Fig. 5.

Trigeminal reflex blinks of the subject with right facial nerve palsy were hyperexcitable relative to those of age-matched control subjects. For the unaffected eyelid, the amplitude of the blink evoked by the second of two identical SO stimuli (Test) divided by the amplitude of the blink evoked by the first SO stimulus (Condition) is plotted as a function of the interstimulus interval between the SO stimuli for age-matched control subjects (Control, ♦; ±SEM) and the facial palsy subject tested 30 (●, ○) and 121 (▴, ▵) d after the onset of right facial nerve palsy. ●, ▴, Data from stimulation of the SO ipsilateral to the facial palsy (RSO). ○, ▵, Data from stimulation of the SO contralateral to the facial palsy (LSO). Each point is the mean of at least four trials. Control subject data are from those of Peshori et al. (2001).