Visual Display Units and Risk of Seizures

Binnie, C. D.; Trenité, Dorothee Kasteleijn‐Nolst; Korte, R. De; Wilkins, Arnold J.

doi:10.1016/s0140-6736(85)91772-6

Cited by 12 publications

(3 citation statements)

References 2 publications

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“…194 A further group reports that when appropriate stimuli reach the striate and parastriate areas, activating a sufficient and critical amount of cortical tissue and inducing synchronisation of neuronal activity, an initial local epileptic discharge is produced; the latter would rapidly involve the corticoreticular or corticocortical pathways with propagation from the parieto-occipital areas and a generalised epileptic discharge. 195,196 This seems especially likely if there is also more diffuse cortical hyperexcitability, as suggested by some evoked potential studies.…”

Section: Seizures Induced By Visual Stimulimentioning

confidence: 93%

Cortical hyperexcitability and epileptogenesis: Understanding the mechanisms of epilepsy - Part 2

Badawy¹,

Harvey²,

Macdonell³

2009

Journal of Clinical Neuroscience

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Section: Seizures Induced By Visual Stimulimentioning

confidence: 93%

Cortical hyperexcitability and epileptogenesis: Understanding the mechanisms of epilepsy - Part 2

Badawy¹,

Harvey²,

Macdonell³

2009

Journal of Clinical Neuroscience

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“…At 1 (lumen s) per (foot squared) = 10.764 s cd/m 2 , this is equivalent to 237 cd/m 2 , which compares with 100–200 cd/m 2 for conventional TVs. High‐contrast stimuli are more likely to provoke seizures than are bright lights against a light background (97), within variable individual susceptibility to brightness (99). Spreading light more diffusely over the visual field increases the risk for induced seizures, provided that luminance is kept constant (100).…”

Section: Characteristics Of the Stimulimentioning

confidence: 99%

Photic‐ and Pattern‐induced Seizures: A Review for the Epilepsy Foundation of America Working Group

et al. 2005

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Summary:Purpose: This report summarizes background material presented to a consensus conference on visually provoked seizures, convened by the Epilepsy Foundation of America.Methods: A comprehensive review of literature was performed.Results: Photosensitivity, an abnormal EEG response to light or pattern stimulation, occurs in ∼0.3-3% of the population. The estimated prevalence of seizures from light stimuli is ∼1 per 10,000, or 1 per 4,000 individuals age 5-24 years. People with epilepsy have a 2-14% chance of having seizures precipitated by light or pattern. In the Pokemon cartoon incident in Japan, 685 children visited a hospital in reaction to red-blue flashes on broadcast television (TV). Only 24% who had a seizure during the cartoon had previously experienced a seizure. Photic or pattern stimulation can provoke seizures in predisposed individuals, but such stimulation is not known to increase the chance of subsequent epilepsy. Intensities of 0.2-1.5 million candlepower are in the range to trigger seizures. Frequencies of 15-25 Hz are most provocative, but the range is 1-65 Hz. Light-dark borders can induce pattern-sensitive seizures, and red color also is a factor. Seizures can be provoked by certain TV shows, movie screen images, video games, natural stimuli (e.g, sun on water), public displays, and many other sources.Conclusions: Recommendations on reducing risk of seizures have been developed by agencies in the United Kingdom, Japan, and the International Telecommunications Union, affiliated with the United Nations. The Epilepsy Foundation of America has developed a consensus of medical experts and scientists on this subject, reported in an accompanying work.

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“…Erfolglos eingesetzt wurde in einem Fall Chlorpromazin 72 , dagegen waren in einer weiteren Fallserie Chlorpromazin und/oder Haloperidol in 6 von 7 bzw. 7 von 8 Patienten mindestens vorübergehend erfolgreich 128 129 In einer weiteren Fallserie berichteten einzelne Patienten über eine positive Wirkung von Chlorpromazin, Pimozid oder Periciazin 19 25 . Nur 8 von 37 photosensiblen Patienten mit SIV nahmen an einer angebotenen Studie mit Pimozid teil 19 .…”

Section: Ergebnisseunclassified

Selbstinduzierte epileptische Anfälle Prävalenz, Ursachen und Behandlung

Rösche

Dudek

Kohnen

2021

Fortschr Neurol Psychiatr

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ZusammenfassungDie Erstbeschreibung selbstinduzierter epileptischer Anfälle stammt von 1827. Die Prävalenz wird von der Mehrzahl der Autoren bei 1% unselektierter Patienten mit Epilepsie angege-ben. Dabei machen die Patienten meist etwa ein Viertel der Patienten mit photosensibler Epilepsie aus. Es sind daneben jedoch auch viele nicht-visuelle Auslösemechanismen beschrieben. Die Ursachen können in angenehmen Empfindungen während der ausgelösten Anfälle oder einer spannungslösenden Funktion der Anfälle bestehen. Häufig wird das Selbstinduktionsmanöver als unwillkürlicher Vorgang erlebt. Die Behandlung erweist sich insgesamt als schwierig. Für einzelne Patienten sind positive Effekte einer Verhaltenstherapie beschrieben. Bei photosensiblen Epilepsien wird die Abschottung von den auslösenden Reizen durch Sonnenbrillen empfohlen. Unter pharmakologischen Therapien scheinen Fenfluramin, Clonazepam und Valproat am aussichtsreichsten. Der Erfolg hängt unabhängig von der Methode stark von der Veränderungsbereitschaft der Patienten ab.

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Visual Display Units and Risk of Seizures

Cited by 12 publications

References 2 publications

Cortical hyperexcitability and epileptogenesis: Understanding the mechanisms of epilepsy - Part 2

Cortical hyperexcitability and epileptogenesis: Understanding the mechanisms of epilepsy - Part 2

Photic‐ and Pattern‐induced Seizures: A Review for the Epilepsy Foundation of America Working Group

Selbstinduzierte epileptische Anfälle Prävalenz, Ursachen und Behandlung

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