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Mini-Review: practice organization beyond memory processes

Background: The benefits of variable practice in motor learning have been traditionally explained by the increased demand for memory processes induced by trial-to-trial changes. Recently, a new perspective associating increased demand for perception with variable practice has emerged. 
Aim: This revision aims to present and discuss the findings in this exciting topic newly opened. 
Results / Interpretation: In the second half of 2010’s, a number of studies have pointed out differences in perceptual processing when compared variable and repetitive practices. Different levels of (a) hemodynamic activation, (b) electroencephalographic activity, (c) neurochemical activity, and (d) oculomotor behavior have provided evidence that perceptual processes are affected differently by variable and repetitive practices.