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Hemodynamic responses to photic stimulation in neonates
Pediatric Neurology, 2000A three-channel near-infrared monitoring system was used to evaluate the regional hemodynamic responses to photic stimulation during spontaneous sleep in seven healthy neonates. Three pairs of parallel light guides, separated by 15 mm each, were placed over a 450-mm(2) occipital region of the head.
Y, Hoshi +6 more
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Photic Stimulation and the EEG in Macular Disease
Archives of Ophthalmology, 1964Berger in 1929 discovered what is now known as the a rhythm of the brain. This consists of oscillations of electrical potential at a frequency of 8½ to 12 per second and is best developed in the parieto-occipital region. This rhythm is best demonstrated with the eyes closed, and may be blocked by the subject's attention to vision with the eyes opened ...
J, GRADER, G L, HELLER
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Contribution of intermittent photic stimulation to routine EEG
Neurophysiologie Clinique, 2021Intermittent photic stimulation (IPS) is an activation procedure performed during electroencephalography (EEG) to detect photosensitive patients. This procedure is recommended in routine EEGs but the benefit of IPS in the general population is not clearly ascertained.We retrospectively analyzed 7683 EEGs of patients referred for a routine EEG to the ...
Clément Vialatte de Pémille +7 more
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Photic-stimulation in three species of baboons
Life Sciences, 1967Abstract A high percentage of baboons of the species Papio papio have presented evidence of photomyoclonic epilepsy (2, 3 and 4). Four of the first group of 10 from Senegal (tested in the laboratories of Dr. R. Naquet, C.N.R.S.-I.N.P. 3, Marseille, France) presented characteristic clinical and electroencephalographic signs of the syndrome (2). Later,
E K, Killam, L G, Stark, K F, Killam
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Photic Stimulation, Imagery, and Alpha Rhythm
Journal of Mental Science, 1956Photic stimulation, the exposure of the human eye to repetitive flashes of light, has been employed in recent years in three ways; as a diagnostic, as a therapeutic, and as a research method. In each case, its use has opened new frontiers of inquiry into the borderlands of neurology and psychology.This paper presents certain observations which stem ...
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Photic Stimulation as a Training Aid in Psychotherapy
New England Journal of Medicine, 1957ONE definition of psychotherapy features the learning aspects of that process. For example, it has been said that in psychotherapy the patient partly unlearns some old patterns and learns some fres...
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American Journal of EEG Technology, 1969
(1969). Clinical Photic Stimulation. American Journal of EEG Technology: Vol. 9, No. 1, pp. 10-17.
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(1969). Clinical Photic Stimulation. American Journal of EEG Technology: Vol. 9, No. 1, pp. 10-17.
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EXPERIENCE WITH PHOTIC STIMULATION IN PSYCHIATRIC RESEARCH
American Journal of Psychiatry, 1957Intermittent photic stimulation has been of value in psychiatric research in a number of areas which include: (1) the development of screening techniques based upon the EEG driving response and subjective responses to photic stimulation; (2) correlated studies of photic stimulation with psychological tests; (3) studies relating driving response to ...
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Reversal in photic orientation in Volvox and the nature of photic stimulation
Zeitschrift f�r Vergleichende Physiologie, 19271. Volvox usually is photopositive in low and photonegative in high illumination, but the opposite obtains under certain conditions. 2. If it is dark adapted, it is always positive when exposed to light, no matter how intense, but it soon becomes negative if the light is sufficiently intense and the higher the intensity the shorter the ...
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The application of electro-luminescence to photic stimulation
Electroencephalography and Clinical Neurophysiology, 1966Abstract A new method of photic stimulation is described which uses two electro-luminescent panels mounted in a pair of goggles. When suitably excited by AC, the panels become uniformly illuminated over the whole surface. Flicker is produced by modulating the exciting AC, and a circuit is given for producing square wave modulation of the panel ...
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