Susan M. Ring

November 10, 2017

Hair Cortisol in Twins: Heritability and Genetic Overlap with Psychological Variables and Stress-System Genes

Abstract Hair cortisol concentration (HCC) is a promising measure of long-term hypothalamus-pituitary-adrenal (HPA) axis activity. Previous research has suggested an…

December 26, 2016

Assessment of rates of recanting and hair testing as a biological measure of drug use in a general population sample of young people

Abstract Aims: We investigate the extent of and factors associated with denial of previously reported cannabis and other illicit drug…