@article{oai:nagoya.repo.nii.ac.jp:02006143, author = {石垣, 尚男 and ISHIGAKI, Hisao and 山田, 久恒 and YAMADA, Hisatsune}, issue = {1}, journal = {総合保健体育科学, Nagoya Journal of Health, Physical Fitness & Sports}, month = {Mar}, note = {The purpose of this study is to investigate peripheral reaction time as a function of the cooperation between central and peripheral vision especially when the load was placed on central vision. The principal experimental conditions were as follows: 1) Phototopic vision - 400 lux 2) Horizontal meridian of nasal side on the retina of the right eye - 4°, 6°, 8°. 10°, 20°, 40°,60°,80°from the fovea 3) Peripheral stimulus - light emitting diode (yellow); size 1°; luminescence 16 nit, 8 nit, 4 nit; stimulus time 100 msec. 4) Visual fixation target - landolt ring (1.7°) made of LED (yellow, 16 nit) For central vision loading there were two conditions, that is the landolt ring be changed at 1 sec and .5 sec intervals. The subject identified the direction of the landolt ring verbally. The main results of the study are as follows: 1) The reaction time of the fovea was shorter than that of the peripheral retinal locus and the reaction time was longer in the peripheral retina as the distance from the fovea was increased. All stimulus conditions produced almost the same results. 2) The reaction time when the stimulus began to move was inversely proportional as the velocity of the movement increased. The result was the same in all peripheral loci. 3) In the peripheral field of any retinal locus the reaction time was less when the subject foresaw the stimulus than when it was unforeseen. 4) When the subject did not foresee the stimulus, the closer to the visual fixation target it was, the longer the reaction time was. But when the subject foresaw the stimulus, the result was the opposite. This result was considered to be due to the influence of the inhibition effect of a visual fixation target. 5) When deciphering the landolt ring was established, the reaction time was extended by a 70 msec average at the 1.0 sec interval and an 83 msec average at the 0.5 msec interval. This extension of the reaction time was caused by the parallel increase in relationship between the two intervals and the static condition. 6) The parallel increase was independent of peripheral locus, unforeseen conditions, or other differences in stimulus condition. 7) It was hypothesized that this extension time of 70-83 msec was the consumption time of the central nervous system when the attention was switched from deciphering the landolt ring to the stimulus.}, pages = {13--34}, title = {中心固視条件が周辺視知覚に及ぼす影響に関する研究 : 1. 周辺視反応時間}, volume = {5}, year = {1982} }