B. Parametric summaries of representative sigmoidal activation and inhibition timecourses and impulse (double sigmoid) modeling of transitory inhibition. Sigmoids are summarized by half-max time (trise) and the asymptote (vinter), while impulses include a second half-max (tfall) time and final asymptote (vfinal). The strongest supported model for each timecourse is shown as a filled in line, while the alternative model is shown with a dashed line. 