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Wabnegger, A; Ille, R; Schwingenschuh, P; Katschnig-Winter, P; Kögl-Wallner, M; Wenzel, K; Schienle, A.
Facial Emotion Recognition in Parkinson's Disease: An fMRI Investigation.
PLoS One. 2015; 10(8):e0136110-e0136110 Doi: 10.1371/journal.pone.0136110 [OPEN ACCESS]
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Co-authors Med Uni Graz: Ille Rottraut; Katschnig-Winter Petra; Schwingenschuh Petra; Wenzel Karoline
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Abstract:: Findings of behavioral studies on facial emotion recognition in Parkinson's disease (PD) are very heterogeneous. Therefore, the present investigation additionally used functional magnetic resonance imaging (fMRI) in order to compare brain activation during emotion perception between PD patients and healthy controls. We included 17 nonmedicated, nondemented PD patients suffering from mild to moderate symptoms and 22 healthy controls. The participants were shown pictures of facial expressions depicting disgust, fear, sadness, and anger and they answered scales for the assessment of affective traits. The patients did not report lowered intensities for the displayed target emotions, and showed a comparable rating accuracy as the control participants. The questionnaire scores did not differ between patients and controls. The fMRI data showed similar activation in both groups except for a generally stronger recruitment of somatosensory regions in the patients. Since somatosensory cortices are involved in the simulation of an observed emotion, which constitutes an important mechanism for emotion recognition, future studies should focus on activation changes within this region during the course of disease.
Find related publications in this database (using NLM MeSH Indexing): Case-Control Studies -; Emotions - physiology; Facial Expression -; Female -; Humans -; Magnetic Resonance Imaging - methods; Male -; Middle Aged -; Neuropsychological Tests -; Parkinson Disease - physiopathology; Pattern Recognition, Visual -