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@ARTICLE{Kleineberg:845433,
author = {Kleineberg, Nina and Dovern, Anna and Binder, Ellen and
Grefkes, Christian and Eickhoff, Simon and Fink, Gereon R.
and Weiss, Peter H.},
title = {{A}ction and semantic tool knowledge - {E}ffective
connectivity in the underlying neural networks},
journal = {Human brain mapping},
volume = {39},
number = {9},
issn = {1065-9471},
address = {New York, NY},
publisher = {Wiley-Liss},
reportid = {FZJ-2018-02697},
pages = {3473-3486},
year = {2018},
note = {Funding information Medical Faculty, University of Cologne,
Grant/Award Number: 3615/0129/31; Marga‐ and Walter‐Boll
Stiftung; Helmholtz Portfolio Theme “Supercomputing and
Modeling for the Human Brain”; University of Cologne
Emerging Groups Initiative (CONNECT group) implemented into
the Institutional Strategy of the University of Cologne and
the German Excellence Initiative},
abstract = {Evidence from neuropsychological and imaging studies
indicate that action and semantic knowledge about tools draw
upon distinct neural substrates, but little is known about
the underlying interregional effective connectivity. With
fMRI and dynamic causal modeling (DCM) we investigated
effective connectivity in the left‐hemisphere (LH) while
subjects performed (i) a function knowledge and (ii) a value
knowledge task, both addressing semantic tool knowledge, and
(iii) a manipulation (action) knowledge task. Overall, the
results indicate crosstalk between action nodes and semantic
nodes. Interestingly, effective connectivity was weakened
between semantic nodes and action nodes during the
manipulation task. Furthermore, pronounced modulations of
effective connectivity within the fronto‐parietal action
system of the LH (comprising lateral occipito‐temporal
cortex, intraparietal sulcus, supramarginal gyrus, inferior
frontal gyrus) were observed in a bidirectional manner
during the processing of action knowledge. In contrast, the
function and value knowledge tasks resulted in a significant
strengthening of the effective connectivity between visual
cortex and fusiform gyrus. Importantly, this modulation was
present in both semantic tasks, indicating that processing
different aspects of semantic knowledge about tools evokes
similar effective connectivity patterns. Data revealed that
interregional effective connectivity during the processing
of tool knowledge occurred in a bidirectional manner with a
weakening of connectivity between areas engaged in action
and semantic knowledge about tools during the processing of
action knowledge. Moreover, different semantic tool
knowledge tasks elicited similar effective connectivity
patterns.},
cin = {INM-7 / INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-7-20090406 / I:(DE-Juel1)INM-3-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29700893},
UT = {WOS:000441276600001},
doi = {10.1002/hbm.24188},
url = {https://juser.fz-juelich.de/record/845433},
}