
authors.affiliation: Laboratory for Neuropsychology, Ghent University, Belgium. guy.vingerhoets@rug.ac.be
authors.forename: Guy
authors.initials: G
authors.lastname: Vingerhoets
authors.forename: Celine
authors.initials: C
authors.lastname: Berckmoes
authors.forename: Nathalie
authors.initials: N
authors.lastname: Stroobant
mesh_terms: D000328:Adult; D001143:Arousal / Q000502:physiology; D001288:Attention / Q000502:physiology*; D001783:Blood Flow Velocity / Q000502:physiology; D002540:Cerebral Cortex / Q000098:blood supply*; D004292:Dominance, Cerebral / Q000502:physiology*; D004644:Emotions / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D020768:Middle Cerebral Artery / Q000000981:diagnostic imaging; D012016:Reference Values; D012660:Semantics; D013061:Speech Acoustics; D013067:Speech Perception / Q000502:physiology*; D017585:Ultrasonography, Doppler, Transcranial