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Sven P. Heinrich, Anette E. H. Renkl, Michael Bach; Motion adaptation: The pattern matters. Journal of Vision 2004;4(8):567. doi: 10.1167/4.8.567.
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© ARVO (1962-2015); The Authors (2016-present)
Visual motion processing is strongly susceptible to adaptation. Is this effect specific to the pattern type, or does it transfer between pattern types? Based on the N2 component of motion-onset visual evoked potentials, we assessed three commonly used patterns, namely random dots, barcode-like gratings, and sinusoidal gratings. Isodirectional and antidirectional adaptation were used to differentiate between the actual motion adaptation and associated flicker adaptation. Motion adaptation was almost 2.5-fold stronger (P < 0.01) if the same rather than different pattern types were used for adaptation and test. This implies that separate neural populations are involved, suggesting the presence of pattern-tuned motion mechanisms.
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