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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Behav Brain Res. 2015 Mar 28;287:256–264. doi: 10.1016/j.bbr.2015.03.044

Figure 1.

Figure 1

Speech training time course. (a) Rats trained on the consonant discrimination task for 20 days. Error bars indicate s.e.m. across rats (n = 5 rats). The dashed line at 50% correct indicates chance performance. (b) Following the consonant discrimination task, rats trained on the vowel discrimination task for 15 days. (c) Following the vowel discrimination task, rats trained on the speech-in-noise discrimination task for 15 days in varying levels of background speech-shaped noise (range of 0 – 72 dB background noise). All speech sounds were presented at 60 dB.