The issue focused on performance on particular tasks and average speed and efficiency of operations in general: http://www.ncbi.nlm.nih.gov/pubmed/3869288 and http://www.ncbi.nlm.nih.gov/pubmed/6677315

Neuroscience research has shown that brain regions involved in motor function are extremely variable in response to stress and competition. These findings should lead to further investigation into how brain regions involved in motor function function change over time