1. Blockade of muscarinic, rather than nicotinic, receptors impairs attention, but does not interact with serotonin depletion

   • Sirja Ruotsalainen
   • Riita Miettinen
   • Jouni Sirviö

   Original Investigation Pages: 111 - 123

2. The role of genetic and early environmental factors in determining apomorphine susceptibility

   • Bart A. Ellenbroek
   • Frans Sluyter
   • Alexander R. Cools

   Original Investigation Pages: 124 - 131

3. Dose-dependent suppression by ethanol of transient auditory 40-Hz response

   • Iiro P. Jääskeläinen
   • Jyrki Hirvonen
   • Hannu Tiitinen

   Original Investigation Pages: 132 - 135

4. Discriminative stimulus effects of two doses of fentanyl in rats: pharmacological selectivity and effect of training dose on agonist and antagonist effects of mu opioids

   • Ligang Zhang
   • Ellen A. Walker
   • Alice M. Young

   Original Investigation Pages: 136 - 145

5. Discriminative stimulus properties of alprazolam

   • Jan Gommans
   • Theo H. Hijzen
   • Berend Olivier

   Original Investigation Pages: 146 - 152

6. The anxiogenic-like effect of caffeine in two experimental procedures measuring anxiety in the mouse is not shared by selective A_2A adenosine receptor antagonists

   • M. El Yacoubi
   • C. Ledent
   • J. -M. Vaugeois

   Original Investigation Pages: 153 - 163

7. Differences in anxiety-related behaviours and in sensitivity to diazepam in inbred and outbred strains of mice

   • G. Griebel
   • C. Belzung
   • D. J. Sanger

   Original Investigation Pages: 164 - 170

8. Neuroleptic-induced striatal damage in rats: a study of antioxidant treatment using accelerometric and immunocytochemical methods

   • J. B. Lohr
   • M. P. Caligiuri
   • J. A. Browning

   Original Investigation Pages: 171 - 179

9. Local administration of mu or kappa opioid agonists attenuates capsaicin-induced thermal hyperalgesia via peripheral opioid receptors in rats

   • M. C. H. Ko
   • J. E. Tuchman
   • J. H. Woods

   Original Investigation Pages: 180 - 185

10. Cross-tolerance in drug response and differential changes in central nicotinic and N-methyl-d-aspartate receptor binding following chronic treatment with either (+)- or (–)-nicotine

    • A. Wall
    • Z. -H. Gong
    • X. Zhang

    Original Investigation Pages: 186 - 195

11. Reinstatement of cocaine self-administration in rats: sex differences

    • Wendy J. Lynch
    • Marilyn E. Carroll

    Original Investigation Pages: 196 - 200

12. A microdialysis study of the noradrenergic response in rat frontal cortex and hypothalamus to a conditioned cue for aversive, naturalistic environmental stimuli

    • R. McQuade
    • S.C. Stanford

    Original Investigation Pages: 201 - 208

13. Dopaminergic involvement in the discriminative-stimulus effects of methamphetamine in rats

    • P. Munzar
    • S. R. Goldberg

    Original Investigation Pages: 209 - 216