Physiology of Human Photosensitivity

Arnold J. Wilkins, Paolo Bonanni, Vittorio Porciatti, Renzo Guerrini

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Human epileptic photosensitivity has been studied in several ways. (a) Visual stimulation that resembles the stimulation normally responsible for seizures, such as that from televisions or videogames, both of which typically use cathode ray tubes in which the display is created in a flickering pattern. Such stimulation is often rendered yet more epileptogenic by programmes with content that also involves flashing or patterned material. (b) Elementary visual stimuli that enable inferences to be drawn concerning the physiological trigger mechanisms. The topographic distribution of epileptiform EEG activity in response to such stimuli has complemented this approach, leading to the inference that the trigger is cortical and requires sychronised mass action of neurons. (c) Stimuli that avoid paroxysmal EEG activity and permit an investigation of the subepileptic response to visual stimuli, using the evoked potential. This has revealed abnormalities in the cortical mechanisms that control the response to strong visual stimulation.

Original languageEnglish
Pages (from-to)7-13
Number of pages7
JournalEpilepsia
Volume45
Issue numberSUPPL. 1
DOIs
StatePublished - Jan 19 2004

Fingerprint

Photic Stimulation
Electroencephalography
Cathode Ray Tube
Television
Evoked Potentials
Seizures
Neurons

Keywords

  • Contrast gain control
  • Epilepsy
  • Photoparoxysmal response
  • Photosensitivity
  • Physiology
  • Visual evoked potentials

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

Cite this

Wilkins, A. J., Bonanni, P., Porciatti, V., & Guerrini, R. (2004). Physiology of Human Photosensitivity. Epilepsia, 45(SUPPL. 1), 7-13. https://doi.org/10.1111/j.0013-9580.2004.451009.x

Physiology of Human Photosensitivity. / Wilkins, Arnold J.; Bonanni, Paolo; Porciatti, Vittorio; Guerrini, Renzo.

In: Epilepsia, Vol. 45, No. SUPPL. 1, 19.01.2004, p. 7-13.

Research output: Contribution to journalArticle

Wilkins, AJ, Bonanni, P, Porciatti, V & Guerrini, R 2004, 'Physiology of Human Photosensitivity', Epilepsia, vol. 45, no. SUPPL. 1, pp. 7-13. https://doi.org/10.1111/j.0013-9580.2004.451009.x
Wilkins, Arnold J. ; Bonanni, Paolo ; Porciatti, Vittorio ; Guerrini, Renzo. / Physiology of Human Photosensitivity. In: Epilepsia. 2004 ; Vol. 45, No. SUPPL. 1. pp. 7-13.
@article{3ee4bccc9e474b038501a6c5657306bf,
title = "Physiology of Human Photosensitivity",
abstract = "Human epileptic photosensitivity has been studied in several ways. (a) Visual stimulation that resembles the stimulation normally responsible for seizures, such as that from televisions or videogames, both of which typically use cathode ray tubes in which the display is created in a flickering pattern. Such stimulation is often rendered yet more epileptogenic by programmes with content that also involves flashing or patterned material. (b) Elementary visual stimuli that enable inferences to be drawn concerning the physiological trigger mechanisms. The topographic distribution of epileptiform EEG activity in response to such stimuli has complemented this approach, leading to the inference that the trigger is cortical and requires sychronised mass action of neurons. (c) Stimuli that avoid paroxysmal EEG activity and permit an investigation of the subepileptic response to visual stimuli, using the evoked potential. This has revealed abnormalities in the cortical mechanisms that control the response to strong visual stimulation.",
keywords = "Contrast gain control, Epilepsy, Photoparoxysmal response, Photosensitivity, Physiology, Visual evoked potentials",
author = "Wilkins, {Arnold J.} and Paolo Bonanni and Vittorio Porciatti and Renzo Guerrini",
year = "2004",
month = "1",
day = "19",
doi = "10.1111/j.0013-9580.2004.451009.x",
language = "English",
volume = "45",
pages = "7--13",
journal = "Epilepsia",
issn = "0013-9580",
publisher = "Wiley-Blackwell",
number = "SUPPL. 1",

}

TY - JOUR

T1 - Physiology of Human Photosensitivity

AU - Wilkins, Arnold J.

AU - Bonanni, Paolo

AU - Porciatti, Vittorio

AU - Guerrini, Renzo

PY - 2004/1/19

Y1 - 2004/1/19

N2 - Human epileptic photosensitivity has been studied in several ways. (a) Visual stimulation that resembles the stimulation normally responsible for seizures, such as that from televisions or videogames, both of which typically use cathode ray tubes in which the display is created in a flickering pattern. Such stimulation is often rendered yet more epileptogenic by programmes with content that also involves flashing or patterned material. (b) Elementary visual stimuli that enable inferences to be drawn concerning the physiological trigger mechanisms. The topographic distribution of epileptiform EEG activity in response to such stimuli has complemented this approach, leading to the inference that the trigger is cortical and requires sychronised mass action of neurons. (c) Stimuli that avoid paroxysmal EEG activity and permit an investigation of the subepileptic response to visual stimuli, using the evoked potential. This has revealed abnormalities in the cortical mechanisms that control the response to strong visual stimulation.

AB - Human epileptic photosensitivity has been studied in several ways. (a) Visual stimulation that resembles the stimulation normally responsible for seizures, such as that from televisions or videogames, both of which typically use cathode ray tubes in which the display is created in a flickering pattern. Such stimulation is often rendered yet more epileptogenic by programmes with content that also involves flashing or patterned material. (b) Elementary visual stimuli that enable inferences to be drawn concerning the physiological trigger mechanisms. The topographic distribution of epileptiform EEG activity in response to such stimuli has complemented this approach, leading to the inference that the trigger is cortical and requires sychronised mass action of neurons. (c) Stimuli that avoid paroxysmal EEG activity and permit an investigation of the subepileptic response to visual stimuli, using the evoked potential. This has revealed abnormalities in the cortical mechanisms that control the response to strong visual stimulation.

KW - Contrast gain control

KW - Epilepsy

KW - Photoparoxysmal response

KW - Photosensitivity

KW - Physiology

KW - Visual evoked potentials

UR - http://www.scopus.com/inward/record.url?scp=0346340048&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0346340048&partnerID=8YFLogxK

U2 - 10.1111/j.0013-9580.2004.451009.x

DO - 10.1111/j.0013-9580.2004.451009.x

M3 - Article

VL - 45

SP - 7

EP - 13

JO - Epilepsia

JF - Epilepsia

SN - 0013-9580

IS - SUPPL. 1

ER -