Method of enhancing cognition in individuals with at least normal cognition

A method of enhancing cognition in a human subject exhibiting substantially normal cognition, including the steps of:

• a) administering a first test known as the Folstein Mini-Mental State examination to said subject to determine their level of cognition;
• b) confirming that said subject exhibits normal cognition as evidenced by their achievement of a first score of 20 or greater from taking said first test;
• c) assessing neurocognitive functions of said subject by evaluating said subject employing a second neuropsychological test to obtain a second baseline score;
• d) administering to said subject a substance comprising an aqueous extract of an Uncaria species comprising Uncaria tomentosa in a pharmaceutically effective amount and for a period of time sufficient to enhance cognition of said subject;
• e) after said period of time has elapsed, re-testing said subject using said second neuropsychological test to determine whether their degree of cognition has become enhanced as compared to their degree of cognition before commencement of administration of said substance;
• f) said method resulting in enhanced cognition being exhibited by said subject as determined by an increased score above said second baseline score.