1. In vivo and in vitro hyperbaric studies in mice suggest novel sites of action for ethanol

   • Daryl L. Davies
   • Michael B. Bolger
   • R. L. Alkana

   Original Investigation Pages: 339 - 350

2. Can the ”state-dependency” hypothesis explain prevention of amphetamine sensitization in rats by NMDA receptor antagonists?

   • Yong Li
   • M. E. Wolf

   Original Investigation Pages: 351 - 361

3. Tryptophan depletion in normal volunteers produces selective impairment in memory consolidation

   • W. J. Riedel
   • Tineke Klaassen
   • Herman M. van Praag

   ORIGINAL INVESTIGATION Pages: 362 - 369

4. Evidence of the activity of lithium on 5-HT1B receptors in the mouse forced swimming test: comparison with carbamazepine and sodium valproate

   • J. P. Redrobe
   • M. Bourin

   ORIGINAL INVESTIGATION Pages: 370 - 377

5. The effect of naloxone on food-motivated behavior in the obese Zucker rat

   • Michael J. Glass
   • Eugene O’Hare
   • Allen S. Levine

   Original Investigation Pages: 378 - 384

6. Abstinence symptoms following oral THC administration to humans

   • M. Haney
   • Amie S. Ward
   • Marian W. Fischman

   ORIGINAL INVESTIGATION Pages: 385 - 394

7. Abstinence symptoms following smoked marijuana in humans

   • M. Haney
   • Amie S. Ward
   • Marian W. Fischman

   ORIGINAL INVESTIGATION Pages: 395 - 404

8. Intracerebral administration of metabotropic glutamate receptor agonists disrupts prepulse inhibition of acoustic startle in Sprague-Dawley rats

   • Steven M. Grauer
   • K. L. Marquis

   Original Investigation Pages: 405 - 412

9. Attenuation of cocaine-induced response-rate increases during repeated administration despite increases in rate of reinforcement

   • M. N. Branch
   • Diana J. Walker
   • G. Wade Brodkorb

   Original Investigation Pages: 413 - 420

10. Acute fluoxetine treatment potentiates amphetamine hyperactivity and amphetamine-induced nucleus accumbens dopamine release: possible pharmacokinetic interaction

    • T. L. Sills
    • A. J. Greenshaw
    • P. J. Fletcher

    ORIGINAL INVESTIGATION Pages: 421 - 427

11. The mu opioid agonist DAMGO alters the intravenous self-administration of cocaine in rats: mechanisms in the ventral tegmental area

    • William A. Corrigall
    • Kathleen M. Coen
    • Betty L. C. Chow

    Original Investigation Pages: 428 - 435

12. Naltrexone pretreatment decreases the reinforcing effectiveness of ethanol and saccharin but not PCP or food under concurrent progressive-ratio schedules in rhesus monkeys

    • Joshua S. Rodefer
    • Una C. Campbell
    • M. E. Carroll

    Original Investigation Pages: 436 - 446