PSYA01H3 Study Guide - Postcentral Gyrus, Receiver Operating Characteristic, Gustav Fechner

66 views23 pages
School
Department
Course

Document Summary

Sensation: detection of simple properties of stimuli such as brightness, colour, warmth, sweetness. Perception: detection of objects, their locations, their movements and backgrounds. Perceptions dependant on learning, sensations involve innate, no clear boundary between the two. Only sense receptors brain processes detect things like temperature, salt concentration of blood, and these receptors can"t inform it about what is going on outside (outside info gathered by sense organs outside the brain) Detected stimuli by sense organs transmitted to brain through neural impulse, task of sense organs to transmit signals to brain that are coded to represent faithfully the events that have occurred in environment, brain analyzes and reconstructs. Transduction: process by which sense organs convert energy from environmental events into neural activity. In most senses specialized neurons, receptor cells, release chemical transmitter substances that stimulate other neurons altering rate of firing. In somatosenses dendrites of neurons respond directly to physical stimuli without receptor cells.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers

Related Documents