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@ARTICLE{CorradiDellAcqua:187876,
author = {Corradi-Dell'Acqua, C. and Fink, G. R. and Weidner, R.},
title = {{S}electing {C}ategory {S}pecific {V}isual {I}nformation:
{T}op-down and {B}ottom-up {C}ontrol of {O}bject {B}ased
{A}ttention.},
journal = {Consciousness and cognition},
volume = {35},
issn = {1053-8100},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {FZJ-2015-01391},
pages = {330 - 341},
year = {2015},
abstract = {The ability to select, within the complexity of sensory
input, the information most relevant for our purposes is
influenced by both internal settings (i.e., top-down
control) and salient features of external stimuli (i.e.,
bottom-up control). We here investigated using fMRI the
neural underpinning of the interaction of top-down and
bottom-up processes, as well as their effects on
extrastriate areas processing visual stimuli in a
category-selective fashion. We presented photos of bodies or
buildings embedded into frequency-matched visual noise to
the subjects. Stimulus saliency changed gradually due to an
altered degree to which photos stood-out in relation to the
surrounding noise (hence generating stronger bottom-up
control signals). Top-down settings were manipulated via
instruction: participants were asked to attend one stimulus
category (i.e., “is there a body?” or “is there a
building?”). Highly salient stimuli that were inconsistent
with participants’ attentional top-down template activated
the inferior frontal junction and dorsal parietal regions
bilaterally. Stimuli consistent with participants’ current
attentional set additionally activated insular cortex and
the parietal operculum. Furthermore, the extrastriate body
area (EBA) exhibited increased neural activity when
attention was directed to bodies. However, the latter effect
was found only when stimuli were presented at intermediate
saliency levels, thus suggesting a top-down modulation of
this region only in the presence of weak bottom-up signals.
Taken together, our results highlight the role of the
inferior frontal junction and posterior parietal regions in
integrating bottom-up and top-down attentional control
signals.},
cin = {INM-3},
ddc = {150},
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},
UT = {WOS:000357000500033},
pubmed = {pmid:25735196},
doi = {10.1016/j.concog.2015.02.006},
url = {https://juser.fz-juelich.de/record/187876},
}