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On-Center cells
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On-Center cells Increase their activity when light increments are presented in their receptive files. Surrounded by an antagonistic region which responds with the opposite polarity. Both ganglion and bipolar cells are separated into two classes, on-center and off-center. The on-center cells have dendrites that branch in the inner portion of the inner plexiform layer. See also Off-Center Cells.
RELATED TERMS--------------------------------------
Ganglion
A cluster of nerve cells.
SIMILAR TERMS--------------------------------------
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Otitis media
The most common reason sick infants visit the doctor, otitis media (earinfection) is caused by bacteria breeding in excess fluid in the middle ear. Most ear infections begin during or shortly after an infant has a cold.
Otolaryngologist
A physician who specializes in the treatment of the ears, nose, and throat.
Object centered coordinate system
A structural description of an object independent of viewpoint.
Ocellus
Eye-Cup. A patch of light-sensitive receptor cells sunk into the skin present in some species.
Ocular dominance columns
The primary visual cortex (V1) is organized into alternating columns sensitive to input from the left and right eyes.
On-Center cells
Off-Center cells
Decrease their activity when light increments are presented in their receptive fields. Surrounded by an antagonistic region which responds with the opposite polarity. Both ganglion and bipolar cells are separated into two classes, on-center and off-center. The off-center cells have dendrites that branch in the outer portion of the inner plexiform layer. See also On-Center Cells.
Opsin
Protein portion of rhodopsin.
Opthalmoscope
Device for seeing light reflected from the interior of the eye. First built by Hermann von Helmholtz.
Optic chiasm
Location where the optic nerve axons from the two retinae join and are reorganized into two separate groups (the optic tracts) that encode information about the right and left visual fields.
Optic disk
Where the ganglion cell axon fibers leave the retina. Contains no photoreceptors and therefore creates a blind spot in the visual field.
RELATED TERMS--------------------------------------
Ganglion
A cluster of nerve cells.
SIMILAR TERMS--------------------------------------
PREVIOUS AND NEXT TERMS--------------------------------------
Otitis media
The most common reason sick infants visit the doctor, otitis media (earinfection) is caused by bacteria breeding in excess fluid in the middle ear. Most ear infections begin during or shortly after an infant has a cold.
Otolaryngologist
A physician who specializes in the treatment of the ears, nose, and throat.
Object centered coordinate system
A structural description of an object independent of viewpoint.
Ocellus
Eye-Cup. A patch of light-sensitive receptor cells sunk into the skin present in some species.
Ocular dominance columns
The primary visual cortex (V1) is organized into alternating columns sensitive to input from the left and right eyes.
On-Center cells
Off-Center cells
Decrease their activity when light increments are presented in their receptive fields. Surrounded by an antagonistic region which responds with the opposite polarity. Both ganglion and bipolar cells are separated into two classes, on-center and off-center. The off-center cells have dendrites that branch in the outer portion of the inner plexiform layer. See also On-Center Cells.
Opsin
Protein portion of rhodopsin.
Opthalmoscope
Device for seeing light reflected from the interior of the eye. First built by Hermann von Helmholtz.
Optic chiasm
Location where the optic nerve axons from the two retinae join and are reorganized into two separate groups (the optic tracts) that encode information about the right and left visual fields.
Optic disk
Where the ganglion cell axon fibers leave the retina. Contains no photoreceptors and therefore creates a blind spot in the visual field.
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This dictionary contains 19186 terms.
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