Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Physiology
Color Updating On The Apparent Motion Path, Edmund Chong, Sang Wook Hong, Won Mok Shim
Color Updating On The Apparent Motion Path, Edmund Chong, Sang Wook Hong, Won Mok Shim
Dartmouth Scholarship
When a static stimulus appears successively at two distant locations, we perceive illusory motion of the stimulus across them–long-range apparent motion (AM). Previous studies have shown that when the apparent motion stimuli differ in shape, interpolation between the two shapes is perceived across the AM path. In contrast, the perceived color during AM has been shown to abruptly change from the color of the first stimulus into that of the second, suggesting interpolation does not occur for color during AM. Here, we report the first evidence to our knowledge, that an interpolated color, distinct from the colors of either apparent …
Backward Position Shift In Apparent Motion, Hsin-Hung Li, Won Mok Shim, Patrick Cavanagh
Backward Position Shift In Apparent Motion, Hsin-Hung Li, Won Mok Shim, Patrick Cavanagh
Dartmouth Scholarship
We investigated the perceived position of visual targets in apparent motion. A disc moved horizontally through three positions from -10° to +10° in the far periphery (20° above fixation), generating a compelling impression of apparent motion. In the first experiment, observers compared the position of the middle of the three discs to a subsequently presented reference. Unexpectedly, observers judged its position to be shifted backward, in the direction opposite that of the motion. We then tested the middle disc in sequences of 3, 5, and 7 discs, each covering the same spatial and temporal extents (similar speeds). The backwards shift …