PSY-1200 Lecture Notes - Lecture 5: Peripheral Vision, Cornea, Midbrain
Document Summary
Three basic areas: hind brain: earliest evolutionary development, midbrain: bridge between old and new brain. Memory, traf c control : forebrain: newest evolutionary development, part of brain we usually think of. Specialty areas: amygdala and limbic system: emotions, hippocampus: memory, corpus callosum: connects left and right hemisphere. Cornea, lens, pupil, iris: control incoming light and image: critical stuff in back. Retina: where it is converted to image. Cones: color: optic chiasm: complicated pathway to the back of the brain and optical lobe. Pinna: outer part you see: funnels sound. Eardrum/tympanic membrane: catches vibrations at end of ear canal. Thursday, september 1, 2016: converts pressure uctuations into physical vibrations. Hammer, stirrup, anvil: increases volume 22x by narrowing and focuses the vibrations. Cochlea: coiled, uid lled chamber where transduction occurs. Loudness: determined by the amplitude of the sound wave. Pitch: how high or low a tone sounds. determined by frequency of the wave.
