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. 2016 Aug 16;140(2):1072–1088. doi: 10.1121/1.4960544

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© 2016 Acoustical Society of America.

0001-4966/2016/140(2)/1072/17/$30.00

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FIG. 8. — (Color online) Group-level CImgs. Colormaps reflect the normalized (z-score) magnitude of the group CImg, which is obtained by summing CImgs across participants. In all CImgs, temporal modulation rate (Hz) is plotted along the x axis and spectral modulation rate (cyc/kHz) is plotted along the y-axis. (A) Unthresholded group-level CImg for uncompressed speech. (B) Thresholded group-level CImg for uncompressed speech. Pixels not exceeding threshold have not been assigned a color value (i.e., appear white). The threshold criterion was established on the basis of a null distribution formed by estimating 1000 group-level CImgs with participants' responses shuffled. (C) Unthresholded group-level CImg for time-compressed speech. (D) Thresholded group-level CImg for time-compressed speech.