Table 2.
TMS parameters in the motor and language mapping cohorts.
| TMS parameters | Upper extremity mapping | Lower extremity mapping | Language mapping |
|---|---|---|---|
| Number of sessions—attempted | 47 | 20 | 13 |
| Number of sessions—successful | 44 | 15 | 12 |
| Number of stimulations—single pulse | 167 ± 89 | 191 ± 97 | |
| Number of stimulations−5 Hz | n/a | 130 ± 52 | |
| TMS intensity—% MO | 98 ± 8 | 98.5 ± 7 | 34 ± 3 |
| TMS intensity—E field (V/m) | 243 ± 97 | 209 ± 73 | 91 ± 14 |
| Corticomotor latency—APB (ms) | 17.8 ± 3.1 | n/a | n/a |
| Corticomotor latency—Brachioradialis (ms) | 16.6 ± 4.6 | n/a | n/a |
| Corticomotor latency—TA (ms) | n/a | 26 ± 4.5 | n/a |
| Motor mapping: Normal localization | 30 | 15 | 12 |
| Motor mapping: Developmental variant | 6 | – | 0 |
| Motor mapping: Cortical reorganization | 8 | – | 0 |
| Language mapping task: Colors | n/a | 8 | |
| Language mapping task: Objects | n/a | 5 | |
| Number of speech arrests (Average ± SD) | n/a | 4 ± 5 | |
| Number of semantic errors (Average ± SD) | n/a | 2 ± 2 | |
| Number of performance errors (Average ± SD) | n/a | 10 ± 7 | |
| LH dominance | n/a | - | |
| RH dominance | n/a | 5 | |
| Bilateral dominance | n/a | 1 | |
| Dominance not determined | n/a | 6 | |
| Adverse effects - pain at site of stimulation | 1 | 6 | |
| Adverse effects - seizures | 10 | 0 | |
SO, stimulator output; E-field, Electric field; APB, Adductor pollicis brevis; TA, Tibialis anterior; SD, standard deviation; LH, left hemisphere; RH, right hemisphere; n/a, not applicable.