Eye, ear Flashcards
Trichromatic theory
THe retina contains 3 types of color receptors, and their combination allows us to eprcieve the full colro spectrum
Opponent process theory
Certain cells int he rbaina re sitmualted by some colros and inhibited by others helping to explaina fterimages
Color vision deficienes
- Dichromatism (2 types of cones) and Monochromatism (only one type of cone or none) leading to color blindness
Theories of pitch detection
place, frequency theory, volley principle,
4 primary odors
acid, burnt, fragrant, caprylic
olfactroy
smell
Color vision theories
trichromatic, opponent-process, color vison
cornea
bends light to provide focus
pupil
small adjustabel opening
iris
dilates/constricts in response to lifht intesity- effects hwo much light enters
Light is made up of different ____ and each ______ coressponds to a different _____
wavelength, wavelenght, hue
hue
color
transparent lens
focuses the light rays into an image on your retina by changing shape
retina
where rods and cones are
rods
detect lights and white/blac ocloring, perimeter
cones
color, center of the retina
Larger ___ of the eye light waves cause brighter light
amplitude
Retina
transfers the particles fo light into electrical signals
Optic nerve
processes the electrical signal, and forwarded to the visual cortex
Larger sound amplitude produces _________ ________.
louder sounds
Smaller sound amplitude produces more ______ _______.
softer sounds
sound wavelength affect the ____ we hear
pitch
shorter sound wavelengths are percieved as ______ ptiched.
high
larger sound wavelenghts are percieved as ______ pitched.
lower
Sight process
1) light enters through cornea
2) passes through puil
3) hits transparent lens
4) hits the retina
5) cines and rods
6) electrical signal
7) optic nerve
Sound process
1) eardrum
2) bones of middle ear and amplify and relay the eardrum vibration to fluid cochlea.
3) he malleus, anvil and stirrup picks up the vibrations of the sound and transmits them to the cochlea
4) The vibrations cause the cochlea’s membrane-covered opening to vibrate, jostling fluid inside the cochlea.
5)The hair cell movements in turn trigger impulses in the adjacent nerve cells; who form the auditory nerve
6) The auditory nerve carries the neural messages to your thalamus and then on to the auditory cortex.
