NSCI 0817 Lecture Notes - Lecture 1: Posterior Parietal Cortex, Inferior Temporal Gyrus, Optic Chiasm
8 May 2016
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Document Summary
Your eyes are the beginning of the process of visual sensation and can help determine the length, width, depth, and distance of an object. Sensation begins in the eye, while perception does not begin until the stimulus reaches the brain. The optic nerve sends the information to the occipital lobe of the brain for interpretation. Sclera- outer white layer, maintains the shape of the eye, muscles attached to it control eye movements. Cornea- a clear circular area in the sclera that lets light into the eye, aids the lens in the bending of light rays. Pupil- a circular opening in the front of the choroid, most of the light that goes into our eye passes through the pupil. Iris- the colored smooth muscle surrounding the pupil, adjusts the size of the pupil according to the brightness of light (light cannot go through the iris) Chambers are filed with watery fluid that shapes the eyes and helps bend the light rays.
