Deck 13: Extension: A - The Occipital Lobes

Question 1

The primary visual cortex is associated with which of the following anatomical landmarks?

A) the lingual gyrus
B) the central sulcus
C) the calcarine sulcus
D) the occipital fissure

Answer 1

the calcarine sulcus

Question 2

The condition in which there is an inability to use visual information to guide voluntary movement is called:

A) optic ataxia.
B) vestibular ataxia.
C) ideational apraxia.
D) optic alexia.

Answer 2

optic ataxia.

Question 3

A patient who reports that moving objects suddenly freeze in one location, only to suddenly reappear at another location, is likely to have a lesion in the area of:

A) V1.
B) V2.
C) V4.
D) V5.

Answer 3

V5.

Question 4

Cytochrome oxidase rich areas of V1 are called _____.

A) stripes
B) holes
C) blobs
D) barrels

Question 5

When analyzing facial features, visual attention is directed more toward the:

A) medial visual field.
B) right visual field.
C) left visual field.
D) outlines of the face.

Question 6

The role of the visual pathway in the monkey brain that goes from V1 to the temporal lobe is visual:

A) guidance of action.
B) identification of location.
C) object recognition.
D) motion detection.

Question 7

The role of the dorsal stream is:

A) the visual guidance of movement.
B) the visual recognition of objects.
C) color perception.
D) the recognition of a species' typical behaviors.

Question 8

Blindness of one entire binocular visual field is termed _____.

A) homonymous hemianopia
B) bitemporal hemianopia
C) quadratic anopia
D) monocular blindness

Question 9

Complete unilateral destruction of the left occipital lobe would result in:

A) left visual field hemianopia.
B) right visual field hemianopia.
C) right monocular blindness.
D) left monocular blindness.

Question 10

Visual processing in humans continues beyond the occipital lobes to the:

A) frontal and parietal lobes.
B) frontal and temporal lobes.
C) temporal, parietal, and frontal lobes.
D) insular and entorhinal cortex.

Question 11

The superior temporal sulcus is characterized by significant numbers of _____ neurons.

A) polysensory
B) color-coding
C) movement-sensitive
D) depth-perception

Question 12

A patient who reports no conscious awareness of a visual stimulus, and yet can accurately report its location, is likely exhibiting:

A) macular sparing.
B) anosognosia.
C) apperceptive agnosia.
D) blindsight.

Question 13

Neurons in the _____ sulcus are active during the perception of biologically relevant motion.

A) rhinal
B) posterolateral
C) inferior temporal
D) superior temporal

Question 14

There are specialized regions of the visual cortex for processing all of the following stimuli EXCEPT:

A) color.
B) form.
C) motion.
D) emotion.

Question 15

In the Milner - Goodale model, which of the following visual areas projects directly to the parietal visual areas?

A) V1
B) V5
C) V2
D) V4

Question 16

As seen in subject B.K., preceding his stroke and development of a lasting scotoma, he had a history of _____ in which the aura was usually a(n) _____ .

A) epilepsy; olfactory hallucination
B) classic migraine; auditory hallucination
C) epilepsy; lightheadedness
D) classic migraine; left visual field defect

Question 17

Which of the following brain regions is primarily dedicated to visual processing?

A) the occipital lobes
B) the parietal lobes
C) the temporal lobes
D) the frontal lobes

Question 18

Patients with a left homonymous hemianopia often show sparing of left field vision from the _____ in both eyes.

A) superior parafovea
B) inferior parafovea
C) fovea
D) periphery

Question 19

Milner and Goodale base some of their model of vision beyond the occipital lobe on the finding in monkeys that many neurons in the posterior parietal lobe respond to visual stimuli only if _____.

A) the monkey reaches for the stimulus
B) the stimulus is moving
C) the stimulus is meaningful to the monkey
D) the stimulus is brightly colored

Question 20

Visual object recognition is most specifically a function of processing in the _____ stream.

A) dorsal
B) ventral
C) lateral
D) middle

Question 21

The fMRI data gathered by Wilson and Farah support the idea that object identification and mental rotation mainly involve activity in the _____.

A) right hemisphere
B) left hemisphere
C) left and right hemispheres
D) left frontal lobe
Answer Key

Question 22

Widespread, bilateral damage to the lateral regions of the occipital cortex is MOST likely to result in:

A) apperceptive agnosia.
B) prosopagnosia.
C) quadrantanopia.
D) associative agnosia.

Question 23

A person suffering from prosopagnosia would have difficulty:

A) recognizing a portrait of his or her mother.
B) recognizing the voice of his or her mother.
C) remembering the name of his or her mother.
D) recognizing a portrait, the voice, and the name of his or her mother.

Question 24

Associative agnosia is characterized by the ability to:

A) describe the shape of an object but not its color.
B) describe the physical characteristics of an object but not its identity.
C) describe the identity of an object but not its physical characteristics.
D) recognize objects in motion but not objects at rest.

Question 25

Alexia can be considered to be due to:

A) object agnosia for living things.
B) object agnosia for human faces.
C) object agnosia for letters and words.
D) synesthesia for letters and words.