Comparison of intravenous and intranasal heroin self-administration by morphine-maintained humans S. D. ComerEric D. CollinsMarian W. Fischman ORIGINAL INVESTIGATION Pages: 327 - 338
Naltrexone blockade of nicotine effects in cigarette smokers L. H. BrauerFrederique M. BehmJ. E. Rose ORIGINAL INVESTIGATION Pages: 339 - 346
Phenylalanine kinetics are associated with tardive dyskinesia in men but not in women M. A. RichardsonMargaret A. ReillyIstvan Sziraki ORIGINAL INVESTIGATION Pages: 347 - 357
Branched chain amino acids decrease tardive dyskinesia symptoms M. A. RichardsonMargaret L. BevansTimothy J. Maher ORIGINAL INVESTIGATION Pages: 358 - 364
Opposite effects of 3,4-methylenedioxymethamphetamine (MDMA) on sensorimotor gating in rats versus healthy humans F. X. VollenweiderS. RemensbergerM. A. Geyer ORIGINAL INVESTIGATION Pages: 365 - 372
Residual effects of zolpidem 10 mg and zopiclone 7.5 mg versus flunitrazepam 1 mg and placebo on driving performance and ocular saccades M. L. BoccaF. Le DozeP. Denise ORIGINAL INVESTIGATION Pages: 373 - 379
Relationships of plasma tryptophan availability to course of illness and clinical features of alcoholism: a preliminary study Alan C. SwannB. A. JohnsonY. Richard Chen ORIGINAL INVESTIGATION Pages: 380 - 384
Rated well-being in relation to plasma concentrations of l- and d-methadone in satisfied and dissatisfied patients on methadone maintenance treatment A. J. HiltunenO. BeckS. Borg ORIGINAL INVESTIGATION Pages: 385 - 393
Effect of d-amphetamine on prepulse inhibition of the startle reflex in humans K. E. HutchisonRobert Swift ORIGINAL INVESTIGATION Pages: 394 - 400
In vitro immunoregulatory effects of lithium in healthy volunteers M. MaesC. SongEugene Bosmans ORIGINAL INVESTIGATION Pages: 401 - 407
Altered open-field behavior in experimental chronic hepatic encephalopathy after single venlafaxine and citalopram challenges Gustav ApelqvistCecilia WikellFinn Bengtsson ORIGINAL INVESTIGATION Pages: 408 - 416
Cognitive performance in (±) 3,4-methylenedioxymethamphetamine (MDMA, “ecstasy”) users: a controlled study U. D. McCannMelissa MertlGeorge A. Ricaurte ORIGINAL INVESTIGATION Pages: 417 - 425
The potentiating effect of sertraline and fluoxetine on amphetamine-induced locomotor activity is not mediated by serotonin T. L. SillsA. J. GreenshawP. J. Fletcher ORIGINAL INVESTIGATION Pages: 426 - 432
Resolution of treatment-refractory depression with naltrexone augmentation of paroxetine – a case report Revital AmiazOrit SteinS. Schreiber LETTER TO THE EDITORS Pages: 433 - 434
