Scintillating scotomaScintillating scotoma is a common visual aura that was first described by 19th-century physician Hubert Airy (1838–1903). Originating from the brain, it may precede a migraine headache, but can also occur acephalgically (without headache), also known as visual migraine or migraine aura. It is often confused with retinal migraine, which originates in the eyeball or socket. Many variations occur, but scintillating scotoma usually begins as a spot of flickering light near or in the center of the visual field, which prevents vision within the scotoma area.
Dispositif intelligentUn appareil intelligent (aussi appelé dispositif intelligent ; en anglais, smart device) est un appareil électronique, généralement connecté à d'autres appareils ou réseaux via différents protocoles de communication sans fil tels que Bluetooth, Zigbee, NFC, Wi-Fi, LiFi, 5G, etc., qui peut fonctionner dans une certaine mesure de manière interactive et autonome.
Cortical spreading depressionCortical spreading depression (CSD) or spreading depolarization (SD) is a wave of electrophysiological hyperactivity followed by a wave of inhibition. Spreading depolarization describes a phenomenon characterized by the appearance of depolarization waves of the neurons and neuroglia that propagates across the cortex at a velocity of 1.5–9.5 mm/min. CSD can be induced by hypoxic conditions and facilitates neuronal death in energy-compromised tissue.
Human-based computationHuman-based computation (HBC), human-assisted computation, ubiquitous human computing or distributed thinking (by analogy to distributed computing) is a computer science technique in which a machine performs its function by outsourcing certain steps to humans, usually as microwork. This approach uses differences in abilities and alternative costs between humans and computer agents to achieve symbiotic human–computer interaction.
Aura (symptom)An aura is a perceptual disturbance experienced by some with epilepsy or migraine. An epileptic aura is a seizure. Epileptic and migraine auras are due to the involvement of specific areas of the brain, which are those that determine the symptoms of the aura. Therefore, if the visual area is affected, the aura will consist of visual symptoms, while if a sensory one, then sensory symptoms will occur. Epileptic auras are subjective sensory or psychic phenomena due to a focal seizure, i.e.
Maladie de MenièreLa maladie de Menière est une maladie de l’ensemble du labyrinthe membraneux de l'oreille interne, de cause inconnue (affection idiopathique). Elle réalise une entité clinique caractérisée par : la triade symptomatique associant vertiges vrais (sensations rotatoires), acouphènes et surdité, ces deux symptômes étant fluctuants dans le temps ; une lésion endolabyrinthique ; une altération de la circulation labyrinthique aboutissant à une modification de pression des liquides labyrinthiques.
