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@ARTICLE{Clos:132206,
author = {Clos, Mareike and Diederen, Kelly M J and Meijering, Anne
Lotte and Sommer, Iris E and Eickhoff, Simon},
title = {{A}berrant connectivity of areas for decoding degraded
speech in patients with auditory verbal hallucinations.},
journal = {Brain structure $\&$ function},
volume = {219},
number = {2},
issn = {1863-2661},
address = {Berlin},
publisher = {Springer},
reportid = {FZJ-2013-01437},
pages = {581-594},
year = {2014},
abstract = {Auditory verbal hallucinations (AVH) are a hallmark of
psychotic experience. Various mechanisms including
misattribution of inner speech and imbalance between
bottom-up and top-down factors in auditory perception
potentially due to aberrant connectivity between frontal and
temporo-parietal areas have been suggested to underlie AVH.
Experimental evidence for disturbed connectivity of networks
sustaining auditory-verbal processing is, however, sparse.
We compared functional resting-state connectivity in 49
psychotic patients with frequent AVH and 49 matched
controls. The analysis was seeded from the left middle
temporal gyrus (MTG), thalamus, angular gyrus (AG) and
inferior frontal gyrus (IFG) as these regions are implicated
in extracting meaning from impoverished speech-like sounds.
Aberrant connectivity was found for all seeds. Decreased
connectivity was observed between the left MTG and its right
homotope, between the left AG and the surrounding inferior
parietal cortex (IPC) and the left inferior temporal gyrus,
between the left thalamus and the right cerebellum, as well
as between the left IFG and left IPC, and dorsolateral and
ventrolateral prefrontal cortex (DLPFC/VLPFC). Increased
connectivity was observed between the left IFG and the
supplementary motor area (SMA) and the left insula and
between the left thalamus and the left fusiform
gyrus/hippocampus. The predisposition to experience AVH
might result from decoupling between the speech production
system (IFG, insula and SMA) and the self-monitoring system
(DLPFC, VLPFC, IPC) leading to misattribution of inner
speech. Furthermore, decreased connectivity between nodes
involved in speech processing (AG, MTG) and other regions
implicated in auditory processing might reflect aberrant
top-down influences in AVH.},
cin = {INM-1 / INM-2},
ddc = {610},
cid = {I:(DE-Juel1)INM-1-20090406 / I:(DE-Juel1)INM-2-20090406},
pnm = {333 - Pathophysiological Mechanisms of Neurological and
Psychiatric Diseases (POF2-333)},
pid = {G:(DE-HGF)POF2-333},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:23423461},
UT = {WOS:000335737500011},
doi = {10.1007/s00429-013-0519-5},
url = {https://juser.fz-juelich.de/record/132206},
}