Cognition genes on autosomes: the paradox

Homozygosity mapping in consanguineous families reveals extreme heterogeneity of non-syndromic autosomal recessive mental retardation and identifies eight novel gene loci
Najmabadi H et al. (2007)
Human Genetics 12: 43–48
A new locus for autosomal recessive non-syndromic mental retardation maps to 1p21.1–p13.3
Uyguner O et al. (2007)
Clinical Genetics 71: 212–219