Impairment of auditory spatial localization in congenitally blind human subjects.

Although the minimal audible angle thresholds do not differ significantly between groups ( t -test, P = 0.21), the difference in bisection thresholds is highly significant (Wilcoxon Signed Ranks Test, P < 0.01; bootstrap sign-test: P < 10 −5 ); not one congenitally blind subject had a localization threshold falling within the 95% confidence range of the thresholds of the sighted subjects.

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