Link to journal article: http://www.europeanneuropsychopharmacology.com/article/S0924-977X(15)00249-7/abstract?cc=y= http://www.europeanneuropsychopharmacology.

Link to journal article: http://www.europeanneuropsychopharmacology.com/article/S0924-977X(15)00249-7/abstract?cc=y= http://www.europeanneuropsychopharmacology.com/article/S0924... "What’s lacking is long-term data—important because study of other promising enhancers has shown that the effect may not last over time." This article fails to link to answer any of my key questions: What definition of cognition? How does it compare against caffeine in these same tests?