Widespread presence of direction-reversing neurons in the mouse visual system
Billeh, Y. N.; Iyer, R.; Wahle, I. A.; Caldejon, S.; Durand, S.; Groblewski, P. A.; Larkin, J. D.; Lecoq, J.; Williford, A.; Mihalas, S.; Arkhipov, A.; de Vries, S. E. J.
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Direction selectivity - the preference of motion in one direction over the opposite - is a fundamental property of visual neurons across species. We find that a substantial proportion of direction selective neurons in the mouse visual system reverse their preferred direction of motion in response to drifting gratings at different spatiotemporal parameters. A spatiotemporally asymmetric filter model recapitulates our experimental observations.
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