Table 1.

Behavioral discrimination performance

Discrimination performance	Piano, n = 30	Reading, n = 28	Control, n = 16	Group difference, P
Word d′
Pre (SD)	1.4 (1.0)	1.3 (0.9)	1.8 (0.9)	0.374
Post (SD)	2.9 (0.8)	2.5 (1.2)	2.4 (1.1)	0.211
Delta (SD)	1.4 (1.1)	1.1 (0.9)	0.6 (1.1)	0.044*
Pitch d′
Pre (SD)	0.9 (0.9)	0.7 (1.1)	1.0 (0.7)	0.521
Post (SD)	1.9 (1.2)	1.7 (1.1)	1.5 (1.3)	0.523
Delta (SD)	1.1 (1.4)	1.0 (1.2)	0.5 (1.1)	0.372

Behavioral discrimination performance includes d′ results at pre/posttest and delta d′ (post minus pre) for the piano, reading, and control groups in behavioral word and pitch discrimination tests. A group difference in behavioral discrimination was observed for delta word d′. No such effect was observed for delta pitch d′.

^*P < 0.05. All P values were obtained using one-way ANOVA.