PSY 3108 Lecture Notes - Lecture 5: Mechanoreceptor, Proprioception, Focal Dystonia

• School: University of Ottawa
• Department: Psychology
• Course: PSY 3108
• Professor: Charles Collin

Document Summary

There are two zones: inhibitory zone and a excitatory, 1) with a excitatory centre and a inhibitory surround, 2) with an inhibitory centre and a excitatory surround. If entire receptive field is covered, no stimulus. Excitatory section is triggered: more than normal stimuli. Inhibitory section is triggered: less than normal stimuli: receptive fields overlap. Temporal resolution: how often does a give receptor respond to stimuli, determines how precisely one an know when a stimulus happened. Spatial resolution: how any receptors are there across an area of the sense organ, determines (in part) how precisely one can know where a stimulus happened. What is the relationship between receptive field size and spatial resolution: the smaller the receptive fields the better the spatial resolution. Signal goes through: 3a) proprioceptive, 3b) tactile, 1) tactile, 2) tactile and proprioceptive reintegration. Sensory signals are initially processed separately but they are eventually re-joined. The receptive fields in a particular spot go down 6 layers.