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Updated: Jun 28, 2026
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Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
Published on: June 5, 2019
Playing a violent television game affects heart rate variability
Malena Ivarsson1, Martin Anderson, Torbjörn Akerstedt
1Stress Research Institute, Stockholm University, Stockholm, Sweden. malena.ivarsson@stressforskning.su.se
Acta Paediatrica (Oslo, Norway : 1992)
|November 14, 2008
Summary
Violent video games increase physiological arousal in boys during and after play, but do not affect their subjective sleep quality after a single session. This suggests different emotional responses to violent gaming.
Area of Science:
- Physiology
- Sleep Science
- Adolescent Health
Background:
- Video game popularity among adolescents.
- Potential impact of violent content on physiological and sleep responses.
Purpose of the Study:
- To examine the effects of violent versus nonviolent video game play on autonomic nervous system responses and sleep quality in adolescent boys.
Main Methods:
- 19 adolescent boys (12-15 years) participated in home-based sessions: violent gaming, nonviolent gaming, and no gaming.
- Physiological data (heart rate, heart rate variability) and physical activity were monitored during gaming and the following night.
- Sleep diaries and questionnaires assessed gaming experiences and sleep quality.
Main Results:
- Violent gaming led to significantly higher heart rate variability (HRV) components (very low frequency, total power) during play and the subsequent night compared to nonviolent gaming.
- No significant differences were found in subjectively perceived sleep difficulties between violent, nonviolent, or no-gaming conditions.
Conclusions:
- Violent video games elicit distinct autonomic responses in adolescent boys, indicating varied emotional engagement during and after gameplay.
- A single session of violent gaming does not appear to subjectively impair sleep quality in this age group.
- Further research is needed on long-term autonomic balance, adaptation to frequent gaming, and potential gender differences.
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