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Kids At Risk Of TV / Videogame Seizures - Experts Release New Recommendations On Reducing Risk

Date:
November 8, 2005
Source:
Blackwell Publishing Ltd.
Summary:
The Epilepsy Foundation recently issued new recommendations for families on how to limit the risk of seizures triggered by flashing images and certain patterns on television, videogames, computers and other video screens. The recommendations are based upon guidelines in the UK and Japan and are the first published in the US to be based on an expert review of research on photosensitivity (the susceptibility to visual stimulation).

The Epilepsy Foundation recently issued new recommendations for families on how to limit the risk of seizures triggered by flashing images and certain patterns on television, videogames, computers and other video screens. The recommendations are based upon guidelines in the UK and Japan and are the first published in the US to be based on an expert review of research on photosensitivity (the susceptibility to visual stimulation). The report by Graham Harding of the Clinical Neurophysiology Unit, Aston University, Birmingham, England, and his colleagues, appears in the September issue of the journal Epilepsia, the official journal of the International League Against Epilepsy.

The consensus recommendations, which are published in full on the Epilepsy Foundation website, cover factors such as light intensity, flicker, contrast, duration and pattern, and the technical parameters within these factors that are most likely to provoke seizures in susceptible individuals. Accompanying the report in Epilepsia is an article on the literature and data review conducted for the working group as part of its analysis and recommendations development.

No one knows how many people have had seizures while watching television, surfing the Internet, or playing videogames. But some epileptologists (doctors who treat seizures) have noticed an increase in the number of young people coming to them following these incidents. The Epilepsy Foundation, which has been watching this trend, believes that seizures from visual stimulation are a significant national health problem.

Physicians on the Epilepsy Foundation's Task Force on Photosensitivity advise that children and young adults 7 to 19 years of age are especially susceptible to visually induced seizures. They report the annual incidence in this age group to be one in 17,500, compared to one in 91,000 in the overall US population. This five-fold increased risk to youth was dramatically highlighted in December 1997 when nearly 700 children were hospitalized in Japan for symptoms that developed while watching a televised Pokemon episode. About 500 of these children had seizures.

Exposure to flashing light and repetitive patterns does not cause epilepsy, the tendency to recurring seizures, according to the experts. Giuseppe Erba, MD, from the Departments of Neurology and Pediatrics at the University of Rochester Medical Center, who led development of the recommendations, said "Children with undetected epilepsy may have a first recognized seizure while playing or soon after playing a videogame. Some children will have a seizure when exposed to a specific videogame and will not have another seizure unless again exposed to the same stimulus. This doesn't mean that the videogame caused the epilepsy, but it reveals the vulnerability of individuals who carry the photosensitive trait when they are exposed to visual stimuli capable of triggering the abnormal response. The same increased risk exists for children with known epilepsy who can be photosensitive, as well."

In a separate report also released today, the Epilepsy Foundation has issued recommendation for industry concerning technical characteristics of light and patterns that might pose a risk to people who are photosensitive. There is no known method to eliminate the risk of visually provoked seizures entirely because of the great variability of what triggers seizures in different individuals. Controlling these factors in videogames is especially difficult.

The photosensitive recommendations for parents are available on the Epilepsy Foundation's website epilepsyfoundation.org or by calling 800-332-1000.

###

About Epilepsia
Epilepsia is the leading, most authoritative source for current clinical and research results on all aspects of epilepsy. As the journal of the International League Against Epilepsy, Epilepsia presents subscribers with scientific evidence and clinical methodology in: clinical neurology, neurophysiology, molecular biology, neuroimaging, neurochemistry, neurosurgery, pharmacology, neuroepidemiology, and therapeutic trials. Each monthly issue features original peer reviewed articles, progress in epilepsy research, brief communications, editorial commentaries, special supplements, meeting reports, book reviews, and announcements.

About the International League Against Epilepsy
The International League Against Epilepsy (ILAE) is the world's preeminent association of physicians and other health professionals working towards a world where no persons' life is limited by Epilepsy. Its mission is to provide the highest quality of care and well-being for those afflicted with the condition and other related seizure disorders. The League aims: 1. To advance and disseminate knowledge about epilepsy; 2. To promote research, education and training; 3. To improve services and care for patients, especially by prevention, diagnosis and treatment. For more information on the ILAE, visit www.ilae.org.

About the Epilepsy Foundation
The Epilepsy Foundation, with national offices in metropolitan Washington, DC, and 55 affiliates in 39 states, is the leading voluntary health organization with programs and services for nearly 3 million people in the United States with seizures. The organization's goals are increased research, more effective treatment, the elimination of social barriers, and access to quality care, so not another moment will be lost to seizures.

About Blackwell Publishing
Blackwell Publishing is the world's leading society publisher, partnering with more than 600 academic and professional societies. Blackwell publishes over 750 journals annually and, to date has published close to 6,000 text and reference books, across a wide range of academic, medical, and professional subjects.


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The above story is based on materials provided by Blackwell Publishing Ltd.. Note: Materials may be edited for content and length.


Cite This Page:

Blackwell Publishing Ltd.. "Kids At Risk Of TV / Videogame Seizures - Experts Release New Recommendations On Reducing Risk." ScienceDaily. ScienceDaily, 8 November 2005. <www.sciencedaily.com/releases/2005/11/051108085539.htm>.
Blackwell Publishing Ltd.. (2005, November 8). Kids At Risk Of TV / Videogame Seizures - Experts Release New Recommendations On Reducing Risk. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2005/11/051108085539.htm
Blackwell Publishing Ltd.. "Kids At Risk Of TV / Videogame Seizures - Experts Release New Recommendations On Reducing Risk." ScienceDaily. www.sciencedaily.com/releases/2005/11/051108085539.htm (accessed August 1, 2014).

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