On the relative contributions of motion energy and transparency to the perception of moving plaids

Vision Research
D T Lindsey, J T Todd

Abstract

Stoner, Albright and Ramachandran [(1990) Nature, 344, 153-155] found that moving rectangular-wave plaid patterns that admitted a transparency interpretation appeared to segment that "slide" past one another as the plaids were translated, while the components of plaids that did not admit a transparency interpretation appeared to unify and move rigidly in the direction of translation of the plaid. In experiment I, we show that the magnitude of the effect reported by Stoner et al. is due largely to their repeated-trials experimental protocol, in which plaids moving in a particular direction, upward or downward, are repeatedly presented. This protocol leads to a direction-of-motion-specific adaptation that diminishes the effectiveness of processes that are presumably involved in the unification of the various sensory signals evoked by a moving plaid. In the second experiment, we measured frequencies of nonrigidity for a larger class of moving plaid-like patterns that moved either upwards or downwards on a pseudorandom schedule identical to that employed by Stoner et al. Some of the patterns admitted a transparency interpretation, while others did not. The overall pattern of results could not be accounted for within the context of ...Continue Reading

References

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Citations

Jul 9, 2013·Experimental Brain Research·Andrew Isaac MesoJohannes M Zanker
Apr 3, 2001·Perception & Psychophysics·D T Lindsey
Jan 10, 2003·Perception & Psychophysics·Erdogan CesmeliDeLiang Wang
Jun 18, 1998·Perception & Psychophysics·D T Lindsey, J T Todd
Feb 22, 2003·Vision Research·Jean-Michel Hupé, Nava Rubin
Dec 19, 2003·Vision Research·Jean-Michel Hupé, Nava Rubin
Jun 23, 2009·Vision Research·Andrew Isaac Meso, Johannes M Zanker
Apr 10, 1999·Perception·K R DobkinsT D Albright
Oct 2, 2001·Perception·J McDermottE H Adelson
Nov 1, 2006·Toxicologic Pathology·Robert D CardiffJerrold M Ward

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