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. Author manuscript; available in PMC: 2009 Dec 10.
Published in final edited form as: Curr Biol. 2008 Apr 22;18(8):R331–R332. doi: 10.1016/j.cub.2008.02.045

Figure 1.

Figure 1

Perception and production accuracy in tone-deaf and control listeners. Each trial was scored as correct if the direction of verbal report (in the perception task) or the direction of produced fundamental frequencies (in the production task) was the same as target stimuli. Perception was significantly worse in tone-deaf individuals than controls, t(1,10) = 5.6, p = 0.0002. However, direction of pitch production was above chance in tone-deaf subjects, with performance being statistically indistinguishable from controls, t(1,10) = 1.05, p = 0.3. A two-way ANOVA with factors of group (tone-deaf vs. control) and task (perception vs. production) showed a significant interaction (F(1,20) = 13.2, p < 0.01), confirming differential performance in perception but not production in tone-deaf versus control listeners.