PSYCH 110 Lecture Notes - Lecture 5: Color Vision, Visual Processing, Retina
3 Feb 2020
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Document Summary
The two hemispheres of the brain can no longer communicate with one another: each hemisphere has its own set of occipital, parietal, temporal, and frontal lobes. So each can process info, but only from certain channels: hemispheres show contralateral organization. Right gets info from the left visual field, left ear, etc. In retinal ganglia: we put visual sensory info together to create(perceive) form and depth and size and motion, hearing, hair cells: auditory sensory receptors translate vibrations to electrical signals. Loudness: depends on the amplitude of the soundwave. Auditory cortex: organized tonotopically, different parts of the auditory cortex specialized to different frequencies. Location: depends on timing and intensity of the sound at each ear: touch. Somatotopic organization, certain parts of the body devoted to certain inputs from locations, so difference in sensitivity. Temperature: independent warm and cold thermoreceptors across the skin, many more warm than cold. Salty, sweet, bitter, sour, umami, and maybe a new one for fat.
