Effects of emotional valence and arousal on the voice perception network
作者： Patricia E. G. Bestelmeyer , Sonja A. Kotz , Pascal Belin
DOI: 10.1093/SCAN/NSX059
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摘要: Several theories conceptualise emotions along two main dimensions: valence (a continuum from negative to positive) and arousal that varies low high). These dimensions are typically treated as independent in many neuroimaging experiments, yet recent behavioural findings suggest they actually interdependent. This result has impact on design, analysis theoretical development. We were interested determining the extent of this interdependence both behaviourally neuroanatomically, well teasing apart any activation is specific each dimension. While we found extensive overlap for dimension traditional emotion areas (bilateral insulae, orbitofrontal cortex, amygdalae), also with characteristic relationships between modulations these BOLD signal change. Increases ratings related increased activations predominantly voice-sensitive cortices after variance explained by had been removed. In contrast, extreme bilateral cortices, hippocampi, anterior midcingulum medial orbito- superior frontal regions accounted for. Our results therefore do not support a complete segregation brain structures underpinning processing affective dimensions.
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