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Modality-general and modality-specific audiovisual valence processing
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DOI：10.1016/j.cortex.2021.01.022.png)
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Abstract
En 中文
A fundamental question in affective neuroscience is whether there is a common hedonic system for valence processing independent of modality, or there are distinct neural sys-tems for different modalities. To address this question, we used both region of interest and whole-brain representational similarity analyses on functional magnetic resonance im-aging data to identify modality-general and modality-specific brain areas involved in valence processing across visual and auditory modalities. First, region of interest analyses showed that the superior temporal cortex was associated with both modality-general and auditory-specific models, while the primary visual cortex was associated with the visual-specific model. Second, the whole-brain searchlight analyses also identified both modality-general and modality-specific representations. The modality-general regions included the superior temporal, medial superior frontal, inferior frontal, precuneus, pre -central, postcentral, supramarginal, paracentral lobule and middle cingulate cortices. The modality-specific regions included both perceptual cortices and higher-order brain areas. The valence representations derived from individualized behavioral valence ratings were consistent with these results. Together, these findings suggest both modality-general and modality-specific representations of valence. (c) 2021 Elsevier Ltd. All rights reserved.
Keywords:
Emotion
Affect
fMRI
Modality-general
Modality-specific
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