How Does Vision Work?
Unit 3. Sensation and Perception
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Topics of this game:
- The adjustable opening in the center of the eye through which light enters
- A ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening
- The transparent structure behind the pupil that changes shape to help focus images on the retina
- The light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual info.
- Retinal receptors that detect black, white and gray: necessary for peripheral and twilight vision, when cones don't respond
- Retinal receptor ells that are concentrated near the center of the retina and that function in daylight or in well-lit conditions. Detect fine detail
- The center focal point in the retina, around which the eye's cones cluster
- A type of neuron which has two extensions. Specialized sensory neurons for the transmission of special senses. Part of the retina.
- Type of neuron located near the inner surface of the retina of the eye. Conveys information from other retinal neurons to the rest of the brain
- The nerve that carries neural impulses from the eye to the brain
- The point at which the optic nerve leaves the eye, creating a "blind" spot because no receptor cells are located there
- X'shaped structure formed by the crossing of the optic nerves in the brain
- Nerve cells in the brain that respond to specific features of the stimulus, such as shape, angle, or movement
- The process by which the eye's lens changes shape to focus near or far objects on the retina
- Protects the eye and bends light to provide focus
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