FIGURE 2.

(a) Depiction of MRS voxel positioning in the right sensorimotor cortex of a randomly selected participant and time point. The MRS voxel is overlaid on the participant and time point‐specific T1 structural image. Image created in the software MRIcro available at https://www.mccauslandcenter.sc.edu/crnl/mricro. (b) Spectra from all participants and time points included in the analyses (n = 72; 36 participants × two time points). GABA+ peak is visible at 3 ppm. Green and magenta represent the baseline and post‐learning/stimulation time points, respectively (thick black line = mean spectrum collapsed across time points and participants). GABA, gamma‐aminobutyric acid; MRS, magnetic resonance spectroscopy