1. 5-HT₃ receptor antagonist MDL 72222 attenuates cocaine- and mazindol-, but not methylphenidate-induced neurochemical and behavioral effects in the rat

   • Aino Kankaanpää
   • Esa Meririnne
   • Timo Seppälä

   Original Investigation Pages: 341 - 350

2. Depot naltrexone: long-lasting antagonism of the effects of heroin in humans

   • Sandra D. Comer
   • Eric D. Collins
   • Marian W. Fischman

   Original Investigation Pages: 351 - 360

3. Neuronal nitric oxide synthase inhibition decreases cocaine self-administration behavior in rats

   • Stephanie L. Collins
   • Kathleen M. Kantak

   Original Investigation Pages: 361 - 369

4. Hyperactivity and dopamine D₁ receptor activation in mice lacking girk2 channels

   • Y. Blednov
   • M. Stoffel
   • R. Harris

   Original Investigation Pages: 370 - 378

5. Involvement of CB1 cannabinoid receptors in emotional behaviour

   • Miquel Martin
   • Catherine Ledent
   • Olga Valverde

   Original Investigation Pages: 379 - 387

6. Effects of fenfluramine, m-CPP and triazolam on repeated-acquisition in squirrel monkeys before and after neurotoxic MDMA administration

   • Peter J. Winsauer
   • Una D. McCann
   • Joseph M. Moerschbaecher

   Original Investigation Pages: 388 - 396

7. The effects of smoked cocaine during the follicular and luteal phases of the menstrual cycle in women

   • Suzette M. Evans
   • Margaret Haney
   • Richard W. Foltin

   Original Investigation Pages: 397 - 406

8. Role of D₁-like receptors in amphetamine-induced behavioral sensitization: a study using D_1A receptor knockout mice

   • Patrick E. Karper
   • Herminia De La Rosa
   • Cynthia A. Crawford

   Original Investigation Pages: 407 - 414

9. Intake of saccharin, salt, and ethanol solutions is increased by infusion of a mu opioid agonist into the nucleus accumbens

   • Min Zhang
   • Ann E. Kelley

   Original Investigation Pages: 415 - 423

10. Brain, plasma and tissue pharmacokinetics of risperidone and 9-hydroxyrisperidone after separate oral administration to rats

    • Manickam Aravagiri
    • Stephen R. Marder

    Original Investigation Pages: 424 - 431

11. Chromium treatment decreases the sensitivity of 5-HT_2A receptors

    • M.-J. Attenburrow
    • J. Odontiadis
    • M. Franklin

    Original Investigation Pages: 432 - 436

12. Long-term changes in social interaction and reward following repeated MDMA administration to adolescent rats without accompanying serotonergic neurotoxicity

    • Kevin C. Fone
    • Simon R. Beckett
    • Laura Maddocks

    Original Investigation Pages: 437 - 444

13. Managing reboxetine-associated urinary hesitancy in a patient with major depressive disorder: a case study

    • S. Kasper

    Case Report Pages: 445 - 446