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Slope reversals in the music and speech of tone and non-tone language speaking cultures.

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posted on 27.05.2011 by Shui' er Han, Janani Sundararajan, Daniel Liu Bowling, Jessica Lake, Dale Purves

(A) Box plot showing the distribution of the number of melodic slope reversals per melody in the tone (red) and non-tone (blue) language music databases (n1 = n2 = 90). Horizontal yellow lines indicate medians; colored boxes specify inter-quartile ranges and dashed lines the ranges without outliers. (B) Box plot of the number of prosodic slope reversals per speaker in the tone and non-tone language speech databases (n1 = n2 = 40). The cross indicates an outlier (defined as greater/lesser than 1.5x the inter-quartile range). (*  =  P<0.001; all comparisons were made using a Mann Whitney U-test, α = 0.05, two-tailed).

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