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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Horizontal or vertical perception during exposure to centripetal force, head in various positions
Antecedent visual frame of reference as a factor in the perception of the oculogravic illusion
Conditioned reflex basis of visual spatial perception
Physiological mechanisms involved in visual perception of distance to moving objects
Individual peculiarities in depth perception with object moving away and toward subject
Tactual perception experiments and models
Visual boundary for human perception of vertical rate of descent
Visual perception of color in space exploration - application and instrumentation
Perception of angular acceleration by a pilot in a flight simulator
Contributing factors in perception of oculogravic illusion
Visual perception study of postural vertical in normals and subjects with vestibular defects
Spatial perception as factor in human performance, learning, and work activity
Mechanism of spatial perception and synergetic activity of cerebral hemispheres
Development of spatial perception and spatial concepts in preschool children
Perception of proportions by first grade children during nature drawing
Perception of spatial relations by sixth grade children during field surveying exercises
Perception and representation of shortest distance on plane and on sphere
Role of spatial perception in working at conveyer