Recent studies focused on the associations of time reproduction with sustained attention, working memory, and behavioral inhibition. Kerns et al. (2001) reported a positive association between performance on a measure of attention (CPT) and a time reproduction task with a mixed result on the relationships between time reproduction and inhibitory control and working memory. McInerney and Kerns (2003) found the associations of time reproduction with working memory and behavioral inhibition, which lend support to the notion that time reproduction requires executive functions.