PSYCH 2E03 Lecture Notes - Retinitis Pigmentosa, Macular Degeneration, Visual Cortex
13 Jun 2013
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Document Summary
Common diseases that affect the retina retinitis pigmentosa: Rods are destroyed first, then leads to destruction of cones eventually the entire retina. Macular degeneration: fovea and small surrounding area are destroyed. More confined to the neurons as oppose to the receptors. Creates an additional blind spot on retina. Taking advantage of an orderly architecture in the retina in therapeutics retina organized in discrete layers. Electrical stimulation of mammalian retinal ganglion cells with multi- electrode arrays: small electrodes planted on the retina to directly activate the ganglion cells. Multiple electrodes directly stimulate the ganglion cells. Want to have small diameter electrodes can"t make it to small to avoid destroying retina. Implantable miniature telescope remove the lens and implant telescope inside the eye. Organization of visual cortex and cortical receptive fields. Primary visual cortex in in the occipital lobe also called striate cortex.
