WOBIB: 24 - Büchel, et al. (1998) The functional anatom ...
 
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Christian Büchel; Oliver Josephs; Geraint Rees; R. Turner; C. D. Frith; Karl J. Friston. The functional anatomy of attention to visual motion. A functional MRI study. Brain 121 ( Pt 7):1281-94, 1998. PMID: 9679780. WOBIB: 24.

Attention can enhance or modulate neural responses to stimuli at early and late stages of sensory processing. We were interested in the modulatory effect of attention to visual motion on cortical responses as measured by functional MRI. Subjects were scanned during repeated presentations of identical stimuli (visual motion) while only the attentional component of the task was varied. Enhanced haemodynamic responses during attentive conditions defined an occipitoparietofrontal system, including sensory and association areas, as well as the medial thalamus and superior colliculus. Attentional modulation was not restricted to extrastriate areas (including V3a and the V5 complex) but was also evident, to a lesser degree, in early visual areas close to the calcarine fissure (V1/V2 border). Attention-related enhancement of cortical responsiveness is discussed in terms of data that implicate modulatory short-term changes in synaptic efficacy and reciprocal connections between striate, extrastriate, parietal and frontal areas. Given the similarity of our attentional network to that controlling eye movements, the results of this study are in accord with theories linking oculomotor control and attention.

Asymmetry: 0.63841 (left: -1, right: +1)

VRML2 file (123 Kb)

1 Moving dots versus stationary dots. 250 white dots moved radially from the fixation point in the middle of the screen in random directions towards the border of the screen. WOEXP: 76.
2 Attention to moving dots by detecting changes versus no attention to moving dots. 250 white dots moved radially from the fixation point in the middle of the screen in random directions towards the border of the screen. WOEXP: 77.


corner cube of WOBIB_24

Related - positive correlated volumes

+1: 1.00000 Christian Büchel; Oliver Josephs; Geraint Rees; R. Turner; C. D. Frith; Karl J. Friston. The functional anatomy of attention to visual motion. A functional MRI study. Brain 121 ( Pt 7):1281-94, 1998. PMID: 9679780. WOBIB: 24.

+2: 0.63645 Semir Zeki; R. J. Perry; A. Bartels. The processing of kinetic contours in the brain. Cerebral Cortex 13(2):189-202, 2003. PMID: 12507950. WOBIB: 52.

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+22: 0.40030 E. Grossman; M. Donnelly; R. Price; D. Pickens; V. Morgan; G. Neighbor; R. Blake. Brain areas involved in perception of biological motion. Journal of Cognitive Neuroscience 12(5):711-20, 2000. PMID: 11054914. WOBIB: 33.

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Antirelated - negatively correlated volumes

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