Fig. 4.

Computer simulations: reduced CI effect in a model with poor visuospatial working memory. Performance (black line), fast process (dotted line), and slow process (gray line) are shown during blocked (A) and random schedule training (C). Immediate and long-term retention are shown following blocked (B) and random schedule training (D). In blocked schedules, there was little forgetting in the delayed retention test (B; compare with Fig. 3B) because of relatively higher buildup of slow process and lower buildup of fast process during training (A; compare with Fig. 3A). In random schedules, there was little difference during training (C) and testing (D) compared with the normal model (compare with Fig. 3, C and D).