運動情報の空間的結合における時間特性("視覚と画質, 一般"特集)

抄録

Temporal characteristics of visual motion processes were examined in terms of spatial combination of motion signals by using random-dot stimuli. Several random-dot fields were displayed successively. Perceptual motion directions of a central terget region were measured by varing duration and numbers of the field displayed. The results showed that the motion detection mechanisms having a surround inhibition property were also found to have a temporal selectivity. The model of this mechanism was discussed. The effects of temporal integration of the motion signals in the spatial combination of those were also shown and discussed.