Mean Log RTs (ms) in Experiments 1c and 2a: 0-s delay. Top Panel: Mean Log RTs (ms) for the Predictive and Random conditions as a function of days of training in Experiment 1c: 0-s delay. Bottom Panel: Mean Log RTs (ms) for the Predictive and Random conditions as a function of days of training in Experiment 2a: 0-s delay. Error bars represent the standard error of the mean. As a guide to calibrating Log RTs to RTs (ms): Log RT of 6 = 403 ms, Log RT of 6.5 = 665 ms, Log RT of 7 = 1,097 ms, and Log RT of 7.5 = 1,808 ms.