sensation and perception test bank
3
1. Hartline et al. (1956) selected the Limulus to demonstrate
lateral inhibition because _____.
a. it was possible to illuminate a single receptor without illuminating its
adjacent receptor
b. it was readily available to him and was extremely easy to breed in the lab
c. the Limulus eye contained more cones than rods
d. the Limulus has excellent color vision: a. it was possible to illuminate a
single receptor without illuminating its adjacent receptor
2. A receptor array in the Limulus is connected by the lateral plexus.
Receptor "A" is located 5 receptors to the left of Receptor "B." What
stimulation will result in the greatest firing rate recorded from "A"?
a. stimulate A with 10 units of illumination
b. stimulate A with 10 units of illumination and stimulate B
with 10 units
c. stimulate A with 10 units of illumination and stimulate B
with 20 units
d. stimulate A with 5 units of illumination and stimulate B with
20 units: a. stimulate A with 10 units of illumination
3. _________: Limulus :: ________: human retina.
a. Horizontal cells~ amacrine cells
b. Amacrine cells~ horizontal cells
c. Lateral plexus~ horizontal and amacrine cells
d. Lateral plexus~ rods: c. Lateral plexus~ horizontal and amacrine cells
4. White's illusion is an example of a perceptual effect that can be explained
by the principle of
a. belongingness.
b. lateral inhibition.
c. spatial summation.
d. convergence: a. belongingness.
, sensation and perception test bank
3
5. An advantage of ___________coding of visual object representation is that
a large number of stimuli can be signaled by a few neurons. a. retinal
b. specificity
c. distributed
d. extrastriate: c. distributed
6. The inability of lateral inhibition to explain White's illusion suggests
that some contrast ef-fects are based in a. the retina.
b. the cortex.
c. the lateral plexus.
d. the macula: b. the cortex.
7. A neuron studied by Quiroga et al. responded to
a. a photograph of Halle Berry's face.
b. a photograph of Halle Berry dressed as Catwoman
c. the words "Halle Berry" visually presented.
d. All of these caused the cell to fire: d. All of these caused the cell to fire
8. Human lateral inhibition is most likely accomplished by _____. a. end-
stopped cells
b. extrastriate cells
c. bipolar cells
d. dissociative cells: c. bipolar cells
9. Lateral inhibition has previously been used to explain _____.
a. the Hermann Grid only
b. Mach bands and the Hermann Grid, but not the Chevreul illusion c.
Chevreul illusion only
d. the Hermann Grid and Mach bands, and the Chevreul
illusion: d. the Hermann Grid and Mach bands, and the Chevreul
illusion
10. The gray intersections in the Hermann Grid _____.
a. are physically present
b. are explained by dark adaptation
3
1. Hartline et al. (1956) selected the Limulus to demonstrate
lateral inhibition because _____.
a. it was possible to illuminate a single receptor without illuminating its
adjacent receptor
b. it was readily available to him and was extremely easy to breed in the lab
c. the Limulus eye contained more cones than rods
d. the Limulus has excellent color vision: a. it was possible to illuminate a
single receptor without illuminating its adjacent receptor
2. A receptor array in the Limulus is connected by the lateral plexus.
Receptor "A" is located 5 receptors to the left of Receptor "B." What
stimulation will result in the greatest firing rate recorded from "A"?
a. stimulate A with 10 units of illumination
b. stimulate A with 10 units of illumination and stimulate B
with 10 units
c. stimulate A with 10 units of illumination and stimulate B
with 20 units
d. stimulate A with 5 units of illumination and stimulate B with
20 units: a. stimulate A with 10 units of illumination
3. _________: Limulus :: ________: human retina.
a. Horizontal cells~ amacrine cells
b. Amacrine cells~ horizontal cells
c. Lateral plexus~ horizontal and amacrine cells
d. Lateral plexus~ rods: c. Lateral plexus~ horizontal and amacrine cells
4. White's illusion is an example of a perceptual effect that can be explained
by the principle of
a. belongingness.
b. lateral inhibition.
c. spatial summation.
d. convergence: a. belongingness.
, sensation and perception test bank
3
5. An advantage of ___________coding of visual object representation is that
a large number of stimuli can be signaled by a few neurons. a. retinal
b. specificity
c. distributed
d. extrastriate: c. distributed
6. The inability of lateral inhibition to explain White's illusion suggests
that some contrast ef-fects are based in a. the retina.
b. the cortex.
c. the lateral plexus.
d. the macula: b. the cortex.
7. A neuron studied by Quiroga et al. responded to
a. a photograph of Halle Berry's face.
b. a photograph of Halle Berry dressed as Catwoman
c. the words "Halle Berry" visually presented.
d. All of these caused the cell to fire: d. All of these caused the cell to fire
8. Human lateral inhibition is most likely accomplished by _____. a. end-
stopped cells
b. extrastriate cells
c. bipolar cells
d. dissociative cells: c. bipolar cells
9. Lateral inhibition has previously been used to explain _____.
a. the Hermann Grid only
b. Mach bands and the Hermann Grid, but not the Chevreul illusion c.
Chevreul illusion only
d. the Hermann Grid and Mach bands, and the Chevreul
illusion: d. the Hermann Grid and Mach bands, and the Chevreul
illusion
10. The gray intersections in the Hermann Grid _____.
a. are physically present
b. are explained by dark adaptation
