There were no group differences on demographic measures of income, education, and in self-reported levels of physical activity/the estimated levels of physical fitness. On average the yoga practitioners had 9.31 years of yoga experience.

Gray matter volume differences were observed in the left hippocampus, showing greater volume in experienced yoga practitioners compared to non-practitioners. The functional MRI results revealed less activation in the dorsolateral prefrontal cortex (executive control functions such as working memory) in yoga practitioners during the Sternberg working memory task, compared to controls during the encoding phase of the Sternberg task. Reaction time and accuracy on the task did not differ between the groups.