Fig 4 - Learning New Sensorimotor Contingencies: Effects of Long-Term Use of Sensory Augmentation on the Brain and Conscious Perception

Layout of the homing task. (A) Design of the polygons used in the homing task. (B) Example polygon depicting the homing error (error between start point and actual end point of participants walk), H = Homing point, point from which participants had to home to the starting point on their own, S = Start point, red dot = actual end point of participants' path, grey dashed line H-S = ideal homing segment. (C) Pre-to post-training comparison of homing errors of belt wearing participants in the belt-on condition. For visualization polygons were superimposed and mirrored and/or rotated in a way that all of them end up below the dashed line which represents the optimal path from homing point (H) to starting point (S). An inward error could be observed in the position of the ellipse underneath the homing trajectory could be observed. (D) Effect of belt use (error in belt-off minus belt-on conditions, positive numbers indicate a reduction of homing error) onto homing error comparing pre-to post-measurement for belt wearing and control group. Error bars indicate SEM.