PSY100H1 Lecture Notes - Spatial Memory, Semantic Memory, Episodic Memory
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PSY100H1 Full Course Notes
Verified Note
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Document Summary
Sensation and perception: sensation: involves the detection of external stimuli, responses to those stimuli and the transmission of these responses to the brain. Sensation first, perception second: everything is experienced in the brain. Context and change are important: transduction: process by which sensory receptors pass impulses to connecting neurons when they receive stimulation. Sensing chemicals: taste and smell: the stimuli for taste are chemical substances from food, taste receptors, found in taste buds, send signals to the brain where they then produce the experience of taste. If the gate is open- pain is experienced. If the gate is closed- pain is reduced or prevented. About 120 million in each retina, located along the edges: cones: retinal cells that respond to higher levels of light, and result in colour perception. About 6 million in each retina, located in the fovea: visual transmission: rods and cones- bipolar, amacrine, horizontal cells, ganglion cells/optic nerve- thalamus- primary visual cortex either the dorsal.
