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. Author manuscript; available in PMC: 2011 Jan 30.
Published in final edited form as: Psychiatry Res. 2010 Jan 30;181(1):15–23. doi: 10.1016/j.pscychresns.2009.07.009

Figure 2. Task Performance.

Figure 2

Mean (with standard error) reaction time (a) and number of errors (b) on the finger-sequencing task for cocaine users (solid) and matched control participants (lined). * p<0.05, ** p<0.01, ***p<0.00001