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| This glossary contains: 19186 medical terms |
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Emmert's Law
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Emmert's Law A monocular after-image is located on any surface to which a subject fixates while the after -image is present.x The perceived size of the after-image increases as the perceived distance of the surface increase. Shows that monocular cues may be insufficient to estimate an object's length.
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Ecological approach
Emphasizes the information which may be available in extended spatial and temporal pattern in the optic array to guide the actions of animals and people and to specify events of importance or interest as opposed to considering information just present in the retinal image.
Edge integration
Describes a model of lightness perception in which a region's lightness is computed by integrating over the contrast edges in an image.
Efferent
Heading away. A system's efferent signals are those exiting to elsewhere. (As opposed to Afferent)
Ehrenstein illusion
A series of radial lines create an illusory circle that appears to be brighter than the background.
Eigengrau
German word for 'intrinsic gray'. When both entire retinal images are stabilized, the observer does not perceive black but a non-descript gray fog.
Emmert's Law
Emmetropia
An eye whose image is focused on the retina, rather than in front of behind it. (As opposed to Hyperopia and Myopia).
End-Inhibition
A property of some cells in the visual cortex which respond strongly to either an edge, a bar or a slit which ends within the receptive field.
End-Stopped cell
An orientation selective cell which is also sensitive to the end of a line or edge, responding to short but not long lines or edge stimuli.
Epicapsular stars
Remnants left on the eye of the hyaloid canal, from development in the womb.
Epipolar line
For a given point in space, this is the line on which the point will fall in the opposite eye. This line is tilted out of the horizontal unless the eyes are fixated on a very distant object.
SIMILAR TERMS--------------------------------------
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PREVIOUS AND NEXT TERMS--------------------------------------
Ecological approach
Emphasizes the information which may be available in extended spatial and temporal pattern in the optic array to guide the actions of animals and people and to specify events of importance or interest as opposed to considering information just present in the retinal image.
Edge integration
Describes a model of lightness perception in which a region's lightness is computed by integrating over the contrast edges in an image.
Efferent
Heading away. A system's efferent signals are those exiting to elsewhere. (As opposed to Afferent)
Ehrenstein illusion
A series of radial lines create an illusory circle that appears to be brighter than the background.
Eigengrau
German word for 'intrinsic gray'. When both entire retinal images are stabilized, the observer does not perceive black but a non-descript gray fog.
Emmert's Law
Emmetropia
An eye whose image is focused on the retina, rather than in front of behind it. (As opposed to Hyperopia and Myopia).
End-Inhibition
A property of some cells in the visual cortex which respond strongly to either an edge, a bar or a slit which ends within the receptive field.
End-Stopped cell
An orientation selective cell which is also sensitive to the end of a line or edge, responding to short but not long lines or edge stimuli.
Epicapsular stars
Remnants left on the eye of the hyaloid canal, from development in the womb.
Epipolar line
For a given point in space, this is the line on which the point will fall in the opposite eye. This line is tilted out of the horizontal unless the eyes are fixated on a very distant object.
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This dictionary contains 19186 terms.
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