"We ran tests on two groups of mice, one which had imbibed EGCG and a 
control group," said Bai. "First the mice were trained for three days 
to find a visible platform in their maze. Then they were trained for 
seven days to find a hidden platform."
The team found that the EGCG treated mice required less time to find 
the hidden platform. Overall the results revealed that EGCG enhances 
learning and memory by improving object recognition and spatial memory.
"We have shown that the organic chemical EGCG acts directly to 
increase the production of neural progenitor cells, both in glass 
tests and in mice," concluded Bai. "This helps us to understand the 
potential for EGCG, and green tea which contains it, to help combat 
degenerative diseases and memory loss."
http://wisciblog.com/2012/09/05/brainy-beverage-study-reveals-how-
green-tea-boosts-brain-cell-production-to-aid-memory/
Nootrópicos (smartdrugs, drogas inteligentes, potenciadores cognitivos) son sustancias artificiales (medicamentos como piracetam, hydergina, citicolina, fosfatidilserina, vinpocetina, etc.) o naturales (suplementos nutricionales, vitaminas, aminoácidos, hormonas, hierbas, etc. como vitaminas B, piroglutamato, Gingko Biloba, fenilalanina, DHEA, pregnenolona, etc.) que se utilizan para mejorar la capacidad cognitiva (memoria, atención, etc.) en personas con trastornos o normales.