PSYA01H3 Chapter Notes - Chapter 5: Auditory System, Sensory System, Visual System
Document Summary
Info. of outside world learned detected by sensory organs transmitted to brain via sensory nerves. Sensory systems process differently for diff. sources of info. Visual system (variable) provides stability of head movement, during input. Auditory system, changes = gradual so more processing time. Sensation = detection of basic stimuli traits (i. e. brightness, sweetness) Perception = detection of object location, movement, and their backgrounds: transduction = sense organs convert environ. Receptor cells get info . release transmitter = stimulate o/ neuron: sensory coding. Info from s. organs coded into axon to carry to brain . Anatomical coding: the way nervous s. represent info by diff neurons (location) Primary visual cortex has map for visual field. Temporal coding by rate (time) by neurons intensity: psychophysics: measure relation b/w stimuli + perception. Just-noticeable difference (jnd) weber = change in stimuli magnitude that person can detect.
