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@ARTICLE{Neuner:10458,
author = {Neuner, I. and Stöcker, T. and Kellermann, T. and Ermer,
V. and Wegener, H.P. and Eickhoff, S. B. and Schneider, F.
and Shah, J. N.},
title = {{E}lectrophysiology meets f{MRI}: {N}eural correlates of
the startle reflex assessed by simultaneous {EMG}-f{MRI}
data acquisition},
journal = {Human brain mapping},
volume = {31},
issn = {1065-9471},
address = {New York, NY},
publisher = {Wiley-Liss},
reportid = {PreJuSER-10458},
pages = {1675 - 1685},
year = {2010},
note = {Contract grant sponsor Bundesministerium fur Bildung und
Forschung (BMBF), Contract grant numbers. BMBF 01GO0104 (to
N.J S and Karl Zilles), BMBF 01GO0204 (to Brain Imaging
Centre West); Contract grant sponsors Medical Faculty of the
RWTH Aachen University ("Rotationsprogramm"; to IN)},
abstract = {The startle reflex provides a unique tool for the
investigation of sensorimotor gating and information
processing. Simultaneous EMG-fMRI acquisition (i.e., online
stimulation and recording in the MR environment) allows for
the quantitative assessment of the neuronal correlates of
the startle reflex and its modulations on a single trial
level. This serves as the backbone for a startle response
informed fMRI analysis, which is fed by data acquired in the
same brain at the same time. We here present the first MR
study using a single trial approach with simultaneous
acquired EMG and fMRI data on the human startle response in
15 healthy young men. It investigates the neural correlates
for isolated air puff startle pulses (PA), prepulse-pulse
inhibition (PPI), and prepulse facilitation (PPF). We
identified a common core network engaged by all three
conditions (PA, PPI, and PPF), consisting of bilateral
primary and secondary somatosensory cortices, right insula,
right thalamus, right temporal pole, middle cingulate
cortex, and cerebellum. The cerebellar vermis exhibits
distinct activation patterns between the startle
modifications. It is differentially activated with the
highest amplitude for PPF, a lower activation for PA, and
lowest for PPI. The orbital frontal cortex exhibits a
differential activation pattern, not for the type of startle
response but for the amplitude modification. For pulse alone
it is close to zero; for PPI it is activated. This is in
contrast to PPF where it shows deactivation. In addition,
the thalamus, the cerebellum, and the anterior cingulate
cortex add to the modulation of the startle reflex.},
keywords = {Adult / Brain: physiology / Brain Mapping /
Electromyography: methods / Humans / Image Processing,
Computer-Assisted / Magnetic Resonance Imaging: methods /
Male / Physical Stimulation / Startle Reaction: physiology /
J (WoSType)},
cin = {INM-2 / INM-4 / JARA-BRAIN},
ddc = {610},
cid = {I:(DE-Juel1)INM-2-20090406 / I:(DE-Juel1)INM-4-20090406 /
$I:(DE-82)080010_20140620$},
pnm = {Funktion und Dysfunktion des Nervensystems (FUEK409) /
89573 - Neuroimaging (POF2-89573)},
pid = {G:(DE-Juel1)FUEK409 / G:(DE-HGF)POF2-89573},
shelfmark = {Neurosciences / Neuroimaging / Radiology, Nuclear Medicine
$\&$ Medical Imaging},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:20205248},
UT = {WOS:000283641100005},
doi = {10.1002/hbm.20965},
url = {https://juser.fz-juelich.de/record/10458},
}