Chapter 5 Part Two Flashcards
Blind Spot
Where the optic nerve leaves the eye
No receptors
Fovea
Point of central focus - cluster of cones
Feature Detectors
Nerve cells that detect specific features such as shape, angle, or movement
Parallel Processing
Simultaneously processing several aspects of a problem or image
Allows us to multitask
Young-Helmholtz Trichromatic (three-color) Theory
Blue, red, green produces every color
Opponent-Process Theory
Opposing colors yellow/blue, white/black, red/green
Color Constancy
Difference in illumination still makes the color constant, but appear different
Audition
Sense or act of hearing
Frequency
Amplitude/loudness
Pitch
High and low sounds
Depends on frequency
Middle Ear
Amplifies sound
Cochlea
Coiled, fluid filled tube, triggers neural impulses
Inner Ear
Transduction of sound
Basilar Membrane
Where cilia are located
Place Theory
Link pitch(high) to place
Frequency Theory
Rate of impulses/matching cochlea/matches frequency in tone(low)
Conduction Hearing Loss
Damage to mechanical system that conducts waves
Sensorineural Hearing Loss
Damage to receptor cells (nerve deafness)
Cochlear implants can help
Cochlear Implant
Device that converts sounds
For sensorineural hearing loss
Gate-Control Theory
Spinal cord blocks pain and allows signals through
McGurk Effect
Auditory component of one sound is paired with the visual component of another sound, leading to the perception of a third sound.
Sensory Interaction
One sense may influence another - smell and taste
Sensory Compensation
When one sense is lost, other senses may be enhanced
Ex) blind musician may have perfect pitch
Kinesthesis
System for sensing position and movement of body parts
