photic stimulation

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• Intermittent photic stimulation — In medicine, Intermittent Photic Stimulation, or IPS, is a form of visual stimulation used in conjunction with electroencephalography to investigate anomalous brain activity triggered by specific visual stimuli, such as flashing lights or… …   Wikipedia

• photic — Relating to light. * * * pho·tic fōt ik adj of, relating to, or involving light esp. in relation to organisms <photic stimulation> pho·ti·cal·ly fōt i k(ə )lē adv * * * pho·tic (foґtik) pertaining to light …   Medical dictionary

• stimulation — 1. Arousal of the body or any of its parts or organs to increased functional activity. 2. The condition of being stimulated. 3. In neurophysiology, the application of a stimulus to a responsive structure, such as a nerve or muscle, regardless of… …   Medical dictionary

• driving — The induction of a frequency in the electroencephalogram by sensory stimulation at this frequency. photic d. a normal EEG phenomenon whereby the frequency of the activity recorded over the parieto occipital regions …   Medical dictionary

• Purkinje's colour —    Also known as Purkinje phenomenon, Purkinje hallucination, flicker induced hallucination, and photically induced hallucination. The eponyms Purkinje s colour, Purkinje hallucination, and Purkinje phenomenon refer to the Bohemian physiologist… …   Dictionary of Hallucinations

• diagnosis — /duy euhg noh sis/, n., pl. diagnoses / seez/. 1. Med. a. the process of determining by examination the nature and circumstances of a diseased condition. b. the decision reached from such an examination. Abbr.: Dx 2. Biol. scientific… …   Universalium

• Epilepsy — (seizure disorder): When nerve cells in the brain fire electrical impulses at a rate of up to four times higher than normal, this causes a sort of electrical storm in the brain, known as a seizure. A pattern of repeated seizures is referred to as …   Medical dictionary

• Photosensitive epilepsy — is a form of epilepsy in which seizures are triggered by visual stimuli that form patterns in time or space, such as flashing lights, bold, regular patterns, or regular moving patterns.IncidenceOf all persons who have been diagnosed as epileptic …   Wikipedia

• Electroencephalography — (EEG) is the measurement of electrical activity produced by the brain as recorded from electrodes placed on the scalp.Just as the activity in a computer can be understood on multiple levels, from the activity of individual transistors to the… …   Wikipedia

• IPS — may mean: * Idiopathic postprandial syndrome * In Plain Sight, a television dramedy that currently airs on USA Network * Inches per second, the normal unit for quoting the speed of magnetic tape * Indianapolis Public Schools * Indoor Positioning… …   Wikipedia

• Mediumship — Séance conducted by John Beattie, Bristol, England, 1872 Part of a series of articles on the paranormal Main articles …   Wikipedia