Complete Transfer of Percep Learning across Retinal Loc Enabled by Double Training

gaa vertical (V)-Gabor patch (Figure 1A) located 5 from fixation in the lower left or upper left quadrant of the visual field (de-noted as ‘‘ctrst-loc1,’ ’ contrast discrimination at location 1; Figure 1B). Significant learning was evident at loc1 after five to six 2 hr sessions of practice with one session per day in eight observers (Figures 1B and 1D; mean % improvement was identical except without prior location training (gray bar in Figure 2C, replotted from Figure 1D). The overall improve-ment in ctrst-loc2 after two stages of training was 32.1% (Figure 2C), comparable to the outcome of feature training (27.9%, Figure 2C) for ctrst-loc1 (p = 0.337). Again, assuming equal impact of location learning at both locations, feature learning at loc1 transferred completely to loc2 after location training