脳みその脂質構成

Grey matter : 灰白質 = 神経細胞
White matter : 白質 = 軸索(電線)

出典:The Molecular Properties and Evolution of Excitable Cells:
International Series of Monographs in Pure and Applied Biology (C. J. Duncan)

発達障害はwhite matterに問題があるらしい

Total lipids                    3.2 - 3.55倍
Total phospholipids                 2.0倍
PC                                   1.26-1.5倍
PS                                            2.3倍
PE                       不明
Phosphosphingosides       4.8-6.0倍 ★
Glycosphingosides         3.9-13.7倍 ★ ★
Cholesterol                       3.8-6.0倍 ★

こっちにも書いてある
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1274777/pdf/biochemj00943-0103.pdf