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(A, B) Comparison of frequency and duration between reinforced (RF) and non-reinforced (Non-RF) sequences. (C, D) Variance and (E, F) variability, measured as the Fano factor, for reinforced and non-reinforced sequences. Black lines correspond to mean values for non-reinforced sequences. Red lines correspond to mean values for reinforced sequences. Shaded areas correspond to mean ± SEM.
