1. Effects of caffeine on performance and mood depend on the level of caffeine abstinence

   • Martin R. Yeomans
   • Tamzin Ripley
   • Peter J. Rogers

   Original Investigation Pages: 241 - 249

2. Effects of caffeine, sleep loss, and stress on cognitive performance and mood during U.S. Navy SEAL training

   • Harris R. Lieberman
   • William J. Tharion
   • Richard Tulley

   Original Investigation Pages: 250 - 261

3. Effects of lorazepam and oxazepam on perceptual and procedural memory functions

   • Janine Martin
   • Allison Matthews
   • Brett Daniels

   Original Investigation Pages: 262 - 267

4. Antalarmin, a putative CRH-RI antagonist, has transient reinforcing effects in rhesus monkeys

   • Jillian H. Broadbear
   • Gail Winger
   • James H. Woods

   Original Investigation Pages: 268 - 276

5. Effects of stimulant medications on the EEG of children with attention-deficit/hyperactivity disorder

   • Adam R. Clarke
   • Robert J. Barry
   • Mark Selikowitz

   Original Investigation Pages: 277 - 284

6. SR146131, a cholecystokinin-A receptor agonist, antagonizes prepulse inhibition deficits produced by dizocilpine and DOI

   • P. Shilling
   • D. Feifel

   Original Investigation Pages: 285 - 293

7. St John's wort extract (LI 160) in somatoform disorders: results of a placebo-controlled trial

   • Hans-Peter Volz
   • Harald Murck
   • Hans-Jürgen Möller

   Original Investigation Pages: 294 - 300

8. Cluster analysis of symptoms during antidepressant treatment with Hypericum extract in mildly to moderately depressed out-patients. A meta-analysis of data from three randomized, placebo-controlled trials

   • S. Kasper
   • A. Dienel

   Original Investigation Pages: 301 - 308

9. Conditioned anxiety to nicotine

   • Sandra E. File
   • Survjit Cheeta
   • Morium Akthar

   Original Investigation Pages: 309 - 317

10. Quantifying fear potentiated startle using absolute versus proportional increase scoring methods: implications for the neurocircuitry of fear and anxiety

    • David L. Walker
    • Michael Davis

    Original Investigation Pages: 318 - 328

11. Specific abnormalities in serotonin release in the prefrontal cortex of isolation-reared rats measured during behavioural performance of a task assessing visuospatial attention and impulsivity

    • J. Dalley
    • D. Theobald
    • T. Robbins

    Original Investigation Pages: 329 - 340