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Gravity and the vertical vestibulo-ocular reflex
We studied the vertical vestibulo-ocular reflex (VOR) and vertical visual-vestibular interaction induced by voluntary pitch in the upright and onside...
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Development of methods to analyse transcranial Doppler ultrasound signals recorded in microgravity
During space flights, several clinical syndromes may be the result of changes in cerebral circulation. The purpose of the paper is to describe the...
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Sensory-motor factors triggering the suppression of post-rotary vestibular responses in different gravitoinertial force backgrounds
We studied suppression of oculomotor and perceptual after-responses by post-rotary head movements in high (1.8 G), low (0 G), and normal (1 G)...
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The effects of gravitoinertial force level and head movements on post-rotational nystagmus and illusory after-rotation
The effect of Coriolis, cross-coupled stimulation on the vestibuloocular reflex and the elicitation of motion sickness depends on background...
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Compensation of Cerebellar-Vestibular Lesions and Microgravity
There is evidence that abnormalities in movement coordination and spatial orientation that occur in microgravity are primarily induced by vestibular...
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M.I.T./Canadian vestibular experiments on the Spacelab-1 mission: 4. Space motion sickness: symptoms, stimuli, and predictability
Space sickness symptoms were observed by 4 specially trained observers on Spacelab-1. Three reported persistent symptoms, and vomited repeatedly...
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European vestibular experiments on the Spacelab-1 mission: 1. Overview
During the flight of Spacelab-1 a series of vestibular experiments was performed on the crew by a group of European investigators. Control...
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Mass-discrimination in weightlessness and readaptation to earth's gravity
Five members of the first Spacelab mission (STS-9) were tested on several occasions for weight-discrimination before and after the flight, and for...
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M.I.T./Canadian vestibular experiments on the Spacelab-1 mission: 5. Postural responses following exposure to weightlessness
The four science crewmembers of Spacelab-1 were tested for postural control before and after a 10 day mission in weightlessness. Previous reports...
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European vestibular experiments on the Spacelab-1 mission: 7. Ocular counterrolling measurements pre- and post-flight
The static ocular counterrolling (OCR) of the four scientific crew members in the first Spacelab mission was measured during baseline-data-collection...
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European vestibular experiments on the Spacelab-1 mission: 6. Yaw axis vestibulo-ocular reflex
In two Spacelab-1 crew members the lateral eye movements evoked by active angular oscillation of the head in yaw at 1 Hz were recorded in-flight and...
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European vestibular experiments on the Spacelab-1 mission: 2. Experimental equipment and methods
A series of vestibular experiments were performed in conjunction with the first Spacelab mission, consisting of sets of pre-, in- and postflight...
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Vestibulo-spinal response modification as determined with the H-reflex during the Spacelab-1 flight
Our laboratory at the Johnson Space Center has employed the H-reflex recorded from the soleus muscle as a method of monosynaptic reflex testing in...
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M.I.T./Canadian vestibular experiments on the Spacelab-1 mission: 1. Sensory adaptation to weightlessness and readaptation to one-g: an overview
Experiments on human spatial orientation were conducted on four crewmembers of Space Shuttle Spacelab Mission 1. This introductory paper presents the...
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The contribution of gravitational torques to limb position sense
An experiment is reported which examined whether gravitational torque acting about a joint is used by the CNS in elbow joint angle matching. Subjects...
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Mechanical energy states during running
Changes in total mechanical work and its partitioning into different energy states (kinetic, potential and rotational) during a step cycle of running...
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Biofluidmechanics: Quo vadimus?
After proposing and briefly assessing the domain, objectives and tools of biofluidmechanics—the use of fluid mechanics for the study of biological...
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The Physiology of the Vestibular Nuclei
The experiments of Goltz (1870), Mach (1873), Breuer (1891), Ewald (1892), Bárány (1907) and Steinhausen (1931, 1933) can be considered as a very...
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Zero Gravity Simulation
During the past few years the United States Air Force has been conducting a series of experiments on the effects of weightlessness.* In these series...