UNIT 3 LESSON 1 Flashcards
Sensation- Vision and Audition
pulses of electromagnetic energy (light) received through the cornea, then the pupil, then the lens which focuses the light on the retina
Vision
responsible for fine detail and color
Cones
in the center of the retina
fovea
responsible for peripheral vision and are more sensitive to
light, giving us better vision in low-light situations
Rods
relay information on shape, edges, angles, etc. and allow
us to recognize familiar faces and shapes from various angles, colors, etc.
Feature receptors
the recognition of things from different angles and colors
perceptual constancy
processing of all these factors (speed, distance, texture, color, etc.) simultaneously
parallel processing
light energy is converted to neurochemical energy
transduction
cones perceives color through combinations of mixing red/green/blue receptors
Trichromatic theory
proposes that some receptors eliminate opposing colors that share the same pathway
opponent process theory
a process by which sounds waves enter the ‘outer ear’ through the auditory canal to the eardrum
Hearing
(the height of an energy wave—in this case sound wave)
amplitudes
unit of which sound is measured in
decibels
the quality of a sound governed by the rate of vibrations producing it
pitch
the theory that certain hairs are only activated by certain frequencies
Place theory
