Increased Signal Complexity Improves the Breadth of Generalization in Auditory Perceptual Learning
Figure 5
Learning curves showing mean temporal-interval discrimination thresholds (for 79% correct performance) on the trained standard interval (90 ms, 1 kHz, dB). The filled line represents the full data set for this experiment with the dotted line showing the curve for the “3 months since experiment 1 posttest” group and the dashed line for the “6 months from experiment 1 posttest” group. Filled symbols represent test phases (pre-test, posttest, follow-up) with empty symbols being training days. Whilst not displayed to scale, the first 12 sessions all took place within 3 weeks of the pretest session with the “follow- up” session undertaken either 3 or 6 months after the posttest session. Error bars indicate ±1 SEM.
