Growing Old but Not Growing Apart: Twin Similarity in the Latter Half of the Lifespan Matt McGueKaare Christensen Original Research 28 August 2012 Pages: 1 - 12
ADRB2, brain white matter integrity and cognitive ageing in the Lothian Birth Cohort 1936 Donald M. LyallLorna M. LopezIan J. Deary Original Research 11 December 2012 Pages: 13 - 23
Genetic Variation at the TPH2 Gene Influences Impulsivity in Addition to Eating Disorders Margarita C. T. Slof-Op’t LandtMeike BartelsIngrid Meulenbelt Original Research 14 December 2012 Pages: 24 - 33
What are We Measuring When We Test Strain Differences in Anxiety in Mice? Timothy P. O’LearyRhian K. GunnRichard E. Brown Original Research 04 January 2013 Pages: 34 - 50
Prenatal Rapamycin Results in Early and Late Behavioral Abnormalities in Wildtype C57Bl/6 Mice Peter T. TsaiEmily Greene-ColozziMustafa Sahin Original Research 12 December 2012 Pages: 51 - 59
Behavioral Characterization of a White-Throated Sparrow Homozygous for the ZAL2m Chromosomal Rearrangement Brent M. HortonYuchen HuDonna L. Maney Original Research 21 December 2012 Pages: 60 - 70
Operating Characteristics of Alternative Statistical Methods for Detecting Gene-by-Measured Environment Interaction in the Presence of Gene–Environment Correlation in Twin and Sibling Studies Carol A. Van HulleBenjamin B. LaheyPaul J. Rathouz Original Research 23 October 2012 Pages: 71 - 84
A Generalized Defries–Fulker Regression Framework for the Analysis of Twin Data Laura C. LazzeroniAmrita Ray Original Research 20 December 2012 Pages: 85 - 96