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American Journal of EEG Technology, 1974
This contribution on photic stimulation is an attempt to stress its clinical value. The efficiency of photic stimulation is very poor if it is used to serve one purpose only, that is, testing a patient's photo convulsive threshold. Photic stimulation can be a much more powerful aid because driving responses make a positive contribution towards a better
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This contribution on photic stimulation is an attempt to stress its clinical value. The efficiency of photic stimulation is very poor if it is used to serve one purpose only, that is, testing a patient's photo convulsive threshold. Photic stimulation can be a much more powerful aid because driving responses make a positive contribution towards a better
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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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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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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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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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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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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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Responses to photic stimulation in patients with occipital spikes
Electroencephalography and Clinical Neurophysiology, 1998To determine the effect of intermittent photic stimulation (IPS) and frequency of asymmetric driving responses in patients with occipital spikes.The amplitude of the driving response at 4 flash frequencies was measured from a referential montage in 60 patients with occipital spikes and in 60 normal EEG records from age-matched patients.
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