BDNF and memory impairment: In fact, ginseng berry experiments with application to mental health seem to be limited to the examination of serotonin regulation in comorbid myocardial infarction models [57,58] and one additional study involving scopolamine-induced memory impairment, where the berry extract was shown to have antioxidant effects and to preserve acetylcholine and brain-derived neurotrophic factor (BDNF) mRNA levels [59].