Seminar Series

Self-motion Perception and Action from Complex Optical Flow

Human observers perceive self-motion, control their posture, judge and steer their heading direction by utilizing optical-flow information. To investigate the relationship of various optical-flow based self-motion information processes, we measured vection, heading judgment, postural sway and steering control with presenting two superimposed visual motions. I will show the data suggesting that the processing of visual control of posture uses earlier visual information such as parallel inputs from individual motion components than the processing of heading perception and steering control, which use output of integrated opponent-motion processing.