出版社：The Institute of Image Information and Television Engineers
摘要：The correspondence between motion appearances and accommodative responses to multiple-drifting sine-waves has been examined to clarify whether the accommodation mechanism cooperates with the motion detection mechanism or not. The stimuli consisted of two or three sine-waves moving in opposite directions. Accommodative responses were measured using an infrared optometer while observers were paying attention to each component sine-wave's motion. The following results were obtained : (1) the motion appearance and the accommodative state are changed depending on which component sine-wave is paid attention to; (2) at each accommodative state, the attention-getting sine-wave's motion is perceived stably and correctly; (3) the accommodative state shifts to one direction (far or near) as the attention-getting sine-wave's spatial frequency decreases; (4) the above results are independent of viewing distance; (5) the amount of the retinal image's blur derived from our perceptual judgment does not always coincide with that derived from the accommodation lag; (6) the resting state of accommodation produces no effect on the accommodative responses. These results suggest that the accommodation mechanism is a cooperative system which interacts with the motion detection mechanism.
