Deck 13: Extension: C - The Occipital Lobes

Question 1

The area of the visual cortex that receives the largest direct input from the lateral geniculate nucleus is _____.

A) V1
B) V2
C) V3
D) V4

Answer 1

V1

Question 2

Which region of the brain is associated with object analysis?

A) the lateral occipital
B) the superior temporal sulcus
C) the lateral intraparietal sulcus
D) the ventral intraparietal sulcus

Answer 2

the lateral occipital

Question 3

Destruction of one optic nerve will produce _____.

A) scotoma
B) monocular blindness
C) homonymous hemianopia
D) bitemporal hemianopia

Answer 3

monocular blindness

Question 4

The regions of cytochrome - rich areas in the occipital lobe are referred to as _____.

A) lamina
B) striations
C) blobs or stripes
D) layers

Question 5

Neurons devoted to the perception of _____ are widespread, and their function is believed to be integral to the analysis of other features such as shape and motion.

A) position
B) size
C) depth
D) color

Question 6

Which visual function is a function of the dorsal stream regions?

A) body analysis
B) object-directed grasping
C) analysis of landmarks
D) analysis of biological motion

Question 7

A patient such as D.B., who is able to point accurately to locations that he does not report seeing, is demonstrating _____.

A) visual agnosia
B) cortical blindness
C) scintillating scotoma
D) nystagmus

Question 8

Apperceptive agnosia is usually related to damage in the _____.

A) lateral occipital lobes
B) bilateral calcarine fissure
C) lateral geniculate nucleus
D) anterior temporal lobe
Answer Key

Question 9

A patient who loses the ability to copy a drawing of an object, but can draw that object from memory, is demonstrating _____.

A) prosopagnosia
B) visuospatial agnosia
C) associative agnosia
D) visual form agnosia

Question 10

A visual defect called _____ indicates damage to one optic tract, a lateral geniculate body, or area V1 of one occipital lobe.

A) bitemporal hemianopia
B) homonymous hemianopia
C) color blindness
D) small scotoma

Question 11

Individuals with damage to area V1 can still receive visual input to higher levels, in part via a pathway involving the _____ nucleus of the thalamus.

A) medial geniculate
B) pulvinar
C) collicular
D) interstitial

Question 12

People who have prosopagnosia cannot perceive _____ accurately.

A) objects
B) words
C) faces
D) motion

Question 13

Small blind spots resulting from small lesions in the occipital lobe are known as _____.

A) scotomas
B) nystagmus
C) macular sparing
D) hemianopia

Question 14

Milner and Goodale propose that the dorsal stream of visual processing is important for _____.

A) object recognition
B) color perception
C) depth perception
D) the visual control of action

Question 15

Individuals who lose their ability to see color because of brain damage have selective damage to area _____.

A) V2
B) V3
C) V4
D) V5