1. Dopamine receptor agonists alter gap prestimulus modulation

   • D. S. Leitner
   • Eileen M. Girten

   ORIGINAL INVESTIGATION Pages: 213 - 220

2. Behavioral sensitization and extracellular dopamine responses to amphetamine after various treatments

   • R. Kuczenski
   • David S. Segal
   • P. K. Todd

   ORIGINAL INVESTIGATION Pages: 221 - 229

3. Detection of visual signals by rats: effects of chlordiazepoxide and cholinergic and adrenergic drugs on sustained attention

   • P. J. Bushnell
   • Wendy M. Oshiro
   • Beth K. Padnos

   ORIGINAL INVESTIGATION Pages: 230 - 241

4. Effects of medial prefrontal or anterior cingulate cortex lesions on responding for cocaine under fixed-ratio and second-order schedules of reinforcement in rats

   • R. Weissenborn
   • Trevor W. Robbins
   • B. J. Everitt

   ORIGINAL INVESTIGATION Pages: 242 - 257

5. Differential effects of chlordiazepoxide on aggressive behavior in male mice: the influence of social factors

   • P. F. Ferrari
   • S. Parmigiani
   • P. Palanza

   ORIGINAL INVESTIGATION Pages: 258 - 265

6. Effects of the AMPA receptor antagonist NBQX on the development and expression of behavioral sensitization to cocaine and amphetamine

   • Yong Li
   • A. John Vartanian
   • M. E. Wolf

   ORIGINAL INVESTIGATION Pages: 266 - 276

7. Independent interaction of alprazolam and caffeine under chronic dose regimens on differential reinforcement of low-rate (DRL 45-s) performance

   • C. E. Lau
   • Yunxia Wang
   • John L. Falk

   ORIGINAL INVESTIGATION Pages: 277 - 286

8. Role of TNF-α but not NGF in murine hyperalgesia induced by parasitic infection

   • L. Aloe
   • Rolando Moroni
   • Marco Fiore

   ORIGINAL INVESTIGATION Pages: 287 - 292

9. Flavor preference conditioning by oral self-administration of ethanol

   • Christopher L. Cunningham
   • Jill S. Niehus

   ORIGINAL INVESTIGATION Pages: 293 - 302

10. Precipitating factors in spontaneous recurrence of methamphetamine psychosis

    • K. Yui
    • Takeo Ishiguro
    • Shigenori Ikemoto

    ORIGINAL INVESTIGATION Pages: 303 - 308

11. Extracellular dopamine, norepinephrine, and serotonin in the ventral tegmental area and nucleus accumbens of freely moving rats during intracerebral dialysis following systemic administration of cocaine and other uptake blockers

    • M. E. A. Reith
    • Ming-Ya Li
    • Qing-Shan Yan

    ORIGINAL INVESTIGATION Pages: 309 - 317

12. Carlos J.E. Niemegeers (1927–1997)

    • Paul A. J. Janssen
    • Frans H. L. Awouters
    • Anton A. H. P. Megens

    OBITUARY Pages: 318 - 318