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  Abstract Representations of Associated Emotions in the Human Brain

Kim, J., Schultz, J., Rohe, T., Wallraven, C., Lee, S.-W., & Bülthoff, H. (2015). Abstract Representations of Associated Emotions in the Human Brain. The Journal of Neuroscience, 35(14), 5655-5663. doi:10.1523/JNEUROSCI.4059-14.2015.

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 Urheber:
Kim, J, Autor           
Schultz, J1, 2, Autor           
Rohe, T1, 2, Autor           
Wallraven, C, Autor           
Lee, S-W, Autor
Bülthoff, HH1, 2, Autor           
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Zusammenfassung: Emotions can be aroused by various kinds of stimulus modalities. Recent neuroimaging studies indicate that several brain regions represent emotions at an abstract level, i.e., independently from the sensory cues from which they are perceived (e.g., face, body, or voice stimuli). If emotions are indeed represented at such an abstract level, then these abstract representations should also be activated by the memory of an emotional event. We tested this hypothesis by asking human participants to learn associations between emotional stimuli (videos of faces or bodies) and non-emotional stimuli (fractals). After successful learning, fMRI signals were recorded during the presentations of emotional stimuli and emotion-associated fractals. We tested whether emotions could be decoded from fMRI signals evoked by the fractal stimuli using a classifier trained on the responses to the emotional stimuli (and vice versa). This was implemented as a whole-brain searchlight, multivoxel activation pattern analysis, which revealed successful emotion decoding in four brain regions: posterior cingulate cortex (PCC), precuneus, MPFC, and angular gyrus. The same analysis run only on responses to emotional stimuli revealed clusters in PCC, precuneus, and MPFC. Multidimensional scaling analysis of the activation patterns revealed clear clustering of responses by emotion across stimulus types. Our results suggest that PCC, precuneus, and MPFC contain representations of emotions that can be evoked by stimuli that carry emotional information themselves or by stimuli that evoke memories of emotional stimuli, while angular gyrus is more likely to take part in emotional memory retrieval.

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 Datum: 2015-04
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1523/JNEUROSCI.4059-14.2015
BibTex Citekey: KimSWLB2015
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Titel: The Journal of Neuroscience
  Andere : J. Neurosci.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Baltimore, MD : The Society
Seiten: - Band / Heft: 35 (14) Artikelnummer: - Start- / Endseite: 5655 - 5663 Identifikator: ISSN: 0270-6474
CoNE: https://pure.mpg.de/cone/journals/resource/954925502187