Here's a well-cited overview of the role n-3s (EPA &#38; DHA) in brain development, among other things: <a href="http://www.lef.org/LEFCMS/aspx/PrintVersionMagic.aspx?CmsID=115327" rel="nofollow">http://www.lef.org/LEFCMS/aspx/PrintVersionMagic.aspx?CmsID=...</a><p><i>Overwhelming evidence for the benefits of DHA comes from a recent review of some 50 studies, which concluded that higher DHA in babies’ diets translates into better brain function, especially for cognitive and visual function.23 Further evidence that DHA may promote healthy nervous system development comes from a recent study in which researchers divided 53 normal, healthy infants into those exclusively breast-fed and those exclusively bottle-fed with a formula containing no DHA. Using assessments of visual, auditory, and sensory perception, they found definite abnormalities in all three tests in the bottle-fed babies at one year of age.</i>