Results 21 to 30 of about 26,738 (213)

Cortical spreading depression can be triggered by sensory stimulation in primed wild type mouse brain: a mechanistic insight to migraine aura generation

open access: yesThe Journal of Headache and Pain, 2022
Background Unlike the spontaneously appearing aura in migraineurs, experimentally, cortical spreading depression (CSD), the neurophysiological correlate of aura is induced by non-physiological stimuli.
Sahin Hanalioglu   +7 more
doaj   +1 more source

Rod Driven Frequency Entrainment and Resonance Phenomena

open access: yesFrontiers in Human Neuroscience, 2016
A controversy exists on photic driving in the human visual cortex evoked by intermittent photic stimulation. Frequency entrainment and resonance phenomena are reported for frequencies higher than 12 Hz in some studies while missing in others.
Christina Salchow   +9 more
doaj   +1 more source

Photoparoxysmal responses

open access: yesArquivos de Neuro-Psiquiatria, 1990
Sixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. The PPR showed prevalence in women (75.4%). Seizures were found in 66.1% of cases.
Mauro Muszkat   +3 more
doaj   +1 more source

Photosensitive Self-Induced Seizures Since Childhood

open access: yesActa Médica Portuguesa, 2021
A 15-year-old girl was admitted to the emergency room because of a bilateral tonic-clonic seizure. The family reported that the episode began with rapid hand movements in front of the patient’s eyes while staring at the sun. The patient has a history of
Eduardo Palha-Fernandes   +2 more
doaj   +1 more source

Photic Activation [PDF]

open access: yes, 1954
It was concluded that one of the most valuable activating method for EEG. is photic stimulation. But the existing photic stimulator is quite expensive.
Okumura, Shuzo   +3 more
core   +1 more source

Photosensitive Temporal Lobe Epilepsy: A Case Report

open access: yesArchives of Epilepsy, 2021
Photic-induced seizures are usually generalized or arise from the occipital cortex. In the present study, we reported an unusual case of photosensitive temporal lobe epilepsy in a patient who developed photosensitive occipital lobe epilepsy between the ...
Ayşe Destina YALÇIN, Reyhan SÜRMELİ
doaj   +1 more source

Photic driving in the electroencephalogram of children and adolescents: harmonic structure and relation to the resting state

open access: yesBrazilian Journal of Medical and Biological Research, 2001
In order to identify latent bioelectrical oscillators, 15 normal subjects (aged 9-17 years, 8 males, 7 females) were subjected to intermittent photic stimulation.
V.V. Lazarev   +3 more
doaj   +1 more source

PHOTIC STIMULATION AND LEG MOVEMENTS IN THE CRAYFISH [PDF]

open access: yesJournal of General Physiology, 1933
When Cambarus clarkii is exposed to a source of light so that both eyes are equally illuminated, leg movements of the two sides are equal in frequency and amplitude. On covering one eye and exposing the uncovered eye to light, leg movements on the side of the uncovered eye are more frequent and are of greater amplitude than on the side ...
B, Kropp, E V, Enzmann
openaire   +2 more sources

Electroclinical characteristics of photosensitive epilepsy: A retrospective study of 31 Chinese children and literature review

open access: yesFrontiers in Pediatrics, 2023
ObjectiveThe objective of this study was to better understand the clinical features of photosensitive epilepsy (PSE) in Chinese children.MethodsThirty-one children with PSE were screened out of 398 children with epilepsy who were consecutively diagnosed ...
Bo Zhang   +9 more
doaj   +1 more source

EEG Epileptiform Discharges in “Healthy” Children

open access: yesPediatric Neurology Briefs, 2010
Researchers from Helios Klinikum Wuppertal, Germany, analyzed the prevalence of epileptiform discharges in digitally recorded EEG (DEEG) of 382 healthy children (226 male, 156 female) ages 6-13 years, and compared the data to those of previously ...
J Gordon Millichap
doaj   +1 more source

Home - About - Disclaimer - Privacy