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Rhodopsin
Rhodopsin The visual pigment in rod cells. Contains opsin and retinal.
RELATED TERMS--------------------------------------
Opsin
Protein portion of rhodopsin.
Retinal
Light-absorbing portion of rhodopsin. The absorption of light causes retinal to change from 11-cis to 11-trans configuration
SIMILAR TERMS--------------------------------------
Rhoda Reid Hospital
The Rhoda Reid Hospital is a hospital in Waikato, New Zealand.
Rhode Island Hospital
Rhode Island Hospital is a hospital in Providence, Rhode Island (USA).
PREVIOUS AND NEXT TERMS--------------------------------------
Retinal
Light-absorbing portion of rhodopsin. The absorption of light causes retinal to change from 11-cis to 11-trans configuration
Retinal layers
Retinal layers are: Outer nuclear layer - Contains photoreceptors; Inner nuclear layer - Contains bipolar, horizontal and amacrine cells; Ganglion cell layer - Contains ganglion cells; Outer plexiform layer - Contains processes of receptor, bipolar and horizontal cells; Inner plexiform layer - Contains processes of bipolar, amacrine and ganglion cells.
Retinex Theory
Theory of lightness and color perception. Argues that the color of an object is not determined by the composition of the light coming from the object. The color of a unit area is determined by a trio of numbers each computed on a single waveband to give the relationship for the waveband between the unit area and the rest of the unit areas in a visual scene.
Retinotectal pathway
Pathway from the retina to superior colliculi.
Retinotopic map
A preservation of the spatial relationships of the photoreceptors in the retina in a higher brain representation.
Rhodopsin
Right visual hemifield
The right half of the visual field, projects on the nasal hemiretina of the right eye and on the temporal hemiretina of the left eye.
Rivalry
When two different images are presented to the two eyes simulataneously, a mosaic-like percept can be obtained, in which different regions of the image correspond to left and right eye images.
Rod
Photoreceptor for dim light conditions. Achromatic, lower acuity and temporal resolution than cones, outnumber cones 20 to 1. Rod system is convergent (many rods target one bipolar cell). See also Cone.
Reniform
Shaped like a kidney.
Resilient
Having the ability to return to an original shape after having been compressed or deformed.
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