This title appears in the Scientific Report :
2010
Please use the identifier:
http://dx.doi.org/10.1111/j.1460-9568.2010.07203.x in citations.
Neuromagnetic oscillations to emotional faces and prosody
Neuromagnetic oscillations to emotional faces and prosody
Higher association cortices as well as unisensory areas can support multisensory integration [D. Senkowski et al. (2008) Trends Neurosci., 31, 401-409]. The present study investigated whether audiovisual integration of emotional information emerges early at unisensory or later at higher association...
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Personal Name(s): | Chen, Y.H. |
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Edgar, J.C. / Holroyd, T. / Dammers, J. / Thönnessen, H. / Roberts, T.P.L. / Mathiak, K. | |
Contributing Institute: |
Strukturelle und funktionelle Organisation des Gehirns; INM-1 JARA-BRAIN; JARA-BRAIN Physik der Medizinischen Bildgebung; INM-4 |
Published in: | European journal of neuroscience, 31 (2010) S. 1818 - 1827 |
Imprint: |
Oxford [u.a.]
Blackwell
2010
|
Physical Description: |
1818 - 1827 |
DOI: |
10.1111/j.1460-9568.2010.07203.x |
PubMed ID: |
20584186 |
Document Type: |
Journal Article |
Research Program: |
Neuroimaging Funktion und Dysfunktion des Nervensystems |
Series Title: |
European Journal of Neuroscience
31 |
Subject (ZB): | |
Publikationsportal JuSER |
Higher association cortices as well as unisensory areas can support multisensory integration [D. Senkowski et al. (2008) Trends Neurosci., 31, 401-409]. The present study investigated whether audiovisual integration of emotional information emerges early at unisensory or later at higher association cortices. Emotional stimuli were presented in three blocks: audiovisual (AV), auditory (A) and visual (V). Eighteen participants performed a delayed emotional recognition task (happy, angry or neutral prosody and/or facial expression) while whole-brain magnetoencephalography (MEG) data were obtained. Time-frequency evoked and total power analyses were performed on the sensor data, and source localization of the frequencies of interest performed via a synthetic aperture magnetometry beamformer. To examine crossmodal integration between bimodal and unimodal conditions, two contrasts were specified: AV > A and AV > V. In the AV > A contrast, early effects were observed on both the temporal and the occipital evoked responses. However, at the source level, early alpha suppression was limited to the occipital sources without changes in temporal cortices. In the AV > V contrast, sensor and source findings revealed increased alpha suppression only in temporal cortices, with no changes in visual cortex. Thus, no crossmodal effect in unisensory areas emerged. Instead, increased frontal alpha activity in both the AV > A and AV > V contrasts supports the view that affective information from face and prosody converges at higher association cortices. |