1. Possible involvement of differing classes of dopamine D-2 receptors in yawning and stereotypy in rats

   • Katsushi Yamada
   • Mariko Nagashima
   • Tatsuo Furukawa

   Original Investigations Pages: 141 - 144

2. A taste aversion model of drug discrimination learning: training drug and condition influence rate of learning, sensitivity and drug specificity

   • Thomas V. Jaeger
   • Ronald F. Mucha

   Original Investigations Pages: 145 - 150

3. ACTH-induced behaviors and their modulation by serotonergic agonists differ in neonatal and weanling rat pups

   • C. L. Kirstein
   • J. Traber
   • L. P. Spear

   Original Investigations Pages: 151 - 158

4. Paternal alcohol exposure: paradoxical effect in mice and rats

   • E. L. Abel
   • P. Bilitzke

   Original Investigations Pages: 159 - 164

5. Increased serotonin 5-HT2 receptor binding on blood platelets of suicidal men

   • Anat Biegon
   • Alexander Grinspoon
   • Roberto Mester

   Original Investigations Pages: 165 - 167

6. Yawning induced by apomorphine, physostigmine or pilocarpine is potentiated by dihydropyridine calcium channel blockers

   • Anne Bourson
   • Paul C. Moser

   Original Investigations Pages: 168 - 172

7. Effects of acute administration of diazepam andd-amphetamine on aggressive and escape responding of normal male subjects

   • Don R. Cherek
   • Joel L. Steinberg
   • Ralph Spiga

   Original Investigations Pages: 173 - 181

8. The anorectic effect of SK&F 38393, a selective dopamine D₁ receptor agonist: a microstructural analysis of feeding and related behaviour

   • S. J. Cooper
   • J. Francis
   • I. N. Rusk

   Original Investigations Pages: 182 - 187

9. A pharmacological analysis of the eating response induced by 8-OH-DPAT injected into the dorsal raphé nucleus reveals the involvement of a dopaminergic mechanism

   • Paul J. Fletcher
   • Michael Davies

   Original Investigations Pages: 188 - 194

10. Effects of dopaminergic agents on alcohol consumption by rats in a limited access paradigm

    • M. A. Linseman

    Original Investigations Pages: 195 - 200

11. Naloxone enhances the expression of morphine-induced conditioned place preference

    • J. L. Neisewander
    • R. C. Pierce
    • M. T. Bardo

    Original Investigations Pages: 201 - 205

12. Ritanserin, a 5-HT₂ receptor antagonist, does not modify ECT-induced prolactin release

    • Y. Papakostas
    • M. Markianos
    • C. Stefanis

    Original Investigations Pages: 206 - 208

13. Effects of N-methyl-d-aspartate antagonism on spatial learning in mice

    • Margaret Upchurch
    • Jeanne M. Wehner

    Original Investigations Pages: 209 - 214

14. Effects of NMDA receptor antagonists on passive avoidance learning and retrieval in rats and mice

    • Nancy Venable
    • Peter H. Kelly

    Original Investigations Pages: 215 - 221

15. Sleep laboratory investigations on hypnotic properties of melatonin

    • F. Waldhauser
    • B. Saletu
    • I. Trinchard-Lugan

    Original Investigations Pages: 222 - 226

16. Effects of acute or chronic carbamazepine on experimentally-induced conflict in the rat

    • R. N. Almeida
    • J. R. Leite

    Original Investigations Pages: 227 - 229

17. Effect of diazepam on behaviour and associated changes in ascorbate concentration in rat brain areas: striatum, n. accumbens and hippocampus

    • Martyn G. Boutelle
    • Lennart Svensson
    • Marianne Fillenz

    Original Investigations Pages: 230 - 236

18. Changes in seizure threshold and aggression during chronic treatment with three anticonvulsants and on drug withdrawal

    • Sandra E. File
    • Lucy J. Wilks

    Original Investigations Pages: 237 - 242

19. Scopolamine effects on memory, language, visuospatial praxis and psychomotor speed

    • Charles Flicker
    • Michael Serby
    • Steven H. Ferris

    Original Investigations Pages: 243 - 250

20. Nicotine conditions place preferences after intracerebral administration in rats

    • Edgar T. Iwamoto

    Original Investigations Pages: 251 - 257

21. The serotonin₂ antagonist ritanserin blocks quasi-morphine withdrawal at a time when mianserin is no longer effective

    • Bethany S. Neal
    • Sheldon B. Sparber

    Original Investigations Pages: 258 - 266

22. Repeated exposure to diisopropylfluorophosphate (DFP) produces increased sensitivity to cholinergic antagonists in discrimination retention and reversal

    • K. Raffaele
    • D. Olton
    • Z. Annau

    Original Investigations Pages: 267 - 274

23. Bromocriptine induces climbing behaviour: possible D-1 or D-2 dopamine receptor involvement

    • Mohammad-Reza Zarrindast
    • Katayoun Shahed-Dirin

    Original Investigations Pages: 275 - 280

24. One-trial tolerance to the anxiolytic effects of chlordiazepoxide in the plus-maze

    • Sandra E. File

    Rapid Communications Pages: 281 - 282

25. Metergoline abolishes the prolactin response to buspirone

    • C. A. Gregory
    • I. M. Anderson
    • P. J. Cowen

    Rapid Communications Pages: 283 - 284

26. Influence of the D-2 dopamine receptor agonist quinpirole on the odor detection performance of rats before and after spiperone administration

    • Richard L. Doty
    • Judith M. Risser

    Erratum Pages: 285 - 285