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. Author manuscript; available in PMC: 2010 May 17.
Published in final edited form as: Neuroimage. 2008 Feb 15;41(2):424–436. doi: 10.1016/j.neuroimage.2008.01.065

Figure 3. First-Level and Second-Level Paths in the LMI TMS Model.

Figure 3

(a) Following stimulation with TMS, exploratory SEM revealed that the signal propagated from LMIhand to five nodes, designated by the five red paths to supplementary motor area (SMA), cingulate gyrus (Cing), left ventral lateral nucleus of the thalamus (LTHvl), right secondary somatosensory cortex (RSII), and right cerebellum. We termed these “first-level paths”. (b) Propagation of the TMS signal from those five nodes to all other nodes was determined next, generating the second-level paths in the model (green paths). Error terms are represented by the circular variables.