Gruenwald, AlexanderMingolla, Ennio2011-11-142011-11-141994-08https://hdl.handle.net/2144/2162The motion aftereffect (MAE) can be elicited by adapting observers to global motion before they view a display containing no global motion. Experiments y others have shown that if the left eye of an observer is adapted to motion going in one direction, no MAE is reported during binocular testing. The present study investigated whether no binocular adaption had occured because the monocular motion signals cancelled each other during testing. Observers were adapted to different, but not quite opposite, directions of motion in the two eyes. Either both eyes, the left eye, ot the right eye were tested. observers reported the direction of perceived motion during the test. When they saw the test stimulus with both eyes, observers reported seeing motion in the opposite direction of the vectorial sum of the adaption directions. in the monocular test conditions observers reported MAW directions about halfway between their binocluar report and the direction opposite the corresponding monocular adaptaion directions, indicating that both monocular and binocular sites had adapted. A decomposition of the observed MAEs based on two strictly monocular and one binoclar representation of motion adaptation can account for the data.en-USCopyright 1994 Boston University. Permission to copy without fee all or part of this material is granted provided that: 1. The copies are not made or distributed for direct commercial advantage; 2. the report title, author, document number, and release date appear, and notice is given that copying is by permission of BOSTON UNIVERSITY TRUSTEES. To copy otherwise, or to republish, requires a fee and / or special permission.Motion perceptionMotion aftereffectMotion directionMonocular motion aftereffectBinocular motion aftereffectVector sumMotion aftereffectTechnical ReportBoston University Trustees