Tryptophan depletion and aggressive responding in healthy males F. G. MoellerD. M. DoughertyD. R. Cherek Original Investigation Pages: 97 - 103
Fear-potentiated startle response is remarkably similar in two laboratories R. J. E. JoordensT. H. HijzenB. W. M. M. Peeters Original Investigation Pages: 104 - 109
Naloxone effects on sucrose-motivated behavior J. ClearyD. T. WeldonA. S. Levine Original Investigation Pages: 110 - 114
Alprazolam, caffeine and their interaction: relating DRL performance to pharmacokinetics C. E. LauJ. Wang Original Investigation Pages: 115 - 124
Δ9-Tetrahydrocannabinol impairs spatial memory through a cannabinoid receptor mechanism A. H. LichtmanB. R. Martin Original Investigation Pages: 125 - 131
Influence of training dose on nicotine discrimination in humans K. A. PerkinsD. D'AmicoR. L. Stiller Original Investigation Pages: 132 - 139
The discriminative stimulus effects of tripelennamine in humans C. -E. JohansonS. EvansJ. Henningfield Original Investigation Pages: 140 - 146
Genetic differences in naloxone enhancement of ethanol-induced conditioned taste aversion J. BroadbentH. V. LinderC. L. Cunningham Original Investigation Pages: 147 - 155
Pavlovian conditioning of morphine hyperthermia: assessment of interstimulus interval and CS-US overlap J. BroadbentC. L. Cunningham Original Investigation Pages: 156 - 164
Improvement of memory in rodents by the selective CB1 cannabinoid receptor antagonist, SR 141716 J. -P. TerranovaJ. -J. StormeP. Soubrié Original Investigation Pages: 165 - 172
Anxiolytic properties of endogenously occurring pregnanediols in two rodent models of anxiety E. CarboniK. W. GeeN. C. Lan Original Investigation Pages: 173 - 178
Low dose melatonin improves sleep in healthy middle-aged subjects M. E. J. AttenburrowP. J. CowenA. L. Sharpley Rapid Communication Pages: 179 - 181
Agonizing over antagonizing: what do benzodiazepine receptor antagonists demonstrate? M. SarterG. G. BerntsonB. S. Givens Letter To The Editors Pages: 182 - 184