Abstract
Our results suggest that the MT/V5+ complex in humans contains neurons sensitive to abrupt changes in the direction of moving stimuli. We also identified an area in the right IPL activated by such changes. The latter finding could have at least two different explanations. First, that the right area IPL is specifically involved in detecting changes in the direction of moving stimuli. Second, that the right area IPL is involved in the detection of transient events independently of the type of sensory signal causing the event. This last explanation agrees with previous reports of area IPL involved in bottom-up (exogenous) attention. MEG Study of Temporal Parameters and Localization of Brain Responses During the Detection of Transient Changes in the Direction of Moving Stimuli Evgueni Simine1,2, William Gaetz3, Douglas Cheyne3, John K. Tsotsos1,2, Julio C. Martinez-Trujillo2 1 Department of Computer Science, York University, Toronto, Ontarion, Canada 2 Centre for Vision Research, York University, Toronto, Ontario, Canada 3 Neuromagnetic Imaging Laboratory, Hospital for Sick Children Research Institute, Toronto, Ontario, Canada
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