Imperial College London > Talks@ee.imperial > Complexity & Networks Group > A model of visual time perception

A model of visual time perception

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If you have a question about this talk, please contact Henrik J Jensen.

We have been investigating how we judge the duration of visual events. Adaptation paradigms have been very effective in teasing apart the neural basis of spatial vision. We recently showed (Johnston et al., Current Biology 16, 472-479 (2006)) that after adaptation to high rates of motion or flicker a sub-second interval of motion presented in the adapted area appears to be reduced in duration by around 20% when compared to an unadapted region of visual space. This indicates the involvement of local peripheral mechanisms in visual timing and precludes a single generic central clock. An number of experiments implicate adaptation of the magnocellular visual pathway as the key manipulation. We have proposed the existence of a “predict and compare” neural clock as a way of explaining these results.

This talk is part of the Complexity & Networks Group series.

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