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sensory illusions in aviation
Because human senses are adapted for use on the ground, navigating by sensory input alone during flight can be dangerous: sensory input does not always accurately reflect the movement of the aircraft, causing sensory illusions. These illusions can be extremely dangerous for pilots.
==Vestibular system==
The vestibular system consists of the otolith organs and the semicircular canals. Illusions in aviation are caused when the brain cannot reconcile the vestibular and visual inputs. The semicircular canals, of which there are three recognizing accelerations in pitch, yaw, and roll, are stimulated by angular accelerations; the otolith organs, the saccule and utricle, are stimulated by linear accelerations. Stimulation of the semicircular canals occurs when movement of the endolymph inside the canals causes movement of the crista ampullaris and the hair cells within them. Stimulation of the otolith organs occurs when gravitational forces or linear accelerations cause movement of the otolith membrane, the otoliths, and the hair cells of the macula.
Somatogyral illusions occur as a result of angular accelerations stimulating the semicircular canals. Somatogravic illusions, on the other hand, occur as a result of linear accelerations stimulating the otolith organs.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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