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@ARTICLE{Trevisi:850946,
author = {Trevisi, Gianluca and Eickhoff, Simon and Chowdhury,
Fahmida and Jha, Ashwani and Rodionov, Roman and Nowell,
Mark and Miserocchi, Anna and McEvoy, Andrew W. and Nachev,
Parashkev and Diehl, Beate},
title = {{P}robabilistic electrical stimulation mapping of human
medial frontal cortex},
journal = {Cortex},
volume = {109},
issn = {0010-9452},
address = {Paris},
publisher = {Elsevier Masson},
reportid = {FZJ-2018-04677},
pages = {336-346},
year = {2018},
note = {We are grateful to the Wolfson Foundation and the Epilepsy
Society for supporting the Epilepsy Society MRI scanner.
This work was supported by the National Institute for Health
Research University College London Hospitals Biomedical
Research Centre. PN is funded by the Wellcome Trust, the
Department of Health, and the UCLH NIHR Biomedical Research
Centre. BD receives funding from NIH –National Institute
of Neurological Disorders and Stroke (U01-NS090407; The
Center for SUDEP Research). AJ was funded by the Guarantors
of Brain and the UCLH NIHR BRC. SBE was funded by the
National Institute of Mental Health (R01-MH074457), the
Helmholtz Portfolio Theme "Supercomputing and Modelling for
the Human Brain" and the European Union's Horizon 2020
Research and Innovation Programme under Grant Agreement No.
7202070 (HBP SGA1).},
abstract = {The medial frontal cortex remains functionally
ill-understood; this is reflected by the heterogeneity of
behavioural outcomes following damage to the region. We aim
to use the rich information provided by extraoperative
direct electrical cortical stimulation to enhance our
understanding of its functional anatomy. Examining a cohort
of 38 epilepsy patients undergoing direct electrical
cortical stimulation in the context of presurgical
evaluation, we reviewed stimulation findings and classified
them in a behavioural framework (positive motor, negative
motor, somatosensory, speech disturbances, and "other"). The
spatially discrete cortical stimulation-derived data points
were then transformed into continuous probabilistic maps,
thereby enabling the voxel-wise spatial inference widely
used in the analysis of functional and structural imaging
data. A functional map of stimulation findings of the medial
wall emerged. Positive motor responses occurred in 141
stimulations $(31.2\%),$ anatomically located on the
paracentral lobule (threshold at p<.05), extending no
further than the vertical anterior commissure (VCA) line.
Thirty negative motor responses were observed $(6.6\%),$
localised to the VCA line (at p < .001 uncorrected). In 43
stimulations $(9.5\%)$ a somatosensory response localised to
the caudal cingulate zone (at p < .001 uncorrected), with a
second region posterior to central sulcus. Speech
disturbances were elicited in 38 stimulations $(8.4\%),$
more commonly but not exclusively from the language fMRI
dominant side, just anterior to VCA (p < .001 uncorrected).
In only 2 stimulations, the patient experienced a subjective
"urge" to move in the absence of overt movement. Classifying
motor behaviour along the dimensions of effector, and
movement vs arrest, we derive a wholly data-driven
stimulation map of the medial wall, powered by the largest
number of stimulations of the region reported (n = 452) in
patients imaged with MRI. This model and the underlying data
provide a robust framework for understanding the
architecture of the region through the joint analysis of
disruptive and correlative anatomical maps.},
cin = {INM-7},
ddc = {570},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572) / 571 -
Connectivity and Activity (POF3-571) / 574 - Theory,
modelling and simulation (POF3-574) / HBP SGA1 - Human Brain
Project Specific Grant Agreement 1 (720270)},
pid = {G:(DE-HGF)POF3-572 / G:(DE-HGF)POF3-571 /
G:(DE-HGF)POF3-574 / G:(EU-Grant)720270},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30057247},
UT = {WOS:000452945800028},
doi = {10.1016/j.cortex.2018.06.015},
url = {https://juser.fz-juelich.de/record/850946},
}