HOMEPRODUCTSSERVICESCOMPANYCONTACTFAQResearchDictionaryPharmaMobileSign Up FREE or Login

Trait-anger enhances effects of caffeine on psychomotor vigilance performance.

Abstract
This study examined the combined effects of caffeine and the personality attribute of trait-anger on the speed of psychomotor vigilance performance during sleep deprivation. 23 young adult soldiers (19 male) were administered the State-Trait Anger Expression Inventory-2 when well-rested. Participants were then sleep deprived for three consecutive nights (77 hours total) during which they completed repeated psychomotor vigilance testing. Half of the participants received four doses of oral caffeine (200 mg every 2 hr.; 800 mg total) each night, while the other half were administered a placebo. For the first night, higher scores on trait-anger, outward anger expression, and intensity of anger expression predicted better sustained overnight vigilance performance, but only for those volunteers receiving caffeine. These correlations were not significant for the subsequent nights. Findings suggest a possible synergistic effect between personality traits associated with arousal of the central nervous system and vigilance-promoting effects of caffeine.
AuthorsWilliam D S Killgore, Desiree B Killgore, Goutham Ganesan, Alexandra L Krugler, Gary H Kamimori
JournalPerceptual and motor skills (Percept Mot Skills) Vol. 103 Issue 3 Pg. 883-6 (Dec 2006) ISSN: 0031-5125 [Print] United States
PMID17326518 (Publication Type: Journal Article)
Chemical References
  • Central Nervous System Stimulants
  • Caffeine
Topics
  • Adult
  • Anger
  • Arousal (drug effects)
  • Caffeine (pharmacology)
  • Central Nervous System Stimulants (pharmacology)
  • Female
  • Humans
  • Male
  • Personality
  • Psychomotor Performance (drug effects)
  • Surveys and Questionnaires

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research network!


Choose Username:
Email:
Password:
Verify Password: