Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Fixation-off (Scoto) sensitivity combined with photosensitivity

A Agathonikou1, M Koutroumanidis, C P Panayiotopoulos

  • 1Department of Clinical Neurophysiology and Epilepsies, St. Thomas' Hospital, London, England.

Epilepsia
|May 22, 1998
PubMed
Summary

This study reports a rare case of a teenage boy experiencing absence and myoclonic seizures. Video-electroencephalography revealed a unique co-occurrence of scotosensitivity and photosensitivity.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Corrigendum to "Clinical utility of EEG in diagnosing and monitoring epilepsy in adults" [Clin. Neurophysiol. 129 (2018) 1056-1082].

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2022
Same author

Standard procedures for the diagnostic pathway of sleep-related epilepsies and comorbid sleep disorders: an EAN, ESRS and ILAE-Europe consensus review.

European journal of neurology·2020
Same author

[Sleep-disordered breathing as a consequence of vagus nerve stimulation].

Revista de neurologia·2020
Same author

Clinical utility of EEG in diagnosing and monitoring epilepsy in adults.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2018
Same author

Hypoxic-ischaemic brain injury: imaging and neurophysiology abnormalities related to outcome.

QJM : monthly journal of the Association of Physicians·2012
Same author

Migraine triggered seizures and epilepsy triggered headache and migraine attacks: a need for re-assessment.

The journal of headache and pain·2011

Area of Science:

  • Neurology
  • Epileptology
  • Neurophysiology

Background:

  • Epilepsy is a neurological disorder characterized by recurrent seizures.
  • Photosensitivity, or the triggering of seizures by light, is a known epilepsy feature.
  • Fixation-off sensitivity (scotosensitivity), triggered by visual stimuli in darkness, is less common.

Observation:

  • A 16-year-old male with a history of absence and myoclonic seizures since age 7 presented for evaluation.
  • Standard neurological examination and intelligence testing revealed no abnormalities.
  • Video-electroencephalography (Video-EEG) was performed to investigate seizure activity.

Findings:

  • Video-EEG captured distinct seizure events correlating with specific visual stimuli.
  • The patient exhibited sensitivity to intermittent photic stimulation (photosensitivity).

Related Experiment Videos

  • Unexpectedly, the patient also demonstrated sensitivity to visual stimuli in the absence of light (fixation-off sensitivity or scotosensitivity).

    • Implications:

    • This case highlights the potential for a combined scotosensitivity and photosensitivity in certain epilepsy syndromes.
    • Understanding these combined sensitivities can aid in more accurate diagnosis and personalized treatment strategies.
    • Further research is warranted to explore the underlying mechanisms and prevalence of this dual photosensitivity.