Table 1. EMG amplitude, CSP onset latency, CSP end latency, CSP duration, index of suppression, and EMG rebound amplitude obtained in thenar muscles following noxious digit II stimulation
CSP-only | CSP-PP | P | |
---|---|---|---|
Mean and standard error of baseline EMG amplitude (from −200 ms until −100 ms preceding the noxious stimulus), CSP onset latency, CSP end latency, CSP duration, index of suppression, and EMG rebound amplitude (during 100 ms following the end of the CSP) obtained in thenar muscles following noxious digit II stimulation (25 times sensory threshold intensity). Note the significant decrease in EMG rebound amplitude in traces containing a prepulse (CSP-PP) | |||
Baseline EMG amplitude (mV s) | 22.1 (4.1) | 21.7 (3.7) | 0.33 |
CSP onset latency (ms) | 44.9 (3.0) | 45.0 (1.4) | 0.91 |
CSP end latency (ms) | 124.1 (3.9) | 124.1 (3.5) | 0.73 |
CSP duration (ms) | 79.2 (5.7) | 79.1 (4.0) | 0.91 |
Index of suppression (%) | 40.4 (3.0) | 38.9 (3.0) | 0.44 |
EMG rebound amplitude (mV s) | 31.5 (4.3) | 27.6 (3.3) | 0.02 |