Have you considered running a similar study for long-chain omega-3 supplementation @Paul_Christiano may be interested too. Witte et al. (2013) ran a randomised, double-bind, placebo-controlled trial involving 65 healthy people which found it āenhanced executive functions by 26%, whereas performance remained constant after placebo (paired t-test, t(31) = 3, P = 0.005; Fig. 3A)ā. Based on Fig. 3A, they are saying the mean of the following composite score for executive function among participants in the treatment group increased by 0.26. ā[z phonemic fluency + z semantic fluencyāz TMT [trail making test] (part Bāpart A)/āpartAāz STROOP [Stroop Color-Word test] (part 3 - (part 1 + part 2))/ā2]/ā4ā, where z refers to the z-score of a person on a test. āRegarding the composite score for memory, both groups showed a similar retest effect at follow-up, with no significant effect of group (ANOVARM, group X time: P = 0.6; time: F1,63 = 19.8, P < 0.001)ā. āFor sensorimotor speed, a global retest effect was noticed that did not differ between groups (composite score, ANOVARM, time: F1,63 = 14, P < 0.001)ā.
Hi @Fabienne,
Have you considered running a similar study for long-chain omega-3 supplementation @Paul_Christiano may be interested too. Witte et al. (2013) ran a randomised, double-bind, placebo-controlled trial involving 65 healthy people which found it āenhanced executive functions by 26%, whereas performance remained constant after placebo (paired t-test, t(31) = 3, P = 0.005; Fig. 3A)ā. Based on Fig. 3A, they are saying the mean of the following composite score for executive function among participants in the treatment group increased by 0.26. ā[z phonemic fluency + z semantic fluencyāz TMT [trail making test] (part Bāpart A)/āpartAāz STROOP [Stroop Color-Word test] (part 3 - (part 1 + part 2))/ā2]/ā4ā, where z refers to the z-score of a person on a test. āRegarding the composite score for memory, both groups showed a similar retest effect at follow-up, with no significant effect of group (ANOVARM, group X time: P = 0.6; time: F1,63 = 19.8, P < 0.001)ā. āFor sensorimotor speed, a global retest effect was noticed that did not differ between groups (composite score, ANOVARM, time: F1,63 = 14, P < 0.001)ā.