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Photosensitive epilepsy (PSE) is a form of epilepsy in which seizures are triggered by visual stimuli that form patterns in time or space, such as flashing lights, bold, regular patterns, or regular moving patterns. PSE affects approximately one in 4,000 people (5% of those with epilepsy).
Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light." [ 1 ] It is a disorientation -, vertigo -, and nausea -inducing effect of a strobe light flashing at 1 Hz to 20 Hz, approximately the frequency of human brainwaves .
People may also experience a flash of light. [5] Pain is typically absent. [2] The cause is unknown. [3] Potential organic explanations that have been investigated but ruled out include ear problems, temporal lobe seizure, nerve dysfunction, or specific genetic changes. [2] Potential risk factors include psychological stress. [2]
Epileptic auras are subjective sensory or psychic phenomena due to a focal seizure, i.e. a seizure that originates from that area of the brain responsible for the function which then expresses itself with the symptoms of the aura. It is important because it makes it clear where the alteration causing the seizure is located.
Triggers can include turning off lights, and going between dark to light or light to dark areas. [6] It is not uncommon to experience postictal headache, extremely similar to migraines after these seizures. Occipital epilepsy can cause many seizures per day and often in multiple clusters. The seizures may also spread to other areas in the brain.
Bright lights emitting from many sources — from the oven, an automatic fan, the fire alarm, an air purifier and a wireless phone charger — made it difficult for Moschen to sleep at night. His ...
They found that those with the highest levels of nighttime light exposure had a 43% higher risk of developing cerebrovascular disease, which includes ischemic stroke (caused by a blocked artery in ...
[2] [7] [3] [8] Some of the more common types of reflex epilepsy include light and music. [3] Photosensitive epilepsy is an abnormal sensitivity of the brain to visual stimuli and is the most common trigger in reflex seizures. [3] Reflex seizures can be induced by both flickering or non-flicking light, television, video games, or other visual ...