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. Author manuscript; available in PMC: 2009 Aug 4.
Published in final edited form as: J Phon. 2008 Jan 1;36(1):28–54. doi: 10.1016/j.wocn.2007.02.001

Appendix.

Average d′ values (95% confidence intervals) obtained in the single-dimension tasks in each experiment. The first term in each column heading identifies the dimension along which the two stimuli differ, the second the value for the other dimension.

Experiment Dimension of Classification, Value of Other Dimension
f0, Short CD f0, Long CD CD, Low f0 CD, High f0
1a: High F1 0.764 (0.727) 0.482 (0.402) 3.118 (0.784) 1.639 (0.779)
1a: Low F1 0.750 (0.440) 1.129 (0.789) 2.144 (0.749) 1.664 (0.669)
F1, Short CD F1, Long CD CD, Low F1 CD, High F1
1b: High f0 0.719 (0.750) 0.951 (0.704) 1.884 (0.579) 0.135 (0.197)
1b: Low f0 2.163 (0.935) 0.618 (0.322) 1.975 (0.776) 3.192 (0.573)
F1, Short VC F1, Long VC VC, Low F1 VC, High F1
2a: Speech 0.993 (0.593) 1.882 (0.750) 0.568 (0.417) 0.411 (0.302)
2a: Non-speech 3.602 (1.104) 3.142 (0.759) 0.488 (0.552) 0.836 (0.583)
f0, Short VC f0, Long VC VC, low f0 VC, high f0
2b: Speech 1.259 (0.553) 0.807 (0.473) 0.545 (0.505) 0.635 (0.317)
2b: Non-speech 0.925 (0.414) 1.373 (0.591) 1.668 (0.675) 0.866 (0.395)
F1, low f0 F1, high f0 f0, low F1 f0, high F1
3a: Speech 1.026 (0.526) 0.769 (0.508) 0.327 (0.298) 0.231 (0.396)
3a: Non-speech 1.661 (0.676) 1.741 (0.682) 0.845 (0.497) 1.119 (0.627)
3b 1.369 (0.581) 1.075 (0.578) 0.561 (0.416) 0.557 (0.476)
3c 0.603 (0.349) 1.253 (0.559) 1.09 (0.623) 0.745 (0.481)