Related Experiment Video
Updated: Jul 9, 2026

The 5-Choice Serial Reaction Time Task: A Task of Attention and Impulse Control for Rodents
Published on: August 10, 2014
An update on screen time and choice reaction time among medical college students in India
Meraj Ahmad1, Jinsha J S2, Amrit Pal Singh Virk2
1Department of Physiology, Government Medical College, Datia, Madhya Pradesh, India.
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.
Related Concept Videos
Measuring Reaction Rates
Half-life of a Reaction
Pharmacovigilance
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
Time Course of Drug Effect
Drug Concentration Versus Time Correlation
Two pivotal parameters are the minimum effective concentration (MEC) and the minimum toxic concentration (MTC). The MEC is the lowest drug...
Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...

