PSYC 2390 Lecture 5: PSYC2390 Lecture 5

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2390
• Professor: Lana Trick

Document Summary

Neural coding: retinal ganglion go out the back of the eye, they go out the optic nerve. Retinal ganglion come in two types: magno and parvo cells. Parvo cells are little, slow conducting and responsible for colour and pattern, associated with cones. Magno cells are responsible for motion, transient response, type of cell that gets bored quickly which makes it ideal for motion sensing, associated with cones or rods. Magno cells do not respond to colour, only respond to change: tecto-pulivinar system: only magno cells. Multi-modal = coordinates different sensory modalities: geniculostriate system, first stop is the lateral geniculate nucleus, a layered structure. If you hit your head and see flashes of light it"s because the neurons are being pressured and squished which can create an action potential. Striate cortex - primary visual cortex: general description: responsible for conscious perception. 90% of the fibres from the retina go there, both magno and parvo.