PSYC 101 Lecture Notes - Lecture 17: Conductive Hearing Loss, Cortical Blindness, Motion Sickness
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PSYC 101 Full Course Notes
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Occipital lobe: all images are upside down and backwards. Damage to the occipital lobe leads to partial or full cortical blindness. The lens is able to invert the image, flipped vertically. Scotomas: a blind spot in one"s field of vision. Blindsight: being able to see, when one is consciously blind (occipital lobe damaged) Damage to a specific region of the brain can affect the ability to perceive colour. Cerebral achromatopsia: cannot process colour because of a brain injury. Cortical processing of colour: activation of area v4 (occipital lobe) Cortical processing of motion: activation of area v5/mt (akinetopsia in occipital cortex) Sound is gathering pressure waves that have different frequencies. Sounds are funneled through the outer ear, into the auditory canal, then into the eardrum. Sounds cause the eardrum to vibrate, and move the ossicles. Depending on the frequency, different hair cells will be activated. When the hair cells bend, a signal is sent to the brain.
