Figure 2. (A) Relation between the stop-signal reaction time (SSRT) in the short-interval intracortical inhibition (SICI) session and the difference in SICI between go and stop conditions in young (black) and older adults (white). (B) Relation between the slope of the go response time (GoRT) and the slope of long-interval intracortical inhibition (LICI) in the early condition (300 ms after trial onset, untransformed data). The slope was calculated as a function of stop-signal probability.