Lesson 9-10 Quiz

Information from the right visual field is conveyed:

Select one:
a. to the right visual cortex in the occipital lobe
b. to the left visual cortex in the parietal lobe
c. to the right visual cortex in the parietal lobe
d. to the left visual cortex in the occipital lobe

For light waves, amplitude is to ________as wavelength is to ________________

Select one:
a. brightness; intensity
b. brightness; colour
c. colour; brightness
d. colour; intensity

Which of the following is true about colour receptors?

Select one:
a. Any wavelength will stimulate only one or two of the four types of colour receptors
b. Any wavelength will stimulate all three types of colour receptors, but will do so unequally
c. Any wavelength will stimulate only one or two of the three types of colour receptors
d. Any wavelength will stimulate all four types of colour receptors, but will do so unequally

Visual acuity is sharpest when images cast by environmental stimuli fall directly on the fovea because:

Select one:
a. there are fewer bipolar and ganglion cells in the area surrounding the fovea than there are in the area surrounding the retina's periphery
b. each cone synapses directly onto a single ganglion cell and there is a concentration of cones in the fovea
c. the fovea has no blind spot
d. the distance between the retina and the optic nerve is minimized at the fovea

Suppose you stared at a blue balloon, then sifted your eyes to a white surface and saw a yellow afterimage of the balloon. This afterimage would be explained by the fact that retinal neurons that respond most to blue-appearing light ____________, while those that respond to yellow-appearing light ___________.

Select one:
a. continue to respond strongly; add their excitation to that of the “blue” neurons
b. respond subtractively; respond additively
c. continue to respond strongly; respond equally strongly
d. became fatigued; still responded strongly

Which of the following does not contribute to our depth perception?

Select one:
a. retinal disparity (differences between the left and right retinal image)
b. the size of objects
c. occlusion (objects blocking on another)
d. the density of cones at the fovea

Which of the following is TRUE about the visual system?

Select one:
a. Neural convergence does not relate to the size of a cortical cell's receptive field.
b. The light enters the eye and hits the photoreceptor at the surface of the retina; then information is passed through progressively deeper layers of the retina, ultimately to the deepest layer and the optic nerve.
c. Bar-shaped receptive fields in cortex facilitate edge detection, which is a critical step in vision.
d. Lateral inhibition in cortex is an important determiner of perceptual constancy.

Which of the following is TRUE about vision?

Select one:
a. the layer of the retina where the photoreceptors are found is closest to the lens of the eye, and photoreceptors send their information to deeper layers, closer to the back of the retina, where the bipolar and ganglion cells are found.
b. colour vision is the result of the relative firing of the cone receptors.
c. when people see green, it is because there is activity in the 'green' photoreceptors uniquely; other photoreceptor types are not active.
d. most people have three types of photoreceptors.

Phenomena such as blindsight and visual agnosia demonstrate that:

Select one:
a. consciousness and perception are unrelated
b. brain damage does not always cause deficits in perception
c. perceptions can cause behaviour even when we are not aware of them
d. conscious perception is always necessary for behaviour to occur

Visual information is sent via the optic nerve to the __________, which, in turn, sends it to the __________.

Select one:
a. cingulate gyrus; occipital cortex
b. hypothalamus; primary visual cortex
c. thalamus; primary visual cortex
d. limbic system; occipital lobe

The placement of our ears on opposite sides of the head is crucial to our ability to:

Select one:
a. identify the pitch of a sound
b. figure out where a sound is coming from
c. judge how far away a sound is
d. determine how loud a sound is

For sound waves, amplitude is to ____________________ as frequency is to ______________

Select one:
a. loudness; pitch
b. pitch; loudness
c. timbre; pitch
d. loudness; timbre

Which of the following is FALSE:

Select one:
a. Hearing loss can occur with a few exposures to very loud noises (rock concerts)
b. Most hearing loss results from damage to the cilia (hair cells)
c. Outer hair cells deteriorate with age causing hearing loss
d. Hearing loss repairs itself over time as the hair cells regenerate

Our perception of flavour is made up of:

Select one:
a. Sight, smell and taste
b. Sight, sound, smell and taste
c. Smell and taste
d. Taste
Feedback

How can humans recognize over 10,000 different odors when we have only a few hundred types of receptors?

Select one:
a. Many separate odors are combined additively
b. Different odorants stimulate different places in the olfactory mucosa
c. Different odorants attach to different combinations of receptors
d. Different odorants generate different rates of receptor firing
Feedback

For axons involved in anatomical coding of pitch, pitch is signaled by __________ and loudness is signaled by __________.

Select one:
a. the intensity of neuronal firing; how much transmitter substance is released
b. the rate at which neurons fire; which neurons fire
c. which neurons fire; the rate at which neurons fire neurotransmitter substance released into the synapse

The sensory homunculus in primary somatosensory cortex:

Select one:
a. overrepresents some parts of the body and underrepresents others
b. is impervious to change in adult animals, even after extensive training
c. involves one cortical cell per square mm of skin surface
d. has a very large torso, and tiny hands and feet

The receptors for hearing are:

Select one:
a. the basilar and tectorial membranes
b. hair cells on the basilar membrane
c. in the auditory nerve
d. the fluid-filled ducts in the cochlea

Our vestibular sense detects:

Select one:
a. Movement and acceleration
b. Balance and touch
c. Acceleration and balance
d. Pain and balance
Feedback

A complex sound like speech or music causes:

Select one:
a. one specific location on the basilar member to flex, where the location along the basilar membrane depends on fundamental frequency
b. the tip of the basilar membrane to flex intensely
c. many different parts of the basilar membrane to flex simultaneously
d. gentle flexing of the middle portion of the basilar membrane