1. No evidence for a physiological coupling between melatonin and glucocorticoids

   • Göran Hajak
   • Andrea Rodenbeck
   • G. Huether

   ORIGINAL INVESTIGATION Pages: 313 - 322

2. IBZM SPECT imaging of striatal dopamine-2 receptors in psychotic patients treated with the novel antipsychotic substance quetiapine in comparison to clozapine and haloperidol

   • B. Küfferle
   • Johannes Tauscher
   • Siegfried Kasper

   ORIGINAL INVESTIGATION Pages: 323 - 328

3. Central 5-HT depletion enhances impulsive responding without affecting the accuracy of attentional performance: interactions with dopaminergic mechanisms

   • A. A. Harrison
   • Barry J. Everitt
   • T. W. Robbins

   ORIGINAL INVESTIGATION Pages: 329 - 342

4. Nicotine withdrawal leads to increased sensitivity of serotonergic neurons to the 5-HT1A agonist 8-OH-DPAT

   • K. Rasmussen
   • Janet F. Czachura

   ORIGINAL INVESTIGATION Pages: 343 - 346

5. Use of antisense oligodeoxynucleotide to δ-opioid receptor mRNA in the study of turnover of δ-opioid receptors in the spinal cord of the mouse

   • Minoru Narita
   • Hirokazu Mizoguchi
   • L. F. Tseng

   ORIGINAL INVESTIGATION Pages: 347 - 350

6. Amphetamine-induced withdrawal responding: effects of repeated drug administration

   • W. F. Caul
   • Jonathan R. Stadler
   • Robert J. Barrett

   ORIGINAL INVESTIGATION Pages: 351 - 355

7. Role of central dopaminergic and 5-hydroxytryptaminergic projections in the behavioral responses elicited by thyrotropin-releasing hormone in rats

   • D. Funk
   • R. M. Post
   • A. Pert

   ORIGINAL INVESTIGATION Pages: 356 - 362

8. Self-administration of cocaine and heroin combinations by rhesus monkeys responding under a progressive-ratio schedule

   • James K. Rowlett
   • W. L. Woolverton

   ORIGINAL INVESTIGATION Pages: 363 - 371

9. Synergism between buprenorphine and cocaine on the rotational behavior of the nigrally-lesioned rat

   • H. L. Kimmel
   • Ronald J. Tallarida
   • Stephen G. Holtzman

   ORIGINAL INVESTIGATION Pages: 372 - 377

10. Theory and statistics of detecting synergism between two active drugs: cocaine and buprenorphine

    • R. J. Tallarida
    • Heather L. Kimmel
    • Stephen G. Holtzman

    ORIGINAL INVESTIGATION Pages: 378 - 382

11. Gamma-vinyl GABA attenuates cocaine-induced lowering of brain stimulation reward thresholds

    • Stephanie A. Kushner
    • Stephen L. Dewey
    • C. Kornetsky

    ORIGINAL INVESTIGATION Pages: 383 - 388

12. Effects of perinatal anoxia on the acute locomotor response to repeated amphetamine administration in adult rats

    • Wayne G. Brake
    • Patricia Boksa
    • A. Gratton

    ORIGINAL INVESTIGATION Pages: 389 - 395

13. A PET-study of [11C]FLB 457 binding to extrastriatal D2-dopamine receptors in healthy subjects and antipsychotic drug-treated patients

    • L. Farde
    • Tetsuya Suhara
    • Christer Halldin

    ORIGINAL INVESTIGATION Pages: 396 - 404

14. Aminoglutethimide, a corticosteroid synthesis inhibitor, facilitates brain stimulation reward in food-restricted rats: an investigation of underlying mechanisms

    • G. C. Abrahamsen
    • Mulota J. Kandawire
    • Kenneth D. Carr

    ORIGINAL INVESTIGATION Pages: 405 - 412