1. Cocaine-seeking by rats: regulation, reinforcement and activation

   • M.C. Olmstead
   • J.A. Parkinson
   • A. Dickinson

   Original Investigation Pages: 123 - 131

2. Effects of sex and the estrous cycle on regulation of intravenously self-administered cocaine in rats

   • Wendy J. Lynch
   • Maria N. Arizzi
   • Marilyn E. Carroll

   Original Investigation Pages: 132 - 139

3. Psychological stress, drug-related cues and cocaine craving

   • R. Sinha
   • T. Fuse
   • S.S. O'Malley

   Original Investigation Pages: 140 - 148

4. Fenfluramine effects on impulsivity in a sample of adults with and without history of conduct disorder

   • Don R. Cherek
   • Scott D. Lane

   Original Investigation Pages: 149 - 156

5. Different effects of 5-HT_1A receptor agonists and benzodiazepine anxiolytics on the emotional state of naive and stressed mice: a study using the hole-board test

   • M. Tsuji
   • H. Takeda
   • T. Matsumiya

   Original Investigation Pages: 157 - 166

6. Effects of low doses of caffeine on cognitive performance, mood and thirst in low and higher caffeine consumers

   • H.J. Smit
   • P.J. Rogers

   Original Investigation Pages: 167 - 173

7. Increased dopamine D₂ receptor binding after long-term treatment with antipsychotics in humans: a clinical PET study

   • Simone Silvestri
   • Mary V. Seeman
   • Philip Seeman

   Original Investigation Pages: 174 - 180

8. Characterization of the discriminative stimulus effects of GABA_A receptor ligands in Macaca fascicularis monkeys under different ethanol training conditions

   • Kathleen A. Grant
   • Courtney A. Waters
   • Kendall T. Szeliga

   Original Investigation Pages: 181 - 188

9. Effect of intra-accumbens dopamine receptor agents on reactivity to spatial and non-spatial changes in mice

   • Roberto Coccurello
   • Walter Adriani
   • Andrea Mele

   Original Investigation Pages: 189 - 199

10. Chronic food restriction in rats augments the central rewarding effect of cocaine and the δ₁ opioid agonist, DPDPE, but not the δ₂ agonist, deltorphin-II

    • Kenneth D. Carr
    • Gye-Young Kim
    • Soledad Cabeza de Vaca

    Original Investigation Pages: 200 - 207

11. Enhanced ultrasonic vocalization and Fos protein expression following ethanol withdrawal: effects of flumazenil

    • Sheryl S. Moy
    • Darin J. Knapp
    • George R. Breese

    Original Investigation Pages: 208 - 215

12. Scopolamine inhibits cocaine-conditioned but not unconditioned stimulant effects in mice

    • Yossef Itzhak
    • Julio L. Martin

    Original Investigation Pages: 216 - 223

13. Anticonflict effect of the glycine_B receptor partial agonist, D-cycloserine, in rats. Pharmacological analysis

    • Aleksandra Kłodzińska
    • Ewa Chojnacka-Wójcik

    Rapid Communication Pages: 224 - 228