PSYCH 10 Lecture Notes - Lecture 6: Opponent Process, Interposition, Phi Phenomenon
Document Summary
Light passes through cornea and pupil, focused and inverted by lens. Lands on retina transduction neural impulses to optic nerves (bundles of axons) Lens not rigid; can accommodate by changing shape to focus on near/far objects. The retina light entering eye triggers photochemical reaction in rods and cones at back of retina. Bipolar cells activate ganglion cells, axons which become the optic nerve. Nerve sends info to visual cortex via hypothalamus in brain. Area of missing info in field of vision. No receptor cells where optic nerve leaves eye. Highest resolution if image focused on fovea. Horizontal cells: detect edges and exaggerates them. Takes away info from neighboring cells illusion. Able to see where things start and end. Images we see are made by neural signals (can even be produced by pressure on eyeball. 70% of the time will press button correctly. Ganglion cells send signals to visual cortex in response to features.
