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@ARTICLE{PaasOliveros:1014930,
author = {Paas Oliveros, Lya K and Cieslik, Edna and Pieczykolan,
Aleks and Pläschke, Rachel N and Eickhoff, Simon B and
Langner, Robert},
title = {{B}rain functional characterization of response-code
conflict in dual-tasking and its modulation by age},
journal = {Cerebral cortex},
volume = {33},
number = {18},
issn = {1047-3211},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {FZJ-2023-03485},
pages = {10155–10180},
year = {2023},
note = {This study was supported by the Deutsche
Forschungsgemeinschaft (DFG, German Research Foundation, LA
3071/3-1, SFB 1451), the National Institute of Mental Health
(R01-MH074457), the Helmholtz Portfolio Theme Supercomputing
and Modeling for the Human Brain, and the European Union’s
Horizon 2020 Research and Innovation Program under Grant
Agreements 720270 (HBP SGA1), 785907 (HBP SGA2).},
abstract = {Crosstalk between conflicting response codes contributes to
interference in dual-tasking, an effect exacerbated in
advanced age. Here, we investigated (i) brain activity
correlates of such response-code conflicts, (ii) activity
modulations by individual dual-task performance and related
cognitive abilities, (iii) task-modulated connectivity
within the task network, and (iv) age-related differences in
all these aspects. Young and older adults underwent fMRI
while responding to the pitch of tones through spatially
mapped speeded button presses with one or two hands
concurrently. Using opposing stimulus–response mappings
between hands, we induced conflict between simultaneously
activated response codes. These response-code conflicts
elicited activation in key regions of the multiple-demand
network. While thalamic and parietal areas of the
conflict-related network were modulated by attentional,
working-memory and task-switching abilities, efficient
conflict resolution in dual-tasking mainly relied on
increasing supplementary motor activity. Older adults showed
non-compensatory hyperactivity in left superior frontal
gyrus, and higher right premotor activity was modulated by
working-memory capacity. Finally, connectivity between
premotor or parietal seed regions and the conflict-sensitive
network was neither conflict-specific nor age-sensitive.
Overall, resolving dual-task response-code conflict
recruited substantial parts of the multiple-demand network,
whose activity and coupling, however, were only little
affected by individual differences in task performance or
age.},
cin = {INM-7},
ddc = {610},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5252 - Brain Dysfunction and Plasticity (POF4-525)},
pid = {G:(DE-HGF)POF4-5252},
typ = {PUB:(DE-HGF)16},
pubmed = {37540164},
UT = {WOS:001040415400001},
doi = {10.1093/cercor/bhad273},
url = {https://juser.fz-juelich.de/record/1014930},
}