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@ARTICLE{Waberski:61918,
author = {Waberski, T. D. and Gobbelé, R. and Lamberty, K. and
Buchner, H. and Marshall, J. C. and Fink, G. R.},
title = {{T}iming of visuo-spatial information processing:
{E}lectrical source imaging related to line bisection
judgements},
journal = {Neuropsychologia},
volume = {46},
issn = {0028-3932},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-61918},
pages = {1201 - 1210},
year = {2008},
note = {Record converted from VDB: 12.11.2012},
abstract = {This study deconvolves the temporal dynamics of the neural
processes underlying line bisection judgements (i.e., the
landmark task). Event-related potentials (ERPs) were
recorded from 96 scalp electrodes in 10 healthy right-handed
male subjects while they were judging whether horizontal
lines were correctly prebisected. In the control task,
subjects judged whether or not the horizontal line was
transected by a vertical line, irrespective of its position.
Using a current density reconstruction approach, source
maxima in the time range from 50 to 400ms after stimulus
onset were localized and the time courses of activation were
elaborated. Five regions, corresponding to those revealed by
our previous fMRI studies (e.g., [Fink, G. R., Marshall, J.
C., Shah, N. J., Weiss, P. H., Halligan, P. W.,
Grosse-Ruyken, et al. (2000). Line bisection judgments
implicate right parietal cortex and cerebellum as assessed
by fMRI. Neurology, 54, 1324-1331]), were identified as
contributing significant source activity related to line
bisection judgements: right middle occipital gyrus (Brodmann
area; BA18); bilateral inferior occipital gyrus (BA19);
right superior posterior parietal cortex (BA7) and right
inferior posterior parietal cortex (BA40). Temporal
deconvolution indicated sequential activation of these
regions starting at BA18 as early as 90ms post-stimulus
onset, followed by the successive activation of the right
superior posterior parietal (BA7), bilateral inferior
occipital (BA19) and right inferior posterior parietal
cortex (BA40). Three of these areas (BA18, BA17 and BA19)
became reactivated within 250ms of stimulus onset. The data
provide evidence for an early involvement of the right
hemispheric parietal network in visuo-spatial information
processing. Furthermore, the temporal deconvolution of the
electrophysiological data suggest that iterative processes
between and within parietal (dorsal path) and occipital
areas (ventral path) mediate bisection judgements.},
keywords = {Adult / Algorithms / Cluster Analysis / Data
Interpretation, Statistical / Electroencephalography /
Evoked Potentials: physiology / Head / Humans / Image
Processing, Computer-Assisted / Male / Models, Anatomic /
Models, Neurological / Psychometrics / Psychomotor
Performance: physiology / Reaction Time: physiology / Space
Perception: physiology / Visual Cortex: physiology / Visual
Perception: physiology / J (WoSType)},
cin = {INB-3},
ddc = {610},
cid = {I:(DE-Juel1)INB-3-20090406},
pnm = {Funktion und Dysfunktion des Nervensystems},
pid = {G:(DE-Juel1)FUEK409},
shelfmark = {Behavioral Sciences / Neurosciences / Psychology,
Experimental},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:18249421},
UT = {WOS:000256789500002},
doi = {10.1016/j.neuropsychologia.2007.10.024},
url = {https://juser.fz-juelich.de/record/61918},
}