Abstract

s of Poster Presentations / Clinical Neurophysiology 125, Supplement 1 (2014) S1–S339 S189 motor threshold, respectively. The ISI of TS was 5 s. Five types of pulse trains were delivered in a pseudo-random order. The ISIs between 3 ISs and between the last IS and TS were (a) 250 ms and 500ms, (b) 500 ms and 500 ms, (c) 1000 ms and 500 ms, (d) 500 ms and 1000 ms, and (e) TS only (control) (Fig. 1). All subjects provided written informed consent; the study was approved by the ethics committee at our institute. Figure 1. Schema of the experimental paradigm. Results: We observed a cortical response to TS in the contralateral S1. The dipole strengths for N20m, P35m, and P60m for condition (a) were significantly smaller than those for the control (e). The source strengths for N20m and P60m for condition (b) and (c) were significantly smaller than those for control (e) (Fig. 2). Figure 2. Mean source activities for N20m, P35m, P60m, and N150m elicited bymedian

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