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. Author manuscript; available in PMC: 2008 Mar 11.
Published in final edited form as: J Acoust Soc Am. 2007 Oct;122(4):1884–1887. doi: 10.1121/1.2770548

FIG. 1.

FIG. 1

Sound spectrograms of the 6 speech sounds used as stimuli. The 2 sounds that served as oddballs are described on the left. The 4 that served as standard stimuli are described in the middle. The combinations that defined the 4 discrimination tasks are specified on the right.