Deck 11: Extension: A - Cerebral Asymmetry

Question 1

Electric stimulation of the right temporal lobe cortex of a conscious patient can _____.

A) produce localized movements
B) initiate déjà vu experiences
C) accelerate production of speech
D) increase the patient's IQ score

Answer 1

initiate déjà vu experiences

Question 2

When neuropsychologists refer to a function as being lateralized, they mean that the function:

A) is performed most efficiently by a lateral region of the brain.
B) is performed most efficiently by one hemisphere of the brain.
C) can be performed equally well by either hemisphere of the brain.
D) is performed most efficiently in a lateral motion.

Answer 2

is performed most efficiently by one hemisphere of the brain.

Question 3

Following damage to the left hemisphere, the most likely outcome would be a decline in:

A) mental rotation ability.
B) verbal ability.
C) pitch recognition.
D) emotional memory.

Answer 3

verbal ability.

Question 4

The most pronounced anatomical asymmetries are found in the areas associated with:

A) vision.
B) hearing.
C) language.
D) emotion.

Question 5

If the right carotid artery is injected with an anesthetic drug, within a few seconds _____.

A) the ipsilateral arm will exhibit flaccid paralysis
B) speech will probably be interrupted
C) speech will always be interrupted
D) the contralateral arm will exhibit flaccid paralysis

Question 6

Which of the following is generally true of the left hemisphere, relative to the right hemisphere in humans?

A) It has a larger size and weight overall.
B) It has a larger Heschl's gyrus.
C) It has a smaller visible frontal operculum.
D) It has a larger planum temporale.

Question 7

The largest functional differences are found between _____ rather than _____.

A) cerebral sites; cerebral sides
B) cerebral sides; cerebral sites
C) cortical layers; cortical columns
D) genders; age groups

Question 8

Which of the following tests shows a left - ear advantage?

A) backward speech
B) environmental sounds
C) difficult rhythms
D) vowels

Question 9

Surgical deconnection of the two cerebral hemispheres by cutting the corpus callosum (and other commissures) is a "last resort" treatment for _____.

A) schizophrenia
B) epilepsy
C) aphasia
D) multiple sclerosis

Question 10

The most convincing experimental design for demonstrating the localization of a particular function to a brain region is the:

A) single dissociation.
B) double dissociation.
C) double association.
D) case study.

Question 11

The identification of melodies shows _____ in a dichotic listening task.

A) a frontal lobe advantage
B) a right-ear advantage
C) a left-ear advantage
D) no advantage due to either ear

Question 12

If you placed a common object such as a key out of sight in the left hand of a typical commissurotomy patient, she:

A) could neither recognize it by shape nor name it.
B) could recognize it by shape and verbally name it.
C) could identify the object verbally, but not describe its shape.
D) could recognize the object by its shape, but not identify it verbally.

Question 13

Studies by Milner and colleagues place the percentage of right - handed individuals with speech functions lateralized to the right hemisphere to about _____ %.

A) 2
B) 15
C) 50
D) 95

Question 14

You are an examining psychologist at a neurological clinic. After administering an IQ test, you find the main deficits are in nonverbal recall and the copying of drawings. You suspect damage to the _____.

A) left frontal lobe
B) right frontal lobe
C) right temporal lobe
D) left temporal lobe

Question 15

Which of the following factors does not usually influence laterality of function in humans?

A) genetics
B) gender
C) handedness
D) height

Question 16

When viewing chimeric stimuli, the commissurotomy patients studied by Levy and coworkers tended to recognize _____.

A) both faces, as do normal subjects
B) the face flashed to the right visual field only
C) the face flashed to the left visual field only
D) neither face

Question 17

A commissurotomy typically refers to the severing of the:

A) arcuate fasiculus.
B) medial forebrain bundle.
C) fornix.
D) corpus callosum.

Question 18

Visual images can be presented individually to each hemisphere using a device known as a(n):

A) oscilloscope.
B) dichotoscope.
C) tachistoscope.
D) periscope.

Question 19

In intact individuals, hemispheric differences in cognitive ability can be detected by measuring:

A) differences in processing efficiency.
B) self-reports of cognitive strategies.
C) galvanic skin response.
D) differences in processing efficiency, self-reports of cognitive strategies, and galvanic skin response.

Question 20

Blindfolded subjects using only the sense of touch perform better with the left hand at _____.

A) Braille reading
B) object recognition
C) both Braille reading and object recognition
D) neither Braille reading nor object recognition

Question 21

Imaging studies have shown that, contrary to expectation, activity in Broca's area does not increase during:

A) effortful speech.
B) articulate speech.
C) automatic speech.
D) emotional speech.

Question 22

The results of tests of lateralization of function must be interpreted with care because they:

A) can be affected by cognitive strategies.
B) are politically sensitive.
C) are qualitative, not quantitative.
D) always come from brain-damaged individuals.
Answer Key

Question 23

According to Kimura and others, production and analysis of rapidly occurring sequences of stimuli is believed to be a(n):

A) specialized function of the right hemisphere.
B) ability equally distributed between both hemispheres.
C) specialized function of the left hemisphere.
D) ability relying primarily on subcortical structures.

Question 24

The ability of the right hemisphere to support language abilities after damage to the left hemisphere supports:

A) isolationist models.
B) supermodels.
C) specialization models.
D) interaction models.

Question 25

A task requiring a subject to analyze the configuration of multiple, simultaneously presented geometric patterns would be expected to lead to increased blood flow:

A) preferentially in the left hemisphere.
B) preferentially in the right hemisphere.
C) equally in both hemispheres.
D) only in the basal ganglia.

Question 26

Specialization models of hemispheric function posit:

A) overlapping information-processing roles for each hemisphere.
B) identical information-processing roles for each hemisphere.
C) nonoverlapping information-processing roles for each hemisphere.
D) shifting information-processing roles for the two hemispheres.