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@ARTICLE{Pohl:843669,
author = {Pohl, Anna and Anders, Silke and Chen, Hong and Patel,
Harshal Jayeshkumar and Heller, Julia and Reetz, Kathrin and
Mathiak, Klaus and Binkofski, Ferdinand},
title = {{I}mpaired {E}motional {M}irroring in {P}arkinson’s
{D}isease—{A} {S}tudy on {B}rain {A}ctivation during
{P}rocessing of {F}acial {E}xpressions},
journal = {Frontiers in neurology},
volume = {8},
issn = {1664-2295},
address = {Lausanne},
publisher = {Frontiers Research Foundation},
reportid = {FZJ-2018-01238},
pages = {682},
year = {2017},
abstract = {Background: Affective dysfunctions are common in patients
with Parkinson’s disease, but the underlying
neurobiological deviations have rarely been examined.
Parkinson’s disease is characterized by a loss of dopamine
neurons in the substantia nigra resulting in impairment of
motor and non-motor basal ganglia-cortical loops. Concerning
emotional deficits, some studies provide evidence for
altered brain processing in limbic- and
lateral-orbitofrontal gating loops. In a second line of
evidence, human premotor and inferior parietal homologs of
mirror neuron areas were involved in processing and
understanding of emotional facial expressions. We examined
deviations in brain activation during processing of facial
expressions in patients and related these to emotion
recognition accuracy.Methods: 13 patients and 13 healthy
controls underwent an emotion recognition task and a
functional magnetic resonance imaging (fMRI) measurement. In
the Emotion Hexagon test, participants were presented with
blends of two emotions and had to indicate which emotion
best described the presented picture. Blended pictures with
three levels of difficulty were included. During fMRI
scanning, participants observed video clips depicting
emotional, non-emotional, and neutral facial expressions or
were asked to produce these facial expressions
themselves.Results: Patients performed slightly worse in the
emotion recognition task, but only when judging the most
ambiguous facial expressions. Both groups activated inferior
frontal and anterior inferior parietal homologs of mirror
neuron areas during observation and execution of the
emotional facial expressions. During observation, responses
in the pars opercularis of the right inferior frontal gyrus,
in the bilateral inferior parietal lobule and in the
bilateral supplementary motor cortex were decreased in
patients. Furthermore, in patients, activation of the right
anterior inferior parietal lobule was positively related to
accuracy in the emotion recognition task.Conclusion: Our
data provide evidence for a contribution of human homologs
of monkey mirror areas to the emotion recognition deficit in
Parkinson’s disease.},
cin = {INM-4 / JARA-BRAIN / INM-11},
ddc = {610},
cid = {I:(DE-Juel1)INM-4-20090406 / $I:(DE-82)080010_20140620$ /
I:(DE-Juel1)INM-11-20170113},
pnm = {573 - Neuroimaging (POF3-573) / 572 - (Dys-)function and
Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-573 / G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29326646},
UT = {WOS:000418151900001},
doi = {10.3389/fneur.2017.00682},
url = {https://juser.fz-juelich.de/record/843669},
}