Skip to main content

EFFECTS OF CAFFEINE ON VIGILANCE PERFORMANCE IN INTROVERT AND EXTRAVERT NONCOFFEE DRINKERS

Buy Article:

$39.00 plus tax (Refund Policy)

Abstract:

An experiment was conducted to investigate the effect of caffeine on the vigilance performance of introvert and extravert noncoffee drinkers. Forty-seven introvert and 43 extravert subjects participated in this study. All participants were female university students who do not drink coffee. Participants in both groups were given caffeinated regular coffee with approximately 140 mg of caffeine, and a coffee-like caffeine-free beverage in two separate sessions and in random order. Forty-five to 60 minutes later participants were tested using a computerized vigilance task and their performance was measured in d prime(d′). There was a significant potentiating effect of caffeine on vigilance in both introverts and extraverts. There was no significant effect of personality type or interaction between caffeine and personality type. Alterations in the parameters of the experiment are suggested for future research.

Document Type: Research Article

DOI: https://doi.org/10.2224/sbp.2001.29.6.617

Publication date: 2001-01-01

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more