# An update on screen time and choice reaction time among medical college students in India

## TL;DR

This study explores how increased screen time affects cognitive performance, specifically reaction time, among Indian medical students.

## Contribution

The study provides updated evidence on the negative impact of excessive screen time on cognitive responsiveness in young adults.

## Key findings

- Increased screen time is significantly correlated with prolonged choice reaction time.
- Screen time is inversely correlated with sleep duration, suggesting disrupted sleep as a mediator.
- No significant gender differences were observed in cognitive performance.

## Abstract

There is an increased screen time among medical college students in India. This is a huge concern. Therefore, it is of interest to
report an update on the relationship between screen time and cognitive performance, specifically choice reaction time (CRT), among 147
undergraduate students aged 18-25 years. The results indicate a significant positive correlation between increased screen time and
prolonged CRT, suggesting that excessive screen use negatively affects cognitive responsiveness. Additionally, screen time was found to
be inversely correlated with sleep duration, pointing to disrupted sleep as a potential mediator for cognitive decline. No significant
gender differences were observed in CRT, highlighting the universal impact of screen time on cognitive function. These findings emphasize
the need for balanced screen use and adequate sleep to maintain optimal cognitive performance in young adults.