1. Effects of single and repeated exposure to apomorphine on the acoustic startle reflex and its inhibition by a visual prepulse

   • M. K. Taylor
   • J. R. Ison
   • S. B. Schwarzkopf

   Original Investigation Pages: 117 - 127

2. Catalepsy as a rodent model for detecting antipsychotic drugs with extrapyramidal side effect liability

   • D. C. Hoffman
   • H. Donovan

   Original Investigation Pages: 128 - 133

3. Further studies to examine the nature of dexfenfluramine-induced suppression of heroin self-administration

   • Y. Wang
   • N. Joharchi
   • G. A. Higgins

   Original Investigation Pages: 134 - 141

4. Effect of scopolamine on visual attention in rats

   • D. N. C. Jones
   • G. A. Higgins

   Original Investigation Pages: 142 - 149

5. Cocaine and cocaethylene: Effects on extracellular dopamine in the primate

   • R. N. Iyer
   • J. B. Nobiletti
   • C. W. Bradberry

   Original Investigation Pages: 150 - 155

6. The stimulation of cholecystokinin receptors in the rostral nucleus accumbens significantly antagonizes the EEG and behavioural effects induced by phencyclidine in rats

   • P. Popoli
   • R. Reggio
   • A. Scotti de Carolis

   Original Investigation Pages: 156 - 161

7. Learning versus performance effects of cocaine on discriminative heart rate conditioning in rats

   • Hideki Sakamoto
   • Robert D. Fitzgerald

   Original Investigation Pages: 162 - 168

8. Comparison of the spectrum of cognitive effects of alprazolam and adinazolam after single doses in healthy subjects

   • J. C. Fleishaker
   • P. D. Garzone
   • H. Weingartner

   Original Investigation Pages: 169 - 176

9. The delta opioid receptor antagonist naltrindole attenuates both alcohol and saccharin intake in rats selectively bred for alcohol preference

   • S. Krishnan-Sarin
   • S. -L. Jing
   • J. C. Froehlich

   Original Investigation Pages: 177 - 185

10. Naloxone blocks the antianxiety but not the motor effects of benzodiazepines and pentobarbital: experimental studies and literature review

    • A. Ågmo
    • A. Galvan
    • M. Morales

    Original Investigation Pages: 186 - 194

11. Reward shifts and motor responses following microinjections of opiate-specific agonists into either the core or shell of the nucleus accumbens

    • Patricia I. Johnson
    • Jason B. Goodman
    • James R. Stellar

    Original Investigation Pages: 195 - 202

12. Phencyclidine injections into the dorsal hippocampus disrupt long- but not short-term memory within a spatial learning task

    • Raymond P. Kesner
    • Manoli Dakis

    Original Investigation Pages: 203 - 208

13. Smoking, processing speed and attention in a choice reaction time task

    • T. Bates
    • G. Mangan
    • P. Corballis

    Original Investigation Pages: 209 - 212

14. The role of the ascending 5-hydroxytryptaminergic pathways in timing behaviour: further observations with the interval bisection task

    • M. -Y. Ho
    • S. S. A. Al-Zahrani
    • E. Szabadi

    Original Investigation Pages: 213 - 219

15. Differential effects of flumazenil in alcoholic and nonalcoholic cirrhotic patients

    • Flávio Kapczinski
    • David Sherman
    • Valerie Curran

    Original Investigation Pages: 220 - 226

16. Effects of the dopamine D₁ receptor antagonist SCH 39166 on the ingestive behaviour of alcohol-preferring rats

    • I. Panocka
    • R. Ciccocioppo
    • M. Massi

    Original Investigation Pages: 227 - 235