Regarding the study of relationships between genetic polymorphisms of the BDNF gene and cognitive alterations in patients with schizophrenia, it should be noted that this has been done not only with the Val66Met polymorphism (also known as rs6265 or G196A), but also with other polymorphisms (with positive results for rs12273539 and rs10835210). The gene discussed is BDNF; the disease is schizophrenia.