Context: Sleep deprivation is known to have detrimental effects on attentional resources and cognitive functions.
Aim: The aim of this study is to assess the changes in performance, due to 24 h of sleep deprivation, in medical students
Materials and 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.
Discussion: This study infers that sleep deprivation for 24 h affected the judgment ability more than the response speed.
Conclusion: Sleep deprivation might lead to compromised performance of medical students in examinations.
Keywords: Digit symbol substitution test; digit vigilance test; letter cancellation task; sleep deprivation.