PSY345H5 Lecture Notes - Lecture 9: Visual Impairment, Cerebral Palsy, Visual Acuity
Document Summary
Visual impairment: the inability to hear disconnects people because they cannot talk to one another. Whereas visual impairments disconnects you from seeing things: when we look at language with what people with visual impairments brail for reading. But brail is english characters that are made of available in a tactile manner. (this is not a separate language): therefore, we do not have a culture whereas asl is a culture. Once image is provided to the retina, it has cons and rods that are photo sensitive receptors that fire/don"t fire depending on the stimulation they receive. And this information is taken to the brain: analogy: digital camcorder has lens accommodating to the distance, and has screen in the back which is photo sensitive and organized in pixels. If light shines in the particular field of the camera, and it hits the particular intersection of row and column, then that particular pixel lights up. Prevalence of visual problems: children with severe v. i.
