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Ecological approach
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.
RELATED TERMS--------------------------------------
Temporal
Having to do with the side of the head.
Retinal
Light-absorbing portion of rhodopsin. The absorption of light causes retinal to change from 11-cis to 11-trans configuration
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External cephalic version
A procedure in which a doctor, using ultrasound images as a guide, attempts to massage a baby out of breech position (feet down) and into a head-down position for delivery.
Eccentricity
Angular distance of a point on the retina from the center of the fovea.
Ecological approach
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
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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