***More active (live) cultures in the yogurt? Sweet.
I do know that probiotics are recommended by my son's physician to improve stomach function---which means that he will have lessened stomach pains and better nutrient absorption----which in turn leads to better concentration (in theory).
For my kiddo, we noticed an improvement in "functions" after 5 days.
Truthfully, he seems happier, but I wouldn't say that he's concentrating any better.
Just my experiences.
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'Our passion are the true phoenixes; when the old one is burnt out, a new one rises from its ashes.'---Johann Wolfgang von Goethe