ANSWER

Cognitive performance includes working memory, processing speed, attention and general mental functioning.

Folates are important in the nervous system at all ages and there is growing evidence of their involvement in the ageing brain, especially in mood and cognitive functions. Low folate and raised homocysteine concentrations in the blood are associated with poor cognitive performance in the general population.

Enclosed please find the studies/journals that relates folate consumption and cognitive performance.

Biochemical-indicators-of-vitamin-B12-and-folate-insufficiency-and-cognitive-decline

Dietary-Folate-Vitamin-B12-Vitamin-B6-and-incident-Alzheimers-Disease

Effect-of-3-year-folic-acid-supplementation-on-cognitive-function-in-older-adults

Folate–vitamin-B-12-interaction-in-relation-to-cognitive-impairment-anemia-and-deficiency

Folic-acid-fortification-the-good-the-bad-and-the-puzzle-of-vitamin-B-12

Relation-of-Higher-Folate-Intake-to-Lower-Risk-of-Alzheimer-Disease-in-the-Elderly

Significant-correlations-of-plasma-homocysteine-and-serum-methylmalonic-acid