Temporal Information Can Influence Spatial Localization
until further notice
SourceJournal of Neurophysiology, 102, 1, (2009), pp. 490-495
Article / Letter to editor
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SW OZ DCC CO
Journal of Neurophysiology
SubjectAction, intention, and motor control
To localize objects relative to ourselves, we need to combine various sensory and motor signals. When these signals change abruptly, as information about eye orientation does during saccades, small differences in latency between the signals could introduce localization errors. We examine whether independent temporal information can influence such errors. We asked participants to follow a randomly jumping dot with their eyes and to point at flashes that occurred near the time they made saccades. Such flashes are mislocalized. We presented a tone at different times relative to the flash. We found that the flash was mislocalized as if it had occurred closer in time to the tone. This demonstrates that temporal information is taken into consideration when combining sensory information streams for localization.
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