1. Contralateral turning elicited by unilateral stimulation of dopamine D₂ and D₁ receptors in the nucleus accumbens of rats is due to stimulation of these receptors in the shell, but not the core, of this nucleus

   • N. Koshikawa
   • M. Kitamura
   • A. R. Cools

   Original Investigation Pages: 185 - 190

2. Evidence for dissociable mechanisms of amphetamine-and stress-induced behavioral sensitization: effects of MK-801 and haloperidol pretreatment

   • B. K. Tolliver
   • L. B. Ho
   • S. P. Berger

   Original Investigation Pages: 191 - 198

3. Effects of the delta opioid agonist BW373U86 in pigeons trained to discriminate fentanyl, bremazocine and water in a three-choice drug discrimination procedure

   • S. S. Negus
   • D. Morgan
   • M. J. Picker

   Original Investigation Pages: 199 - 205

4. Effects of the selective angiotensin II receptor antagonists losartan and PD123177 in animal models of anxiety and memory

   • J. Shepherd
   • D. J. Bill
   • K. J. Stanhope

   Original Investigation Pages: 206 - 218

5. Effect of sensitization of stereotypy on the acquisition and retention of tolerance to amphetamine hypophagia

   • D. L. Wolgin
   • K. M. Hughes

   Original Investigation Pages: 219 - 225

6. Cigarette smoking and psychophysiological stress responsiveness: effects of recent smoking and temporary abstinence

   • A. Tsuda
   • A. Steptoe
   • C. Kirschbaum

   Original Investigation Pages: 226 - 233

7. Interactions of selective serotonin reuptake inhibitors with the serotonin 5-HT_2C receptor

   • E. -P. Pälvimäki
   • H. Majasuo
   • J. Hietala

   Original Investigation Pages: 234 - 240

8. Pharmacokinetics and bioavailability of midazolam after intravenous, subcutaneous, intraperitoneal and oral administration under a chronic food-limited regimen: relating DRL performance to pharmacokinetics

   • C. E. Lau
   • F. Ma
   • C. Smith

   Original Investigation Pages: 241 - 248

9. AMPA antagonists differ from NMDA antagonists in their effects on operant DRL and delayed matching to position tasks

   • D. N. Stephens
   • B. J. Cole

   Original Investigation Pages: 249 - 259

10. Lorazepam impairs perceptual integration of visual forms: a central effect

    • A. Giersch
    • M. Boucart
    • J. -M. Danion

    Original Investigation Pages: 260 - 270

11. Persisting changes in brain glucose uptake following neurotoxic doses of phencyclidine which mirror the acute effects of the drug

    • G. D. Ellison
    • A. S. Keys

    Rapid Communication Pages: 271 - 274

12. Pharmacokinetic responses to caffeine in volunteers with higher scores for neuroticism

    • F. P. Meyer

    Letter To The Editors Pages: 275 - 276