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Intensive mental training reduces intra-individual variability of behavioral performance. Average mean reaction time (A), sensitivity index d′ (B), and SD of reaction time (C) in response to target (attended deviant) tones, separately for each session (time 1, time 2) and group (practitioners, novices) (± SE). Note that the practitioners showed significantly lower variability of reaction times (SDs) than the novices at time 2 versus time 1.
