1. Double-blind, placebo-controlled, hormonal, syndromal and EEG mapping studies with transdermal oestradiol therapy in menopausal depression

   • B. Saletu
   • N. Brandstätter
   • B. Koll

   Original Investigation Pages: 321 - 329

2. Effects of morphiceptin in the medial preoptic area on male sexual behavior

   • L. Matuszewich
   • J. L. Ormsby
   • E. M. Hull

   Original Investigation Pages: 330 - 335

3. Discriminative stimulus effects of the 5HT_1A agonist 8-OH-DPAT: attenuation by mu but not by kappa opioids

   • D. Morgan
   • M. J. Picker

   Original Investigation Pages: 336 - 345

4. Haloperidol differentially affects reinforcement and motivational processes in rats running an alley for intravenous heroin

   • K. McFarland
   • A. Ettenberg

   Original Investigation Pages: 346 - 350

5. Dose-dependent effects of the D₃-preferring agonist 7-OH-DPAT on motor behaviors and place conditioning

   • T. V. Khroyan
   • D. A. Baker
   • J. L. Neisewander

   Original Investigation Pages: 351 - 357

6. Euphorigenic doses of cocaine reduce [¹²³I]β-CIT SPECT measures of dopamine transporter availability in human cocaine addicts

   • Robert T. Malison
   • S. E. Best
   • E. A. Wallace

   Original Investigation Pages: 358 - 362

7. Circadian variation in rat brain AP-1 DNA binding activity after cholinergic stimulation: modulation by lithium

   • M. B. Williams
   • R. S. Jope

   Original Investigation Pages: 363 - 368

8. Anxiety: a potential predictor of vulnerability to the initiation of ethanol self-administration in rats

   • R. Spanagel
   • A. Montkowski
   • R. Landgraf

   Original Investigation Pages: 369 - 373

9. Interaction of opioids with antidepressant-induced antinociception

   • F. Sierralta
   • H. F. Miranda
   • M. Mendez

   Original Investigation Pages: 374 - 378

10. Do alpha-2 adrenoceptors modify coping strategies in rats?

    • J. Haller
    • D. T. Kiem
    • G. B. Makara

    Original Investigation Pages: 379 - 385

11. A double-blind, randomized, placebo-controlled, multi-center study of brofaromine in the treatment of post-traumatic stress disorder

    • D. G. Baker
    • B. I. Diamond
    • R. Katz

    Original Investigation Pages: 386 - 389

12. Nicotine self-administration in rats

    • E. C. Donny
    • A. R. Caggiula
    • C. Brown

    Original Investigation Pages: 390 - 394

13. The effects of scopolamine, lorazepam, and glycopyrrolate on classical conditioning of the human eyeblink response

    • Marcel Bahro
    • Trey Sunderland
    • B. G. Schreurs

    Original Investigation Pages: 395 - 400