Working memory performance

Method

Score on a named validated instrument. The instrument is recorded on the edge and is part of what makes two edges comparable.

The method is part of the endpoint identity. Studies measuring the same quantity by a different method are held as separate endpoints.

Notes

Deliberately one node rather than one per instrument, with the instrument as edge metadata -- the same choice as the lift on 1RM. Revisit if the literature turns out to disagree across instruments in a way that makes pooling misleading.

Findings

1 finding from 1 compound, strongest first.

• lutein — increases

  BLikelyGrade B, Likely. Human evidence, limited replication or design limits.Finding

  “The LZ group showed significant increases in serum lutein levels, reduced eye strain and fatigue, and improved cognitive performance (focus, episodic memory and learning, visuospatial working memory) at days 90 and 180 compared to placebo.”

  Study

  RCT

  Duration

  6 months

  Dose

  gummies containing 10 mg lutein and 2 mg zeaxanthin daily for 180 days

  Population

  children aged 5-12 years

  Lutein and Zeaxanthin Supplementation Improves Dynamic Visual and Cognitive Performance in Children: A Randomized, Double-Blind, Parallel, Placebo-Controlled Study.2024PMID:38363462An author is affiliated with a producer