Relationship between age of onset and years of practice with perceptual and cognitive measures (musicians only).

Correlations between age of onset and the cognitive and perceptual measures for the musician group only. No significant relationships were found between age of onset and these cognitive and perceptual measures. In this study, age of onset was an inclusionary measure (musicians were required to have started musical training before the age of 8 years) resulting in a restricted range of data points (6 years). Therefore, the lack of correlation between age of onset and the perceptual and cognitive skills likely speaks to the limited range of age of onset rather than being a true indicator of a lack of relationship between these variables.