TEMPERATURE CHANGES OF HUMAN CORNEA AND TEARS UNDER A CONTACT LENS. I. THE RELAXED OPEN EYE, AND THE NATURAL AND FORCED CLOSED EYE CONDITIONS.
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Biomedical subjects
Publications and source records attributed to R M HILL.
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Oxygen flux across the anterior surface of the human cornea from a closed reservoir of air-saturated, physiological, isotonic saline was measured in vivo as a function of time. The rate of oxygen consumption calculated from this flux compares favorably with estimates given in the literalure, which were based on studies in which the microrespirometer technique of Warburg was used.
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Among the ganglion cells in the rabbit's retina there is a class that responds to movement of a stimulus in one direction, and does not respond to movement in the opposite direction. The same directional selectivity holds over the whole receptive field of one such cell, but the selected direction differs in different cells. The discharge is almost uninfluenced by the intensity of the stimulus spot, and the response occurs for the same direction of movement when a black spot is substituted for a light spot.
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