Ch 4 Book Notes

Ch 4 Book Notes - Sensation: the stimulation of sense...

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Sensation: the stimulation of sense organs Perception: the selection, organization, and interpretation of sensory input Eyes Window at the front: cornea Cornea and lens form an upside down image of objects on the retina, adjust the focus of image Lens: transparent eye structure that focuses the light rays falling on the retina Nearsightedness: close objects are seen clearly but distant objects appear blurry: focus of light from distant objects falls a little short of the retina (eyeball long) Farsightedness: distant objects are seen clearly but close objects appear blurry because the focus of light from close objects falls behind the retina (eyeball short) Pupil: the opening in the center of the iris that helps regulate the amount of light passing into the rear chamber of the eye Retina: the neural tissue lining the inside back surface of the eye, absorbing light, processing images, and sending visual info to the brain Cones: specialized visual receptors that play a key role in daylight vision and color vision
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Ch 4 Book Notes - Sensation: the stimulation of sense...

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