Fig. 5.
Effects of environmental manipulations on DNMTS forgetting delay functions and total choices with either a long (A, C) or short (B, D) delay interval distribution in rhesus monkeys (n=4). Ordinates: A–B Left) log d (A–B Right) proportion correct and (C–D) number of choices completed per delay. Abscissa: delay in seconds. Filled points in C–D represent delay intervals at which total choices were statistically different from baseline (p<0.05).