Effects of targeted stimulation.

(a) The left-inferior frontal gyrus (L-IFG) is composed of four brain regions in the 234-region parcellation scheme used in this study: pars orbitalis (POB), pars triangularis (PTA) and pars opercularis (POC, two regions). Computational stimulation of a single brain region pushes its dynamics into a limit cycle (oscillations). (b) Spatial mapping of the variability in functional connectivity across subjects after computational stimulation to the L-IFG. Variability is measured as the standard deviation in regional functional connectivity across subjects divided by mean. (c) Individual functional connectivity matrices for three subjects resulting from computational stimulation of the L-IFG. Note the variation in the observed connectivity patterns across subjects.