Table 2: Absolute latency, interpeak latency, and wave amplitude in control subjects.

Stimulation side/recording sideP value
L/L ( )R/R ( )L/R ( )R/L ( )
Mean ± SDMean ± SDMean ± SDMean ± SD

Latency (ms)
 L-I 0.407
 L-III 0.868
 L-V 0.010*
Interpeak latency (ms)
 IPL I–V 0.384
 IPL I–III 0.595
 IPL III–V 0.004*
Amplitude (μV)
 A-III <0.001*
 A-V 0.003*

A: amplitude; IPL: interpeak latency; L: absolute latency; L: left side; R: right side; —: wave not detectable.
* P < 0.05 between the four groups.
Significant difference compared to L/L.
Significant difference compared to R/R.