PSYC 100 Chapter Notes -Habituation, Prefrontal Cortex, Ossicles

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Rana Pishva

Document Summary

Sensation: the process by which sensory systems gather information about the environment. Turn chemical, mechanical, and light energy into electrical signals in the brain. Perception: the selection, organization, and interpretation of sensations. Perception of objects in three dimensions, at varied distances, multitude of colours and textures. Sensing with the taste buds: olfaction. Receptor cells: specialized neurons that transduce physical energy into electrical signals. Adequate stimulus: type of physical energy to which a sensory receptor is especially tuned. Place (labeled- line) code: neurons in different places in the body signal different qualitative features. Population (pattern) code: information is conveyed across a whole population of nerve cells. Temporal code: psychologically important information is coded in the firing rate of neurons (quickly or slowly) A change in sensitivity; occurs when sensory system is repeatedly stimulated in the same way. Reduces data that needs to be processed without actually reducing the amount of information very much.