[3] Namely, they assume that (a) the stimulus is Gaussian, (b) that the subunit nonlinearity is a second-order polynomial, and (c) the final nonlinearity is exponential.
」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」」＜第２章　物質の構成粒子＞（教p19-）