Selective Attention Increases the Dependency of Cortical Responses on Visual Motion Coherence in Man.

@article{citeulike:2723865, abstract = {Attention improves visual discrimination and consequently allows to discern stimuli with low signal-to-noise ratios that otherwise would remain undetected. We used magnetoencephalography (MEG) to test whether neuromagnetic responses recorded from occipito-temporal cortex, reflecting the size of visual motion signals embedded in noise (motion coherence), would mirror the perceptual changes induced by attention. Attention directed to a given hemifield increased and decreased the coherence modulation of the MEG response over contralateral and ipsilateral visual cortex, respectively, indicating a change in the neuronal signal-to-noise ratio at the population level.}, address = {Department of General Neurology.}, author = {H\"{a}ndel, Barbara and Lutzenberger, Werner and Thier, Peter and Haarmeier, Thomas }, citeulike-article-id = {2723865}, issn = {1460-2199}, journal = {Cerebral cortex (New York, N.Y. : 1991)}, keywords = {arash, attention, control, kristina}, month = {April}, posted-at = {2008-04-27 14:05:52}, priority = {2}, title = {Selective Attention Increases the Dependency of Cortical Responses on Visual Motion Coherence in Man.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/18424779}, year = {2008} }

TY - JOUR ID - citeulike:2723865 L3 - citeulike-article-id:2723865 TI - Selective Attention Increases the Dependency of Cortical Responses on Visual Motion Coherence in Man. JF - Cerebral cortex (New York, N.Y. : 1991) AD - Department of General Neurology. SN - 1460-2199 N2 - Attention improves visual discrimination and consequently allows to discern stimuli with low signal-to-noise ratios that otherwise would remain undetected. We used magnetoencephalography (MEG) to test whether neuromagnetic responses recorded from occipito-temporal cortex, reflecting the size of visual motion signals embedded in noise (motion coherence), would mirror the perceptual changes induced by attention. Attention directed to a given hemifield increased and decreased the coherence modulation of the MEG response over contralateral and ipsilateral visual cortex, respectively, indicating a change in the neuronal signal-to-noise ratio at the population level. KW - arash KW - attention KW - control KW - kristina AU - Händel, Barbara AU - Lutzenberger, Werner AU - Thier, Peter AU - Haarmeier, Thomas PY - 2008/04/18/ UR - http://view.ncbi.nlm.nih.gov/pubmed/18424779 ER -