1. Alzheimer's disease and senile dementia: Biochemical characteristics and aspects of treatment

   • C. G. Gottfries

   Review Pages: 245 - 252

2. Kinetics of citalopram in elderly patients

   • K. Fredericson Overø
   • B. Toft
   • J. P. Gylding-Sabroe

   Original Investigations Pages: 253 - 257

3. Serotonergic potentiation of muscarinic agonist evoked tremor and salivation in rat and mouse

   • S. O. Ogren
   • S. Carlsson
   • T. Bartfai

   Original Investigations Pages: 258 - 264

4. Rhesus monkey cerebrospinal fluid amine metabolite changes following treatment with the reversible monoamine oxidase type-A inhibitor cimoxatone

   • Nancy A. Garrick
   • Timo Seppala
   • Dennis L. Murphy

   Original Investigations Pages: 265 - 269

5. Hashish extract impairs retention of defeat-induced submissive behavior in mice

   • H. R. Frischknecht
   • B. Siegfried
   • P. G. Waser

   Original Investigations Pages: 270 - 273

6. Motivational properties of kappa and mu opioid receptor agonists studied with place and taste preference conditioning

   • Ronald F. Mucha
   • Albert Herz

   Original Investigations Pages: 274 - 280

7. Aversive properties of naloxone in non-dependent (naive) rats may involve blockade of central β-endorphin

   • Ronald F. Mucha
   • Mark J. Millan
   • Albert Herz

   Original Investigations Pages: 281 - 285

8. Testosterone modulates the effects of ethanol on male mouse aggression

   • Joseph F. DeBold
   • Klaus A. Miczek

   Original Investigations Pages: 286 - 290

9. Nicotine-produced relearning deficit in C57BL/6J and DBA/2J mice

   • David M. Gilliam
   • Kurt Schlesinger

   Original Investigations Pages: 291 - 295

10. Differential sensitivity to ethanol, pentobarbital, and barbital in spontaneously hypertensive and normotensive Wistar-Kyoto rats

    • J. M. Khanna
    • A. D. Lê
    • C. Kim

    Original Investigations Pages: 296 - 301

11. Initial sensitivity versus acquired tolerance to ethanol in rats selectively bred for ethanol sensitivity

    • J. M. Khanna
    • A. D. Lê
    • G. Shah

    Original Investigations Pages: 302 - 306

12. The discriminative stimulus and subjective effects of d-amphetamine in humans

    • L. D. Chait
    • E. H. Uhlenhuth
    • C. E. Johanson

    Original Investigations Pages: 307 - 312

13. Effects of valproate on hyponeophagia in rats: Competitive antagonism with picrotoxin and non-competitive antagonism with RO 15-1788

    • R. A. Shephard
    • D. Stevenson
    • S. Jenkinson

    Original Investigations Pages: 313 - 317

14. The abolition of the partial reinforcement extinction effect (PREE) by amphetamine

    • I. Weiner
    • H. Bercovitz
    • J. Feldon

    Original Investigations Pages: 318 - 323

15. Behavioral effects of naloxone and nalorphine preceding and following morphine maintenance in the rhesus monkey

    • Jack Bergman
    • C. R. Schuster

    Original Investigations Pages: 324 - 327

16. The effects of compounds related to γ-aminobutyrate and benzodiazepine receptors on behavioural responses to anxiogenic stimuli in the rat: Choice behaviour in the T-maze

    • Stella Quintero
    • Cherie Buckland
    • Jane Mellanby

    Original Investigations Pages: 328 - 333

17. Effect of metergoline on human anxiety

    • F. G. Graeff
    • A. W. Zuardi
    • I. G. Karniol

    Original Investigations Pages: 334 - 338

18. Association between learning and cortical catecholamines in non-drug-treated rats

    • B. J. Sahakian
    • G. S. Sarna
    • G. Curzon

    Original Investigations Pages: 339 - 343

19. Behavioural similarities between mother rats and benzodiazepine-treated non-meternal animals

    • S. Hansen
    • A. Ferreira
    • M. E. Selart

    Original Investigations Pages: 344 - 347

20. Benzodiazepine receptor ligands and the consumption of a highly palatable diet in non-deprived male rats

    • S. J. Cooper
    • D. J. Barber
    • W. R. Moores

    Original Investigations Pages: 348 - 355

21. Discriminative stimulus properties of tripelennamine in the pigeon

    • Catherine A. Karas
    • Mitchell Picker
    • Alan Poling

    Original Investigations Pages: 356 - 358

22. The modifying influence of aging on behavior in mice neonatally injected with monosodium glutamate

    • Max Goldman
    • George E. Stowe

    Original Investigations Pages: 359 - 364

23. In vivo effects of psychotropic agents on the physical properties of cell membranes in the rat brain

    • Bruce M. Cohen
    • George S. Zubenko

    Original Investigations Pages: 365 - 368

24. Effects of psychotropic agents on the physical properties of platelet membranes in vitro

    • George S. Zubenko
    • Bruce M. Cohen

    Original Investigations Pages: 369 - 373

25. Psychotropic effects of enalapril maleate in normal volunteers

    • D. Olajide
    • M. Lader

    Rapid Communications Pages: 374 - 376

26. Oxytocin diminishes heroin tolerance in mice

    • Gábor L. Kovács
    • Mária Faludi
    • Gyula Telegdy

    Rapid Communications Pages: 377 - 379

27. Relative potencies of histamine H₁ antagonists as behavioral stimulants in the squirrel monkey

    • James W. McKearney

    Letter to the Editors Pages: 380 - 381

28. Announcement

    Announcement Pages: 382 - 382