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@ARTICLE{Dogan:201200,
author = {Dogan, I. and Sass, C. and Mirzazade, S. and Kleiman, A.
and Werner, C. J. and Pohl, A. and Schiefer, J. and
Binkofski, F. and Schulz, J. B. and Shah, N. J. and Reetz,
K.},
title = {{N}eural correlates of impaired emotion processing in
manifest {H}untington's disease},
journal = {Social cognitive and affective neuroscience},
volume = {9},
number = {5},
issn = {1749-5024},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {FZJ-2015-03505},
pages = {671 - 680},
year = {2014},
abstract = {The complex phenotype of Huntington’s disease (HD)
encompasses motor, psychiatric and cognitive dysfunctions,
including early impairments in emotion recognition. In this
first functional magnetic resonance imaging study, we
investigated emotion-processing deficits in 14 manifest HD
patients and matched controls. An emotion recognition task
comprised short video clips displaying one of six basic
facial expressions (sadness, happiness, disgust, fear, anger
and neutral). Structural changes between patients and
controls were assessed by means of voxel-based morphometry.
Along with deficient recognition of negative emotions,
patients exhibited predominantly lower neural response to
stimuli of negative valences in the amygdala, hippocampus,
striatum, insula, cingulate and prefrontal cortices, as well
as in sensorimotor, temporal and visual areas. Most of the
observed reduced activity patterns could not be explained
merely by regional volume loss. Reduced activity in the
thalamus during fear correlated with lower thalamic volumes.
During the processing of sadness, patients exhibited
enhanced amygdala and hippocampal activity along with
reduced recruitment of the medial prefrontal cortex. Higher
amygdala activity was related to more pronounced amygdala
atrophy and disease burden. Overall, the observed
emotion-related dysfunctions in the context of structural
neurodegeneration suggest both disruptions of
striatal-thalamo-cortical loops and potential compensation
mechanism with greater disease severity in manifest HD.},
cin = {INM-4 / JARA-BRAIN},
ddc = {610},
cid = {I:(DE-Juel1)INM-4-20090406 / $I:(DE-82)080010_20140620$},
pnm = {332 - Imaging the Living Brain (POF2-332)},
pid = {G:(DE-HGF)POF2-332},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000336489000014},
pubmed = {pmid:23482620},
doi = {10.1093/scan/nst029},
url = {https://juser.fz-juelich.de/record/201200},
}