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PSL300 Final Exam Questions and Correct
Answers/ Latest Update / Already Graded
wavelength
Ans: distance from one wave peak to the next
trichromats
Ans: humans have 3 cones: red, green and blue
primary colours
Ans: red, green and blue
spectral colours
Ans: evoked by single wavelength
extraspectral colours
Ans: evoked by mix of wavelengths
yellow channel
Ans: ganglion cells excited by red and green cones
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red-green opponent channel
Ans: ganglion cells inhibited by either red/green and excited by
the other
blue-yellow opponent channel
Ans: either excited by blue and inhibited by red and green
(yellow) or the opposite
Daltonsim
Ans: red-green colour blindess; can't distinguish these colours
reflectance of a surface
Ans: its tendency to reflect certain wavelengths of light and
absorb others
colour constancy
Ans: our brains ability to infer the reflectance of a colour
external ear
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Ans: pinna and ear canal, sealed at its end by the tympanic
membrane, or eardrum
middle ear
Ans: air-filled space connected to the pharynx by the
Eustachian tube
inner ear
Ans: conatins the sensors: cochlea for hearing and the
vestibular apparatus for equilibrium
sound
Ans: pressure waves
pitch
Ans: what we perceive frequency as
hertz
Ans: measurement of frequency
All rights reserved © 2025/ 2026 |
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amplitude
Ans: determines perception of loudness
eardrum
Ans: what soundwaves vibrate
chain of small bones (malleus > incus > stapes)
Ans: conveys vibrations through the middle ear
oval window
Ans: membrane between middle and inner ear
ossicles
Ans: 3 smallest bones in the body that make up the chain of
small bones that convey vibrations through the middle ear
cochlea
Ans: contains the receptor cells
vestibular duct and tympanic duct
All rights reserved © 2025/ 2026 |
PSL300 Final Exam Questions and Correct
Answers/ Latest Update / Already Graded
wavelength
Ans: distance from one wave peak to the next
trichromats
Ans: humans have 3 cones: red, green and blue
primary colours
Ans: red, green and blue
spectral colours
Ans: evoked by single wavelength
extraspectral colours
Ans: evoked by mix of wavelengths
yellow channel
Ans: ganglion cells excited by red and green cones
All rights reserved © 2025/ 2026 |
, Page |2
red-green opponent channel
Ans: ganglion cells inhibited by either red/green and excited by
the other
blue-yellow opponent channel
Ans: either excited by blue and inhibited by red and green
(yellow) or the opposite
Daltonsim
Ans: red-green colour blindess; can't distinguish these colours
reflectance of a surface
Ans: its tendency to reflect certain wavelengths of light and
absorb others
colour constancy
Ans: our brains ability to infer the reflectance of a colour
external ear
All rights reserved © 2025/ 2026 |
, Page |3
Ans: pinna and ear canal, sealed at its end by the tympanic
membrane, or eardrum
middle ear
Ans: air-filled space connected to the pharynx by the
Eustachian tube
inner ear
Ans: conatins the sensors: cochlea for hearing and the
vestibular apparatus for equilibrium
sound
Ans: pressure waves
pitch
Ans: what we perceive frequency as
hertz
Ans: measurement of frequency
All rights reserved © 2025/ 2026 |
, Page |4
amplitude
Ans: determines perception of loudness
eardrum
Ans: what soundwaves vibrate
chain of small bones (malleus > incus > stapes)
Ans: conveys vibrations through the middle ear
oval window
Ans: membrane between middle and inner ear
ossicles
Ans: 3 smallest bones in the body that make up the chain of
small bones that convey vibrations through the middle ear
cochlea
Ans: contains the receptor cells
vestibular duct and tympanic duct
All rights reserved © 2025/ 2026 |
