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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: J Psychiatr Res. 2011 Oct 27;46(2):248–255. doi: 10.1016/j.jpsychires.2011.10.006

Figure 2.

Figure 2

Mean long-interval paired-pulse transcranial magnetic stimulation (TMS) measures from abstinent cocaine-dependent and healthy individuals (expressed as % ratios of the mean conditioned motor evoked potential (MEP) to the mean unconditioned MEP). Long-interval intracortical facilitation (LICF) and inhibition (LICI) are assessed at interstimulus intervals (ISIs) of 30 and 50 / 100 ms, respectively. Ratios larger or smaller than 100% represent facilitation and inhibition, respectively. Error bars represent SEM (standard error of the mean). Inter-stimulus interval (ISI) values on the x-axis are expressed in milliseconds.