Table 2.
Stimulus conditions and outcome parameters used in Expt 3
| Condition | Strength of CS | ISI (ms) | Strength of S* | Symbol for PAS intervention | Outcome parameters |
|---|---|---|---|---|---|
| PAS101.3RMT | — | — | 1.3 × RMT | ![]() |
MEP(APB), MEP(ADM); CR3(APB), CR3(ADM) |
| PAS100.7RMT | — | — | 0.7 × RMT | ![]() |
MEP(APB), MEP(ADM); CR3(APB), CR3(ADM) |
| CS3-PAS101.3RMT | 0.7 × RMT | 3 | 1.3 × RMT | ![]() |
MEP(APB), MEP(ADM); CR3(APB), CR3(ADM) |
RMT, resting motor threshold; ISI, interstimulus interval between the conditioning magnetic stimulus (CS) and the principal magnetic stimulus (S*); MEP(APB) and MEP(ADM), motor-evoked potential of the abductor pollicis brevis (APB) and abductor digiti minimi muscle (ADM), respectively; CR3(APB) and CR3(ADM), amplitude of conditioning–test pulse response normalized to the amplitude of the unconditioned test response, of the APB and ADM, respectively. Black triangle, principal TMS pulse; open triangle, weak conditioning TMS pulse; grey triangle, time of arrival of afferent signals at the primary motor cortex.


