Genes: 5HT: Frontal and limbic metabolic differences in subjects selected according to genetic variation of the SLC6A4 gene polymorphism.

Entrez PubMed: "Allelic variants in the promoter region of the serotonin transporter (5-HTT) gene have been implicated in several psychiatric disorders and personality traits. In particular, two common alleles in a variable repeat sequence of the promoter region (SLC6A4) have been differentially associated with a display of abnormal levels of anxiety and affective illness in individuals carrying the 's' allele. "

Frontal and limbic metabolic differences in subjects selected according to genetic variation of the SLC6A4 gene polymorphism.
Graff-Guerrero A, De la Fuente-Sandoval C, Camarena B, Gomez-Martin D, Apiquian R, Fresan A, Aguilar A, Mendez-Nunez JC, Escalona-Huerta C, Drucker-Colin R, Nicolini H.
Neuroimage. 2005 May 1;25(4):1197-204.