A study of problem behaviors in 10- to 15-year-old biologically related and unrelated international adoptees Edwin J. C. G. van den OordDorret I. BoomsmaFrank C. Verhulst OriginalPaper Pages: 193 - 205
Variability and stability in cognitive abilities are largely genetic later in life R. PlominN. L. PedersenG. E. McClearn OriginalPaper Pages: 207 - 215
An international study of human handedness: The data Ira B. PerelleLee Ehrman OriginalPaper Pages: 217 - 227
Logistic regression analysis of twin data: Estimation of parameters of the multifactorial liability-threshold model P. C. ShamE. E. WaltersK. S. Kendler OriginalPaper Pages: 229 - 238
The power of the classical twin study to resolve variation in threshold traits Michael C. NealeLindon J. EavesKenneth S. Kendler OriginalPaper Pages: 239 - 258
A simple algebraic demonstration of the validity of DeFries-Fulker analysis in unselected samples with multiple kinship levels Joseph Lee RodgersMatt McGue OriginalPaper Pages: 259 - 262
Songs produced by the females of theDrosophila virilis group of species Päivi SatokangasJaana O. LiimatainenAnneli Hoikkala OriginalPaper Pages: 263 - 272
Swimming navigation, open-field activity, and extrapolation behavior of two inbred mouse strains with Robertsonian translocation of chromosomes 8 and 17 Brigitte LeitingerInga I. PoletaevaHans-Peter Lipp OriginalPaper Pages: 273 - 284
Evidence for a multigenic system controlling methyl-β-carboline-3-carboxylate (β-CCM)-induced seizures Benoît MartinCatherine MarchalandRoland Motta OriginalPaper Pages: 285 - 297