Figure 5
From: Relative posture between head and finger determines perceived tactile direction of motion
Cosine fit for nonsystematic bias. (a) The nonsystematic bias (yellow arrow) varies with the veridical direction of motion. (b) A cosine function with moment = 2 provides the best fit of the nonsystematic bias for the sample participant at a posture [θH, θF] = [60°, 90°]. The peak of the nonsystematic bias can be represented by the amplitude (A) and phase (θp).
