Fig. 2

The effect of touch on the somato-cardiac sympathetic reflex in aged rats. Representative records of A- and C-reflexes (averaged 50 times) before and during touch (6 g) are shown (A). At the point of the triangle (filled triangle) located under the time axis, a single electrical shock was applied to the tibial nerve. The graphs (B) show the effect of touch (6–12 g) on A- (a) and C- (b) reflex discharges (8 aged rats). See Fig. 1 for further details