title: Psychomotor performance of medical students: effect of 24 hours of sleep deprivation.
abstract: BACKGROUND
  Sleep deprivation is known to have detrimental effects on attentional resources and cognitive functions.
  
  
  OBJECTIVE
  The aim of this study is to assess the changes in performance, due to 24 h of sleep deprivation, in medical students
  
  
  METHODS
  The performance was assessed using simple paper-pencil tasks, such as digit symbol substitution test, digit vigilance test, and letter cancellation tasks.
  
  
  RESULTS
  The results revealed an increase in the number of errors in letter cancellation tasks and digit vigilance test, with a significant decrease in the number of correct responses on the letter cancellation task. The time taken to complete the tests increased with lack of sleep, with the digit symbol substitution test being affected the most.
  
  
  CONCLUSIONS
  This study infers that sleep deprivation for 24 h affected the judgment ability more than the response speed.
  
  
  CONCLUSIONS
  Sleep deprivation might lead to compromised performance of medical students in examinations.
authors.affiliation: Department of Physiology, University College of Medical Sciences, Delhi, India.
authors.forename: Abhinav
authors.initials: A
authors.lastname: Dixit
authors.forename: Rajat
authors.initials: R
authors.lastname: Thawani
authors.forename: Abhishek
authors.initials: A
authors.lastname: Goyal
authors.forename: Neelam
authors.initials: N
authors.lastname: Vaney