UCSD Psych 106 Exam Questions & Answers 2024/2025
contralateral - ANSWERSon the opposite side
ipsilateral - ANSWERSon the same side
photons - ANSWERS- particles of energy
- emitted from atoms that travel through space as a wave
electromagnetic spectrum - ANSWERSrange of all electroma...
- emitted from atoms that travel through space as a wave
electromagnetic spectrum - ANSWERSrange of all electromagnetic radiation
visual light - ANSWERSthe portion of the electromagnetic spectrum that is visible to humans (390-
750nm)
receptive fields - ANSWERSthe area of the visual field that when lit with light AFFECTS (changes the
activity level of) the neuron under study
orientation tuning - ANSWERSdifferent parts of visual cortex process different aspects of visual stimulus
refraction - ANSWERSresponsible for image formation by lenses and the eye
5 major parts of the eye - ANSWERS1. iris
2. pupil
3. retina
4. cornea
5. lens
, cornea - ANSWERStransparent layer forming the front of the eye
iris - ANSWERS- colored area
- muscle that surrounds pupil
lens - ANSWERSresponsible for creating a sharp, focused image for the back of the eye
retina - ANSWERS- a layer in the back of the eyeball
- contains neurons that are sensitive to light and trigger impulses that pass via the optic nerve to the
brain
3 types of neurons in the retina - ANSWERS1. photoreceptors
2. bipolar cells
3. (retinal) ganglion cells
2 types of photoreceptors - ANSWERS1. rods
2. cones
- both have graded potential
- located in the back of the eye
rods - ANSWERS- involved in night vision
- operate at LOW light levels
- very sensitive to just a few rays of light
- not functional at high levels of light
- absent in fovea
why aren't rods involved in color vision? - ANSWERSrods only have one sensitivity, therefore cannot have
a role in seeing multiple colors
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