Psychology 2220A/B Study Guide - Inferior Temporal Gyrus, Visual Agnosia, Temporal Lobe
8 Apr 2014
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Chapter 6 the visual system: how we see. Light enters eye retina at back of eye. Light: photons (discrete particles travelling through space very fast, waves of electromagnetic radiation. Infrared waves too long for humans to see. Some light absorbed, some reflected: reflected light (distal stimulus) Light is bent as it passes through lens. Image is inverted and projected to back of eye onto retina and is the proximal stimulus. Visual field: area you can see in front of you without moving your head. Pupil: where light enters: size is regulated by iris (which gives us our eye colour) Lens fattens to bend light rays: causes more strain on the lens, to reduce strain, eye gradually elongates, can cause distant objects to appear blurred, myopia = nearsighted. Prevention of myopia: read in adequate lighting, avoid small font (lol) Convergence: eyes must turn slightly inward when objects are close so they can be focused on: greatest when inspecting things close upa.
