PSY290H5 Study Guide - Final Guide: Grey Matter, Cerebellum, Inferior Colliculus
Document Summary
Neuron cell converts one kind of signal into another. Take information from environment & change it into a neural signal. Don"t measure energy, rather encode relative intensities. Sensory receptors don"t measure anything in absolute measurements. If responded in absolute, would reach a maximum level. Progressive loss of receptor sensitivity as stimulation is maintained. Allows sensory responses to come back down overtime (fade) Respond over a huge range of intensities. Auditory system: sensitive from pin drop to very loud noises. Action potentials are limited - can"t communicate with only one kind of sensory neuron. Some cones sensitive to b, others g, r. Take in information from receptors, is sent to thalamic relay nuclei, primary and secondary sensory cortex, then to association cortex. Describe why nmda receptor is key part of learning at a synapse. Challenges details about nmda receptor what happens when calcium enters a cell, what changes does it create why relevant for learning and memory.
