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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Behav Processes. 2015 May 12;116:87–99. doi: 10.1016/j.beproc.2015.05.003

Figure 5. Ultrasounds during reward comparison.

Figure 5

USV emission during positive and negative contrast sessions. A. Negative contrast session: USV emission was significantly lower during the mixed and final single outcome block when compared with the initial single outcome block (p < .05 ☆) B. Positive Contrast session: there were no significant differences.