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@ARTICLE{Chen:868149,
author = {Chen, Siyi and Weidner, Ralph and Zeng, Hang and Fink,
Gereon R. and Müller, Hermann J. and Conci, Markus},
title = {{T}racking the completion of parts into whole objects:
{R}etinotopic activation in response to illusory figures in
the lateral occipital complex},
journal = {NeuroImage},
volume = {207},
issn = {1053-8119},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {FZJ-2019-06723},
pages = {116426 -},
year = {2020},
abstract = {Illusory figures demonstrate the visual system’s ability
to integrate separate parts into coherent, whole objects.
The present study was performed to track the neuronal object
construction process in human observers, by incrementally
manipulating the grouping strength within a given
configuration until the emergence of a whole-object
representation. Two tasks were employed: First, in the
spatial localization task, object completion could
facilitate performance and was task-relevant, whereas it was
irrelevant in the second, luminance discrimination task.
Concurrent functional magnetic resonance imaging (fMRI) used
spatial localizers to locate brain regions representing
task-critical illusory-figure parts to investigate whether
the step-wise object construction process would modulate
neural activity in these localized brain regions. The
results revealed that both V1 and the lateral occipital
complex (LOC, with sub-regions LO1 and LO2) were involved in
Kanizsa figure processing. However, completion-specific
activations were found predominantly in LOC, where neural
activity exhibited a modulation in accord with the
configuration’s grouping strength, whether or not the
configuration was relevant to performing the task at hand.
Moreover, right LOC activations were confined to LO2 and
responded primarily to surface and shape completions,
whereas left LOC exhibited activations in both LO1 and LO2
and was related to encoding shape structures with more
detail. Together, these results demonstrate that various
grouping properties within a visual scene are integrated
automatically in LOC, with sub-regions located in different
hemispheres specializing in the component sub-processes that
render completed objects.},
cin = {INM-3},
ddc = {610},
cid = {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:31794856},
UT = {WOS:000509662600056},
doi = {10.1016/j.neuroimage.2019.116426},
url = {https://juser.fz-juelich.de/record/868149},
}