1. Comparison of the subjective effects of Δ⁹-tetrahydrocannabinol and marijuana in humans

   • S. Wachtel
   • M. ElSohly
   • H. de Wit

   Original Investigation Pages: 331 - 339

2. Effects of melatonin on orofacial movements in rats

   • V. Abílio
   • J. Vera
   • R. Frussa-Filho

   Original Investigation Pages: 340 - 347

3. Adenosinergic modulation of the discriminative-stimulus effects of methamphetamine in rats

   • Patrik Munzar
   • Zuzana Justinova
   • Steven R. Goldberg

   Original Investigation Pages: 348 - 355

4. 3,4-Methylenedioxymethamphetamine (MDMA, "ecstasy") and its stereoisomers as reinforcers in rhesus monkeys: serotonergic involvement

   • William E. Fantegrossi
   • Thomas Ullrich
   • Gail Winger

   Original Investigation Pages: 356 - 364

5. L-5-Hydroxytryptophan induced increase in salivary cortisol in panic disorder patients and healthy volunteers

   • Koen Schruers
   • Rob van Diest
   • Eric Griez

   Original Investigation Pages: 365 - 369

6. Low doses of dizocilpine block the development and subsequent expression of locomotor sensitization to nicotine in rats

   • John E. Kelsey
   • Thomas Beer
   • Andrew Wagner

   Original Investigation Pages: 370 - 378

7. Prenatal ethanol exposure in rats alters serotonergic-mediated behavioral and physiological function

   • Candace Hofmann
   • Wendy Simms
   • Joanne Weinberg

   Original Investigation Pages: 379 - 386

8. Study of the addictive potential of modafinil in naive and cocaine-experienced rats

   • V. Deroche-Gamonet
   • M. Darnaudéry
   • P. Piazza

   Original Investigation Pages: 387 - 395

9. Anxiogenic effects of the CCK_B agonist pentagastrin in humans and dose-dependent increase in plasma C-peptide levels

   • Diana Radu
   • Arne Åhlin
   • Nils Lindefors

   Original Investigation Pages: 396 - 403

10. Relief of serotonin selective reuptake inhibitor induced sexual dysfunction with low-dose mianserin in patients with traumatic brain injury

    • Ornah T. Dolberg
    • Esther Klag
    • Shaul Schreiber

    Original Investigation Pages: 404 - 407

11. Genetic determinants of sensitivity to pentobarbital in inbred mice

    • John C. Crabbe
    • Pamela Metten
    • John K. Belknap

    Original Investigation Pages: 408 - 416

12. Reinstatement of cocaine seeking in 129X1/SvJ mice: effects of cocaine priming, cocaine cues and food deprivation

    • David A. Highfield
    • Andy N. Mead
    • Yavin Shaham

    Original Investigation Pages: 417 - 424

13. Nucleus accumbens dopamine and discriminated approach learning: interactive effects of 6-hydroxydopamine lesions and systemic apomorphine administration

    • Jeffrey W. Dalley
    • Yogita Chudasama
    • Trevor W. Robbins

    Original Investigation Pages: 425 - 433

14. Deficits in reward sensitivity in a neurodevelopmental rat model of schizophrenia

    • Gwenaëlle Le Pen
    • Laurent Gaudet
    • Jean-Luc Moreau

    Original Investigation Pages: 434 - 441

15. Self-administration of cocaine: scopolamine combinations by rhesus monkeys

    • Robert Ranaldi
    • William L. Woolverton

    Original Investigation Pages: 442 - 448