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Structural and functional connectivity of the subthalamic nucleus during vocal emotion decoding

Published in Social Cognitive and Affective Neuroscience. 2016, vol. 11, no. 2, p. 349–356
Abstract Our understanding of the role played by the subthalamic nucleus (STN) in human emotion has recently advanced with STN deep brain stimulation, a neurosurgical treatment for Parkinson's disease and obsessive-compulsive disorder. However, the potential presence of several confounds related to pathological models raises the question of how much they affect the rele- vance of observations regarding the physiological function of the STN itself. This underscores the crucial importance of ob- taining evidence from healthy participants. In this study, we tested the structural and functional connectivity between the STN and other brain regions related to vocal emotion in a healthy population by combining diffusion tensor imaging and psychophysiological interaction analysis from a high-resolution functional magnetic resonance imaging study. As ex- pected, we showed that the STN is functionally connected to the structures involved in emotional prosody decoding, not- ably the orbitofrontal cortex, inferior frontal gyrus, auditory cortex, pallidum and amygdala. These functional results were corroborated by probabilistic fiber tracking, which revealed that the left STN is structurally connected to the amygdala and the orbitofrontal cortex. These results confirm, in healthy participants, the role played by the STN in human emotion and its structural and functional connectivity with the brain network involved in vocal emotions
Keywords EmotionfMRIObsessive-compulsive disorderParkinson's diseaseSubthalamic nucleus
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Article (Published version) (472 Kb) - document accessible for UNIGE members only Limited access to UNIGE
Research groups Affective sciences
Neuroscience de l'émotion et dynamiques affectives (NEAD)
Projects FNS: 105314_1245727
FNS: Emotional Prosody
(ISO format)
PERON, Julie Anne et al. Structural and functional connectivity of the subthalamic nucleus during vocal emotion decoding. In: Social Cognitive and Affective Neuroscience, 2016, vol. 11, n° 2, p. 349–356. doi: 10.1093/scan/nsv118 https://archive-ouverte.unige.ch/unige:82073

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Deposited on : 2016-03-22

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