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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: J Neurosci Methods. 2013 Jul 4;219(1):155–161. doi: 10.1016/j.jneumeth.2013.06.006

Figure 4. Cocaine-stimulated locomotor activity in High and Low USV Callers.

Figure 4

Cocaine-stimulated locomotor activity was similar in High and Low USV Caller groups. Data are daily mean (+SEM) locomotor activity levels (number of photobeam breakages) shown with a fourth degree polynomial line fit.