Perception of tilt (somatogravic illusion) in response to sustained linear acceleration during space flight

• Published in: Experimental brain research Vol. 138; no. 4; pp. 410 - 418
• Main Authors: Clement, G., Moore, S. T., Raphan, T., Cohen, B.
• Format: Journal Article
• Language: English
• Published: Legacy CDMS Springer 01.06.2001; Springer Nature B.V
• Subjects: Acceleration - adverse effects; Adaptation, Physiological - physiology; Aerospace Medicine; Applied physiology; Biological and medical sciences; Centrifugation; Centrifugation - adverse effects; Centrifuges; Ear; Frequency; Gravity Sensing - physiology; Head Movements - physiology; Human physiology applied to population studies and life conditions. Human ecophysiology; Humans; Illusions - physiology; Medical sciences; Microgravity; Models, Neurological; Orientation - physiology; Otoliths; Perception; Perceptions; Posture - physiology; Rotation - adverse effects; Sensation; Space Flight; Space Motion Sickness - physiopathology; Space Perception - physiology; Translation; Transports. Aerospace. Diving. Altitude; Vestibular system; Vestibule, Labyrinth - physiology; Weightlessness; Weightlessness - adverse effects; Support, Non-U.s. Gov't; Non-Nasa Center; Nasa Discipline Neuroscience; Illusions/physiology; Posture/physiology; Short Duration; Sts-90 Shuttle Project; Vestibule/physiology; Adaptation, Physiological/physiology; Gravity Perception/physiology; Nasa Experiment Number 9301047; Orientation/physiology; Support, U.s. Gov't, Non-P.h.s; Human; Space Perception/physiology; Acceleration/adverse Effects; Space Motion Sickness/physiopathology; Centrifugation/adverse Effects; Head Movements/physiology; Space Flight; Weightlessness/adverse Effects; Flight Experiment; Rotation/adverse Effects; Models, Neurological; Manned; Astronaut; Linear acceleration; Otolith; Centrifugation; Sensorial perception; Tilt; Vestibular system; Weightlessness; Space flight; Microgravity; Gravity; NASA Discipline Neuroscience; NASA Experiment Number 9301047; Non-NASA Center

During the 1998 Neurolab mission (STS-90), four astronauts were exposed to interaural and head vertical (dorsoventral) linear accelerations of 0.5 g and 1 g during constant velocity rotation on a centrifuge, both on Earth and during orbital space flight. Subjects were oriented either left-ear-out or...