Studies related to Working Memory and Ashwagandha

Efficacy And Safety Of Ashwagandha (Withania Somnifera (L.) Dunal) Root Extract In Improving Memory And Cognitive Functions

Effect Increase
Values Wechsler Memory Scale (WMS-III INDIA) working memory subset: Letter numbering sequence . Placebo: before 12.85 (2.15), after 13.08. Ashwagandha: before 11.88 (2.86), after 12.88 (1.74). Insignificant. Spatial span: Placebo: before 11.65 (3.54), after 11.69 (1.59). Ashwagandha: before 12.12 (3.31), after 1.71 (1.69). Significant.
Trial Design Randomized trial
Trial Length 1-6 months
Number of Subjects 50
Sex Both Genders
Age Range 30-44, 45-64, 65+
Body Types Obese, Overweight, Average
Notes for this study:
In a randomized, double-blind, placebo-controlled trial, 50 subjects with memory impairment, early dementia, or a low score on a general cognitive function test took either placebo or 600 mg of an ashwagandha root extract for 8 weeks.

The primary outcome was considered to be performance on various cognitive tests, including memory, visuospatial processing, executive function, and attention. At the end of 8 weeks, participants taking ashwagandha saw statistically significant improvements compared with the placebo group in most memory tests, executive function, and attention, though not visuospatial processing.