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- Flicker_vertigo abstract "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.\" 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. The effects are similar to seizures caused by epilepsy (in particular photosensitive epilepsy), but are not restricted to people with histories of epilepsy.This phenomenon has been observed during helicopter flight; a Dr. Bucha identified the phenomenon in the 1950s when called upon to investigate a series of similar and unexplained helicopter crashes. Flicker vertigo in a helicopter occurs when the pilot or front passenger looks up through the blades of the main rotor as it turns in the sun causing the light to strobe. The strobe light effect causes persons who are vulnerable to flicker vertigo to become disoriented, lose control of the aircraft or have a seizure. A similar situation can occur in fixed wing flight whenever flickering light conditions exist. An example would be looking through a slowly spinning propeller while the airplane is landing facing the sun.According to The US Naval Flight Surgeons Manual, flicker vertigo is a rare occurrence.Flicker vertigo has been considered as a principle for various forms of non-lethal weapon. A related crowd-control device was invented by Charles Bovill, which \"employed a combination of ultra-sonic waves and strobe lights to induce acute discomfort, sickness, disorientation and sometimes epilepsy.\"".
- Flicker_vertigo wikiPageExternalLink new_roboweapon_.html.
- Flicker_vertigo wikiPageExternalLink home.html.
- Flicker_vertigo wikiPageExternalLink 7500763.html.
- Flicker_vertigo wikiPageExternalLink 17169884.
- Flicker_vertigo wikiPageID "7864043".
- Flicker_vertigo wikiPageLength "4489".
- Flicker_vertigo wikiPageOutDegree "20".
- Flicker_vertigo wikiPageRevisionID "633160742".
- Flicker_vertigo wikiPageWikiLink Aviation_safety.
- Flicker_vertigo wikiPageWikiLink Category:Neurology.
- Flicker_vertigo wikiPageWikiLink Crowd_control.
- Flicker_vertigo wikiPageWikiLink Electroencephalography.
- Flicker_vertigo wikiPageWikiLink Epilepsy.
- Flicker_vertigo wikiPageWikiLink Epileptic_seizure.
- Flicker_vertigo wikiPageWikiLink Helicopter.
- Flicker_vertigo wikiPageWikiLink Helicopter_rotor.
- Flicker_vertigo wikiPageWikiLink Hertz.
- Flicker_vertigo wikiPageWikiLink Light.
- Flicker_vertigo wikiPageWikiLink National_Transportation_Safety_Board.
- Flicker_vertigo wikiPageWikiLink Nausea.
- Flicker_vertigo wikiPageWikiLink Non-lethal_weapon.
- Flicker_vertigo wikiPageWikiLink Orientation_(mental).
- Flicker_vertigo wikiPageWikiLink Photosensitive_epilepsy.
- Flicker_vertigo wikiPageWikiLink Strobe_light.
- Flicker_vertigo wikiPageWikiLink Sun.
- Flicker_vertigo wikiPageWikiLink Vertigo.
- Flicker_vertigo wikiPageWikiLinkText "Flicker vertigo".
- Flicker_vertigo wikiPageWikiLinkText "flicker vertigo".
- Flicker_vertigo wikiPageUsesTemplate Template:Psychology-stub.
- Flicker_vertigo wikiPageUsesTemplate Template:Reflist.
- Flicker_vertigo subject Category:Neurology.
- Flicker_vertigo type Redirect.
- Flicker_vertigo type Specialty.
- Flicker_vertigo comment "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.\" 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.".
- Flicker_vertigo label "Flicker vertigo".
- Flicker_vertigo sameAs Q5459090.
- Flicker_vertigo sameAs Efecto_Bucha.
- Flicker_vertigo sameAs m.026gr15.
- Flicker_vertigo sameAs Q5459090.
- Flicker_vertigo wasDerivedFrom Flicker_vertigo?oldid=633160742.
- Flicker_vertigo isPrimaryTopicOf Flicker_vertigo.