| http://dbpedia.org/ontology/abstract
|
Flicker vertigo, sometimes called the Buch … 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 can cause persons who are vulnerable to flicker vertigo to experience symptoms such as:
* Become disoriented and/or nauseated
* Blink rapidly
* Experience rapid eye movements behind closed eyelids
* Lose control of fine motor functions
* Experience muscle rigidity These effects are typically very minor and will most often subside within seconds once exposure to the strobe effect has ceased, though residual nausea and minor disorientation may be felt for several minutes. In extremely rare cases, severe reactions can happen including:
* Total persistent loss of bodily functions
* Loss of muscle/motor response
* Loss of control of aircraft or other moving vehicles
* Seizure This situation can occur whenever flickering light conditions exist. Examples of this include:
* Using electronics on low-light conditions for extended periods
* Sunlight flickering through a tree-lined street
* Sunlight reflecting off of water, especially off of rippling waves
* Fixed wing flight
* Looking at or through a slowly spinning propeller 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 weapons. 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."s, disorientation and sometimes epilepsy."
, El efecto Bucha es un efecto que induce un … El efecto Bucha es un efecto que induce un trastorno sensorial producto de una luz que parpadea con una frecuencia en el rango 1 Hz a 20 Hz. El trastorno es similar a la epilepsia aunque su ocurrencia no se limita a personas con antecedentes epilépticos. El fenómeno fue identificado por el Dr. Bucha durante la década de 1960 cuando investigó una serie de caídas inexplicables de helicópteros. Los pilotos que lograron sobrevivir explicaron que antes de perder el control del aparato experimentaron sensaciones de mareo y confusión. El Dr. Bucha descubrió que el rotor del helicóptero, cuando giraba a determinadas velocidades, podía producir destellos de luz solar a frecuencias que coincidían con las frecuencias eléctricas de las ondas cerebrales del sistema nervioso central, induciendo síntomas similares a los ataques de epilepsia, incluidos , náusea, etcétera. El efecto Bucha ha sido utilizado como principio de funcionamiento de algunos tipos de armas no letales.ento de algunos tipos de armas no letales.
|
| http://dbpedia.org/ontology/wikiPageExternalLink
|
http://www.freepatentsonline.com/7500763.html +
, http://blog.wired.com/defense/2007/02/new_roboweapon_.html +
, https://web.archive.org/web/20070102115734/http:/www.flightsafety.org/home.html +
, https://www.ncbi.nlm.nih.gov/pubmed/17169884 +
|
| http://dbpedia.org/ontology/wikiPageID
|
7864043
|
| http://dbpedia.org/ontology/wikiPageLength
|
5461
|
| http://dbpedia.org/ontology/wikiPageRevisionID
|
1096876121
|
| http://dbpedia.org/ontology/wikiPageWikiLink
|
http://dbpedia.org/resource/Disorientation +
, http://dbpedia.org/resource/Light +
, http://dbpedia.org/resource/Category:Neurological_disorders +
, http://dbpedia.org/resource/Sun +
, http://dbpedia.org/resource/Strobe +
, http://dbpedia.org/resource/Nausea +
, http://dbpedia.org/resource/Photosensitive_epilepsy +
, http://dbpedia.org/resource/Helicopter_rotor +
, http://dbpedia.org/resource/Helicopter +
, http://dbpedia.org/resource/National_Transportation_Safety_Board +
, http://dbpedia.org/resource/Vertigo_%28medical%29 +
, http://dbpedia.org/resource/Hertz +
, http://dbpedia.org/resource/Epilepsy +
, http://dbpedia.org/resource/Strobe_light +
, http://dbpedia.org/resource/Crowd_control +
, http://dbpedia.org/resource/Seizure +
, http://dbpedia.org/resource/Air_safety +
, http://dbpedia.org/resource/Non-lethal_weapon +
, http://dbpedia.org/resource/Mind_machine +
, http://dbpedia.org/resource/Electroencephalography +
|
| http://dbpedia.org/property/wikiPageUsesTemplate
|
http://dbpedia.org/resource/Template:Citation_needed +
, http://dbpedia.org/resource/Template:Reflist +
|
| http://purl.org/dc/terms/subject
|
http://dbpedia.org/resource/Category:Neurological_disorders +
|
| http://www.w3.org/ns/prov#wasDerivedFrom
|
http://en.wikipedia.org/wiki/Flicker_vertigo?oldid=1096876121&ns=0 +
|
| http://xmlns.com/foaf/0.1/isPrimaryTopicOf
|
http://en.wikipedia.org/wiki/Flicker_vertigo +
|
| owl:sameAs |
http://www.wikidata.org/entity/Q5459090 +
, https://global.dbpedia.org/id/4jQ6Z +
, http://yago-knowledge.org/resource/Flicker_vertigo +
, http://es.dbpedia.org/resource/Efecto_Bucha +
, http://rdf.freebase.com/ns/m.026gr15 +
, http://dbpedia.org/resource/Flicker_vertigo +
|
| rdf:type |
http://dbpedia.org/class/yago/PsychologicalFeature100023100 +
, http://dbpedia.org/class/yago/Event100029378 +
, http://dbpedia.org/class/yago/Mishap107314427 +
, http://dbpedia.org/class/yago/Trouble107289014 +
, http://dbpedia.org/class/yago/WikicatAviationAccidentsAndIncidents +
, http://dbpedia.org/class/yago/Misfortune107304852 +
, http://dbpedia.org/class/yago/Accident107301336 +
, http://dbpedia.org/class/yago/Abstraction100002137 +
, http://dbpedia.org/class/yago/Happening107283608 +
, http://dbpedia.org/class/yago/YagoPermanentlyLocatedEntity +
|
| rdfs:comment |
Flicker vertigo, sometimes called the Buch … 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. In extremely rare cases, severe reactions can happen including:es, severe reactions can happen including:
, El efecto Bucha es un efecto que induce un … El efecto Bucha es un efecto que induce un trastorno sensorial producto de una luz que parpadea con una frecuencia en el rango 1 Hz a 20 Hz. El trastorno es similar a la epilepsia aunque su ocurrencia no se limita a personas con antecedentes epilépticos. El efecto Bucha ha sido utilizado como principio de funcionamiento de algunos tipos de armas no letales.ento de algunos tipos de armas no letales.
|
| rdfs:label |
Efecto Bucha
, Flicker vertigo
|
