1. Oral administration of NNC 756 — a placebo controlled PET study of D₁-dopamine receptor occupancy and pharmacodynamics in man

   • P. Karlsson
   • L. Farde
   • M. Sloth-Nielsen

   Original Investigation Pages: 1 - 8

2. Acute immobilization stress reduces (±DOI)-induced 5-HT_2A receptor-mediated head shakes in rats

   • S. Yamada
   • A. Watanabe
   • M. Toru

   Original Investigation Pages: 9 - 14

3. Local 5HT₃ receptors mediate fluoxetine but not desipramine-induced increase of extracellular dopamine in the prefrontal cortex

   • G. Tanda
   • R. Frau
   • G. Di Chiara

   Original Investigation Pages: 15 - 19

4. Interactions of the subthalamic nucleus and the subpallidal area in oro-facial dyskinesia: role of GABA and glutamate

   • W. P. J. M. Spooren
   • S. E. M. Helfrich
   • A. R. Cools

   Original Investigation Pages: 20 - 26

5. Dissociations in the expression of the sedative effects of triazolam

   • H. J. Weingartner
   • K. Sirocco
   • D. Hommer

   Original Investigation Pages: 27 - 33

6. Inhibition of methamphetamine sensitization by post-methamphetamine treatment with SCH 23390 or haloperidol

   • H. Kuribara

   Original Investigation Pages: 34 - 38

7. Vigilance impairment after a single dose of benzodiazepines

   • L. Kožena
   • E. Frantik
   • M. Horváth

   Original Investigation Pages: 39 - 45

8. Blockade of the antidepressant-like effects of 8-OH-DPAT, buspirone and desipramine in the rat forced swim test by 5HT_1A receptor antagonists

   • M. J. Detke
   • S. Wieland
   • I. Lucki

   Original Investigation Pages: 47 - 54

9. Neurochemical and behavioural investigations of the NMDA receptor-associated glycine site in the rat striatum: Functional implications for treatment of parkinsonian symptoms

   • C. B. Carroll
   • V. Holloway
   • I. J. Mitchell

   Original Investigation Pages: 55 - 65

10. Effects of caffeine on cognition and mood without caffeine abstinence

    • D. M. Warburton

    Original Investigation Pages: 66 - 70

11. Changes in the acoustic startle response and prepulse inhibition of acoustic startle in rats after local injection of pertussis toxin into the ventral tegmental area

    • J. Zhang
    • J. A. Engel
    • L. Svensson

    Original Investigation Pages: 71 - 78

12. The discriminative properties of the D₁ dopamine agonist dihydrexidine in the rat

    • M. D. Schechter

    Original Investigation Pages: 79 - 84

13. Effects of phenylpropanolamine on withdrawal symptoms

    • R. C. Klesges
    • L. M. Klesges
    • M. L. Klem

    Original Investigation Pages: 85 - 91

14. Opioid blockade attenuates acquisition and expression of cocaine-induced place preference conditioning in rats

    • M. A. F. M. Gerrits
    • J. M. van Ree
    • E. E. Zvartau

    Original Investigation Pages: 92 - 98

15. Reduced proconvulsant activity of caffeine in rats after a series of electroconvulsive seizures

    • A. Francis
    • L. Fochtmann

    Original Investigation Pages: 99 - 104

16. Effects of lorazepam on perceptual integration of visual forms in healthy volunteers

    • A. Giersch
    • M. Boucart
    • François Legrand

    Original Investigation Pages: 105 - 114

17. Nitric oxide synthesis, epileptic seizures and kindling

    • L. J. Herberg
    • A. Grottick
    • I. C. Rose

    Original Investigation Pages: 115 - 123

18. Haloperidol increases smoking in patients with schizophrenia

    • J. P. McEvoy
    • O. Freudenreich
    • J. E. Rose

    Rapid Communication Pages: 124 - 126