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Each of our _____ has specialized receptors that are sensitive to a particular kind of energy .
Senses
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To transduce "Convert" energy is...
Transduction
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Receptors ______ energy.
Transduce
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Light enters the eye through an opening in the center of the iris called the...
pupil
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The pupil is focused by the lens (adjustable) and the cornea (not adjustable) and projected into the...
Retina
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The retina is the rear surface of the eye, which is lined with ______ receptors.
Visual
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In the vertebrate retina, messages go from receptors to the back of the eye to _______ cells, located closer to the CENTER of the EYE.
Bipolar
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The bipolar cells send their message to the ______ cells, located still closer to the center of the eye.
Ganglion
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The retina has 3 layers:
- Ganglia Cells
- Bipolar Cells
- Receptor Cells
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What is the nerve that carries info from the EYE to the BRAIN?
Optic Nerve
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Vision : Audtion :: Optic Nerve :: _______ _____
Auditory Nerve
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This controls the ability of the ganglion cells to respond to shapes, movements, or other visual stimuli.
Amacrine Cells
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The point at which the ganglion cells leaves (also where the blood vessels enter and leave) is the ______ ______ because it has NO receptors.
Blind Spot
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Blind spot does not have ______ cells or process and information.
Receptor
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_____ abundant near the fovea, less active in DIM light, more USEFUL in bright light, and essential for color vision.
Cones
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Which are abundant in the periphery of the human retina, respond to FAINT light (White Light) but are not useful in daylight bc bright light bleaches them.
Rods
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1 Cone = 1 Ganglian =
Detailed Vision
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1 Rod = Many Ganglian =
Not Detailed Vision
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Rods & Cones have ________ that release energy when struck by light.
Photopigments
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The perception of color is
Wavelength of Light
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Trichomatic Theory by Young-Helmholtz has 3 types of cones:
- Short Wavelength
- Medium Wavelength
- Long Wavelength
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In the thalamus region of the brain is the Lateral _______.
Geniculate
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3 Types of Ganglion Cells:
- Parvocellular
- Magnocellular
- Koniocellular
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Type of Ganglion Cell that is near the fovea, a lot of cones result in color:
"sensitive to cones - color vision"
Parvocellular
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Type of Ganglion Cell that is near the retina and has large cell bodies:
"moving functions"
Magnocellular
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Type of Ganglion Cells that is near the retina and has small cell bodies:
Koniocellular
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3 Types of Cells in the Visual Cortex
- Simple
- Complex
- Hyper Complex
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The type of Cell in the visual cortex that has a fixed zone:
Simple Cell
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The type of Cell in the visual cortex that do not respond to the exact location of a stimulus (not fixed zone). It is located in the V1 & V2 (Visual Cortex):
Complex Cell
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The type of Cell in the visual cortex that resemble complex cells with one exception; an end-stopped cell has a strong inhibitory area at one end of its bar-shaped receptive field (AKA End-Stopped cell):
HyperComplex Cell
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When Experiences have a particularly strong and enduring influence:
Sensitive Period
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When eyes do not point in the same direction, also called "lazy eye" is:
Strabismus
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This stream is the "what" pathway bc it specialize for identifying and recognizing objects:
"Temporal"
Ventral
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This stream is the "where" pathway bc it helps the motor system locate objects:
"Parietal"
Dorsal
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"visual lack of knowledge"
Results from damage in the temporal cortex
Visual Agnosia
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