Evaluating the effectiveness of different perceptual training methods in a difficult visual discrimination task with ultrasound images

Cognitive Research: Principles and Implications

Table 1 Mean error (Experiment 1a) and mean difficulty level of the comparison (Experiment 1b) for the last 20 training trials of each training session

Session	Error (1a)		Difficulty level of comparison (1b)
Session	M	SD	M	SD
Session 1	1.36	0.39	5.00	0.58
Session 2	1.16	0.36	5.09	0.53
Session 3	1.11	0.36	5.07	0.74
Session 4	1.07	0.34	5.13	0.60

As Experiment 1a involved standard perceptual training, mean error was used as the measure. However, as Experiment 1b involved comparison training of an adaptive nature, the measure is the mean difficulty level of the comparison