Dynamic neural field model links neural and computational approaches to motion perception

Psychometric Function: Quantification

1.50 % threshold: S50: S for which P = 0.5

2.

2.Steepness: Steepness of the function at S50

3.

3.Curve fitting: P(S) = F(S, a)

•Free parameters a

•fit a => a*

•solve for S50 and
steepness using
F(S50, a*) = 0.5