Results 141 to 150 of about 3,425 (195)
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The treatment of congenital idiopathic nystagmus by intermittent photic stimulation
Ophthalmic and Physiological Optics, 1983Abstract An analysis is presented of the results obtained by treating 54 patients with congenital nystagmus using intermittent photic stimulation. The major beneficial effect has been to improve the visual acuity, though the nystagmus itself is sometimes reduced in amplitude or even eliminated; an unexpected bonus, in certain cases, is the improvement ...
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Techniques of Intermittent Photic Stimulation and Paroxysmal Responses
American Journal of EEG Technology, 1989Visual stimuli of flickering geometric pattern and red flicker are generally very potent stimuli in triggering paroxysmal responses irrespective of using light stimulation with very low intensity, ...
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Maturational changes of 5 Hz SSVEPs elicited by intermittent photic stimulation
International Journal of Psychophysiology, 2010We investigated the development of the magnitude and phase alignment of steady-state visual evoked potentials induced by 5 Hz intermittent photic stimulation in 46 children (3 to 16 years) and 8 adults, as a function of age. We found that, over the occipital region, magnitude values were the highest in 8-11-year old children, but decreased with age ...
Ala, Birca +10 more
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Discrimination of intermittent photic stimulation in normal and brain-damaged cats
Experimental Neurology, 1963Abstract Cats were trained to discriminate between a flickering and a steady light and then were subjected to ablation of varying amounts of the visual cortex. The original learning curves consisted of a period of rapid learning of increased frequency of flicker, then a more or less pronounced plateau followed by a second period of more rapid ...
C L, TARAVELLA, G, CLARK
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The effect of background illumination on sensitivity to intermittent photic stimulation
Electroencephalography and Clinical Neurophysiology, 1980Sensitivity to intermittent photic stimulation (IPS) was tested in 23 photosensitive epileptic subjects under conditions of normal and reduced ambient lighting. Darkening the room to 20 lux did not increase either the incidence of photosensitivity or the effective range of flash frequencies.
P, Van Egmond +2 more
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Alteration of motor cortex excitability in response to intermittent photic stimulation
Clinical Neurophysiology, 2000To measure the duration of cortical silent period (C-SP) in response to different frequencies of intermittent photic stimulation (IPS).Ten normal volunteers without a history of seizures were studied. First, using a magnetic stimulator we determined the resting motor threshold (RMT).
M, Entezari-Taher, A C, Dean
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Facilitatory Effects of Intermittent Photic Stimulation on Visual Cortical Kindling
Epilepsia, 1982Summary: There are few reports on kindling preparation by daily electrical stimulation to the primary visual cortex. In our previous studies on cats, it was demonstrated that repeated stimulation to the primary visual cortex brought a similar progress in seizure development as in amygdaloid kindling, although it took more trials.
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Interaction between Intermittent Photic Stimulation and Auditory Stimulation on the Human EEG
Neuropsychobiology, 1979The effects of flicker photic stimulation (6, 8, 9, 10, 11, 12, 14, 16 flashes/sec) and of white noise (80 dB SPL) on the EEG of man were investigated with the aid of power spectral analysis.
P. San Martini +3 more
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Nystagmus induced by intermittent photic stimulation (flash induced nystagmus (FIN))
Documenta Ophthalmologica, 1977In man, as has been shown previously in rabbits and monkeys, a nystagmus can be elicited by monocular intermittent photic stimulation. The direction of nystagmus (FIN) is always towards the stimulated eye. This nystagmus strongly resembles latent nystagmus. Here the fast phase is always directed towards the 'non-occluded' eye.
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[Headache and response to intermittent photic stimulation].
Rivista di neurologia, 1983It has been studied the answer to the LSI in migraine subjects (166) and with tension headache (198). Only in tree cases, which on migraine and two with tension headache, the answer given is anomalous to the LSI, with a frequency like those found in "normal" population.
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