%0 Journal Article
%A Pollmann, S.
%A Weidner, R.
%A Müller, H. J.
%A Maertens, M.
%A von Cramon, D. Y.
%T Selective and interactive neural correlates of visual dimension changes and response changes
%J NeuroImage
%V 30
%@ 1053-8119
%C Orlando, Fla.
%I Academic Press
%M PreJuSER-57791
%P 254 - 265
%D 2006
%Z Record converted from VDB: 12.11.2012
%X In an event-related fMRI study, we investigated the neural correlates of visual dimension and response changes. We used a compound task, which required target selection by a singleton feature, a unique color or motion direction, before the appropriate motor response, which was determined by target orientation, could be selected. Both types of change elicited distinct patterns of activation, with dimension-change-related activation primarily in posterior visual areas and response-related activation primarily in motor-related areas of the parietal and frontal cortices. Response-change-related activation was delayed by about 1 s relative to dimension-change-related activation, suggesting that the latter is elicited by perceptual processes, whereas the former reflects response-related or post-response processes. Although dimension changes and response changes rely on different processes, they are not independent: response facilitation was observed for combined dimension and response repetitions, this facilitation, however, was disrupted by dimension changes.
%K Adult
%K Attention: physiology
%K Brain: physiology
%K Brain Mapping
%K Cerebral Cortex: physiology
%K Color Perception: physiology
%K Echo-Planar Imaging
%K Female
%K Frontal Lobe: physiology
%K Humans
%K Image Processing, Computer-Assisted
%K Magnetic Resonance Imaging
%K Male
%K Motion Perception: physiology
%K Motor Cortex: physiology
%K Nerve Net: physiology
%K Orientation: physiology
%K Oxygen: blood
%K Pattern Recognition, Visual: physiology
%K Reaction Time: physiology
%K Visual Pathways: physiology
%K Oxygen (NLM Chemicals)
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:16263311
%U <Go to ISI:>//WOS:000235696300025
%R 10.1016/j.neuroimage.2005.09.013
%U https://juser.fz-juelich.de/record/57791