Pavan, Andrea and Skujevskis, Maris (2013) The role of stationary and dynamic test patterns in rapid forms of motion after-effect. JOURNAL OF VISION, 13 (1): 10. ISSN 1534-7362,
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Subsecond adaptation to directional motion can induce a rapid form of motion after-effect (rMAE). Unlike the characteristics of the classic motion after-effect (MAE), produced by adaptation of several seconds or minutes, the properties of the rMAE have been less well explored. In a series of experiments, we assessed the role of stationary and dynamic test patterns (counterphase flickering gratings) in generating rMAE. In particular, we varied the duration, temporal frequency, and spatial phase of the adapting stimuli. Our results show that rMAE is only generated by dynamic test patterns, exhibiting a strong dependence on the adaptation duration and temporal frequency but not on the spatial phase. Similarly to the classic dynamic MAE, the temporal frequency tuning of the dynamic rMAE suggests the involvement of both low-pass and band-pass visual channels. Unexpectedly, our results do not show evidence for static rMAE. We speculate that a stationary test pattern presented immediately (or very soon) after the adapting pattern could interfere with the effects of adaptation by disrupting weak motion signals that arise from adapted and unadapted motion detectors (Ledgeway & Smith, 1994a, 1994b).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MACAQUE AREA MT; OPTIMAL DISPLACEMENT; INTEROCULAR TRANSFER; VISUAL-ADAPTATION; 2ND-ORDER MOTION; DETECTING MECHANISMS; TRANSPARENT MOTION; TEMPORAL CHANNELS; CONTRAST; DISCRIMINATION; brief (subsecond) adaptation; stationary test pattern; dynamic test pattern; motion after-effect (MAE); rapid motion after-effect (rMAE); phase shift; temporal frequency selectivity |
| Subjects: | 100 Philosophy & psychology > 150 Psychology |
| Divisions: | Human Sciences > Institut für Psychologie Human Sciences > Institut für Psychologie > Lehrstuhl für Psychologie I (Allgemeine Psychologie I und Methodenlehre) - Prof. Dr. Mark W. Greenlee |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Apr 2020 07:59 |
| Last Modified: | 29 Apr 2020 07:59 |
| URI: | https://pred.uni-regensburg.de/id/eprint/17481 |
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