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Cardiovascular Reactivity to Short Duration Videos in Adolescents: An Exploratory Study

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http://www.scirp.org/journal/PaperInformation.aspx?PaperID=48897#.VK9Mc8nQrzE

Author(s)  
Julia Leclerc, Juliette Samson, Frederike Carrier-Toutant, Jacques E. Leclerc

Affiliation(s)
Laval University, Quebec City, Canada.
Laval University, Quebec City, Canada.
Laval University, Quebec City, Canada.
Laval University, Quebec City, Canada.

ABSTRACT
The objective of this study is to observe the cardiovascular changes associated to the visualization of three YouTube video sequences: humor-sad-violent in an adolescent population. Thirty-two adolescents (16 males and 16 females) were shown three YouTube one-minute sequences (humor-sad-violent). At key points during the sequences, the cardiac rate (HR) and blood pressure (BP) were recorded. A subjective perceptual evaluation of the videos was obtained. Statistical evaluation of the data was done with the Mann-Whitney test. Minor changes in HR and the diastolic blood pressure (DP) were recorded but did not prove to be statistically significant. Of statistical significance (p < 0.05), the males rated the violent sequence as more violent than the females did. There was a minor decrease of their HR and DP. An average 10 mmHg decrease in their systolic blood pressure nearly reached statistical significance (p = 0.067). In this exploratory study, exposure to a violent video sequence was associated with a decrease of the male adolescents’ average systolic pressure. It is suggested that such a response may mean a relaxing effect due to this activity. Further investigation is required with a larger cohort and continuous monitoring to confirm these findings.

KEYWORDS
Adolescents, Cardiovascular Activity, Short Duration Videos, Humor, Sadness, Violence

Cite this paper
Leclerc, J. , Samson, J. , Carrier-Toutant, F. & Leclerc, J. (2014). Cardiovascular Reactivity to Short Duration Videos in Adolescents: An Exploratory Study. Advances in Anthropology, 4, 141-148. doi: 10.4236/aa.2014.43018.

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