Results 11 to 20 of about 2,271,907 (274)

Response to photic stimulation as a measure of cortical excitability in epilepsy patients [PDF]

open access: greenbioRxiv, 2023
Studying states and state transitions in the brain is challenging due to nonlinear, complex dynamics. In this research, we analyse the brain’s response to non-invasive perturbations.
Michaela Vranic‐Peters   +7 more
openalex   +2 more sources

Temporal Onset Focal Seizures Induced by Intermittent Photic Stimulation [PDF]

open access: yesFrontiers in Neurology, 2021
The study aimed to review the clinical, radiological, and pathological findings and electroencephalogram (EEG) of pediatric epilepsy patients with temporal onset focal seizures induced by intermittent photic stimulation (IPS). Four patients with temporal
Yue Niu   +4 more
doaj   +2 more sources

Brain Dynamics Altered by Photic Stimulation in Patients with Alzheimer’s Disease and Mild Cognitive Impairment [PDF]

open access: yesEntropy, 2021
Individuals with mild cognitive impairment (MCI) are at high risk of developing Alzheimer’s disease (AD). Repetitive photic stimulation (PS) is commonly used in routine electroencephalogram (EEG) examinations for rapid assessment of perceptual ...
Wei-Yang Yu   +4 more
doaj   +2 more sources

Biometric Authentication from Photic Stimulated EEG Records [PDF]

open access: bronzeApplied Artificial Intelligence, 2021
Studies on brain biometrics have shown that electroencephalogram (EEG) signals encourage more secure authentication. The uniqueness, persistence, universality and robustness of EEG signals against fraud attacks offer potential for highly secure biometric
Ömer Kasim, Mustafa Tosun
doaj   +2 more sources

Does visual cortex lactate increase following photic stimulation in migraine without aura patients? A functional 1H-MRS study [PDF]

open access: goldThe Journal of Headache and Pain, 2011
Proton magnetic resonance spectroscopy (1H-MRS) has been used in a number of studies to assess noninvasively the temporal changes of lactate (Lac) in the activated human brain.
Harmen Reyngoudt   +6 more
openalex   +2 more sources

PHOTIC STIMULATION AND LEG MOVEMENTS IN THE CRAYFISH [PDF]

open access: bronzeJournal 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 ...
Benjamin Kropp, E. V. Enzmann
openalex   +5 more sources

PMS, EEG, and Photic Stimulation [PDF]

open access: bronzeJournal of Neurotherapy, 1997
Abstract Two studies of premenstrual syndrome (PMS), EEG, and photic stimulation have recently been completed at the Royal Postgraduate Medical School, Hammersmith Hospital, London (UK). In a preliminary trial of photic stimulation as a treatment for PMS, seventeen women with PMS were treated with a take-home flashing light device for 15 to 20 minutes ...
David Noton
openalex   +4 more sources

Ictus Emeticus Induced by Photic Stimulation

open access: yesPediatric Neurology Briefs, 1994
Occipitotemporal seizures induced by intermittent photic stimulation in three children with brain injuries, aged 10 to 13 years, are reported from the Institute of Developmental Neuropsychiatry, University of Pisa, Italy.
J Gordon Millichap
doaj   +4 more sources

Photoparoxysmal responses [PDF]

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   +3 more sources

Uniform decrease of alpha-global field power induced by intermittent photic stimulation of healthy subjects [PDF]

open access: goldBrazilian Journal of Medical and Biological Research, 2002
Nineteen-channel EEGs were recorded from the scalp surface of 30 healthy subjects (16 males and 14 females, mean age: 34 years, SD: 11.7 years) at rest and under trains of intermittent photic stimulation (IPS) at rates of 5, 10 and 20 Hz.
Rau R., Raschka C., Koch H.J.
doaj   +2 more sources

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