Cannabis and Other Illicit Drugs: Comorbid Use and Abuse/Dependence in Males and Females Arpana AgrawalMichael C. NealeKenneth S. Kendler OriginalPaper Pages: 217 - 228
The Genetic Basis of Problem Behavior in 5-Year-Old Dutch Twin Pairs C. E. M. van BeijsterveldtF. C. VerhulstD. I. Boomsma OriginalPaper Pages: 229 - 242
A Candidate Gene Study of CYP19 (Aromatase) and Male Sexual Orientation Michael G. DuPreeBrian S. MustanskiDean H. Hamer OriginalPaper Pages: 243 - 250
The Validity of the Neale and Kendler Model-Fitting Approach in Examining the Etiology of Comorbidity Soo Hyun RheeJohn K. HewittMichael C. Neale OriginalPaper Pages: 251 - 265
QTL Analysis of Multiple Behavioral Measures of Anxiety in Mice Norman D. HendersonMaria Grazia TurriJonathan Flint OriginalPaper Pages: 267 - 293
Anxious Behavior and Fenfluramine-Induced Prolactin Secretion in Young Rhesus Macaques with Different Alleles of the Serotonin Reuptake Transporter Polymorphism (5HTTLPR) Cynthia L. BetheaJohn M. StreicherJudy L. Cameron OriginalPaper Pages: 295 - 307
Two Wistar Rat Lines Selectively Bred for Anxiety-Related Behavior Show Opposite Reactions in Elevated Plus Maze and Fear-Sensitized Acoustic Startle Tests D. M. Yilmazer-HankeA. WiggerH. Schwegler OriginalPaper Pages: 309 - 318
Spatial Memory of Heterozygous Staggerer (Rora+/Rorasg) Versus Normal (Rora+/Rora+) Mice During Aging J. CastonC. ChianaleJ. Mariani OriginalPaper Pages: 319 - 324
Identification of QTLs Involved in Open-Field Behavior in Young and Adult Laying Hens A. J. BuitenhuisT. B. RodenburgJ. J. van der Poel OriginalPaper Pages: 325 - 333
Rare Male Mating Advantage for Inversion Karyotype in Drosophila ananassae Arundhati SomB. N. Singh OriginalPaper Pages: 335 - 342
Strain-Specificity in Nicotine Attenuation of Phencyclidine-Induced Disruption of Prepulse Inhibition in Mice: Relevance to Smoking in Schizophrenia Patients Cecile SpielewoyAthina Markou OriginalPaper Pages: 343 - 354
Behavioral Differences Among Rainbow Trout Clonal Lines Megan D. LucasRobert E. DrewGary H. Thorgaard OriginalPaper Pages: 355 - 365