Screen Time

and

Health

from Neuroscience News

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Objectives

Identify research trends related to the health impact of screen time.
Reflect on the nature of their own screen time and how it compares to that of parents and teens generally.
Use the Digital Habits Checkup routine to create a personal challenge to change a media habit.

Lesson Worksheet

Click the button below to open the worksheet that you will need to complete during the lesson.

Worksheet for "My Media Habits"

Presentation

Grade 12 - The Health Effects of Screen Time - Lesson Slides

Research to Consider

Differential associations between passive and active forms of screen time and adolescent mood and anxiety disordersTo quantify the strength of association between passive and active forms of screen time and adolescent major depressive episode and anxiety disorders. Data from the 2014 Ontario Child Health Study, a representative sample of 2,320 adolescents aged 12–17 years in Ontario (mean age = 14.58, male = 50.7%) were used. Screen time was measured using adolescent self-report on time spent on screen-based activities. Past 6-month occurrence of DSM-IV-TR defined major depressive episode, social phobia, generalized anxiety disorder, and specific phobia which were assessed using the Mini International Neuropsychiatric Interview for Children and Adolescents. Adolescents reporting 4 or more hours of passive screen time per day, compared to those reporting less than 2 h, were three times more likely to meet the DSM-IV-TR criteria for major depressive episode [OR = 3.28(95% CI = 1.71–6.28)], social phobia [OR = 3.15 (95% CI = 1.57–6.30)] and generalized anxiety disorder [OR = 2.92 (95% CI = 1.64–5.20)]. Passive screen time continued to be significantly associated with increased odds of disorders, after adjusting for age, sex, low income, active screen time use, sleep and physical activity. A small-to-moderate attenuation of the estimated ORs was observed in the fully adjusted model. In contrast, associations between active screen time use and depression and anxiety disorders were smaller in magnitude and failed to reach statistical significance. Passive screen time use was associated with mood and anxiety disorders, whereas active screen time was not. Further research is needed to better understand the underlying processes contributing to differential risk associated with passive versus active screen time use and adolescent mood and anxiety disorders.

Screen Media Use vs Academic Performance in Children and AdolescentsThis systematic review and meta-analysis of 58 cross-sectional studies examines the association between cognitive and academic performance and exposure to sedentary screen-based behavior among children aged 4 to 18 years.

Lesson Quiz

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