Visual Perception and the Brain Quiz

What type of cells in the retina are responsible for night vision?

• Bipolar cells

• Ganglion cells

• Cones

• Rods

Which part of the retina contains cone cells responsible for high acuity tasks like reading and color vision?

• Cornea

• Optic nerve

• Sclera

• Fovea

Where do signals from the photoreceptor cells pass through before reaching the brain?

• Thalamus

• Cerebral cortex

• Interneurons in the second layer of the retina

• Ganglion cells in the third layer of the retina

Which part of the brain controls pupillary size in response to light intensity?

• Primary visual cortex

• Thalamus

• Superior colliculus

• Pretectum

What is responsible for moving the eyes in short jumps, called saccades?

• Pretectum

• Superior colliculus

• Lateral geniculate nucleus

• Primary visual cortex

Where do most projections from the retina travel via the optic nerve?

• Amygdala

• Lateral geniculate nucleus

• Hippocampus

• Cerebellum

What is the function of the lateral geniculate nucleus (LGN) in the brain?

• Processes color and fine structure

• Controls pupillary size in response to light intensity

• Moves the eyes in short jumps

• Separates retinal inputs into parallel streams

What is the function of primary visual cortex (V1) in the brain?

• Positions objects in two dimensions of the visual world

• Moves the eyes in short jumps

• Controls pupillary size in response to light intensity

• Processes color and fine structure

How is the third dimension, depth, mapped in primary visual cortex (V1)?

• By controlling pupillary size in response to light intensity

• By moving the eyes in short jumps

• By processing color and fine structure

• By comparing signals from the two eyes

What is largely responsible for the phenomenon of color constancy in the brain?

• Inferior temporal lobe

• Secondary visual cortex (V2)

• Parietal lobe

• Primary visual cortex (V1)