Deck 4: Laterality

Question 1

The functional specialization of the left and right hemispheres of the brain is known as __________.

A) differentiation
B) segregation
C) unimanual specialization
D) left-right separation
E) laterality

Answer 1

laterality

Question 2

What is the structure that connects cortical areas between the two hemispheres?

A) sacral commissure
B) dorsal commissure
C) anterior commissure
D) anterior callosum
E) posterior callosum

Answer 2

anterior commissure

Question 3

What is the area anterior to the splenium?

A) hippocampal commissure
B) hippocampus
C) anterior commissure
D) body of the corpus callosum
E) genu

Answer 3

body of the corpus callosum

Question 4

The structure that connects the two thalami is known as the __________.

A) massa intermedia
B) thalami commissure
C) thalami intermedia
D) posterior commissure
E) posterior intermedia

Question 5

Connecting cortical centers in similar locations between the two hemispheres is known as__________.

A) hemotopic
B) hemitopic
C) bitopoic
D) heterotopic
E) homotopic

Question 6

Connections between dissimilar cortical areas are known as __________.

A) hemotopic
B) hemitopic
C) bitopoic
D) heterotopic
E) homotopic

Question 7

What does the term anomalous dominance refer to?

A) Those people in whom the pattern of cerebral dominance is the "standard" form.
B) Those people whose heart and other organs are reversed from left to right compared to normal.
C) Those people in whom the pattern of cerebral dominance differs from the "standard" form.
D) Those people whose heart and other organs are reversed from right to left compared to normal.
E) When the cerebral dominance within an individual is unknown.

Question 8

Which of the following would be a predictable outcome of having the left hemisphere of one's brain removed, as in the case of E.C.?

A) The inability to move or feel tactile sensations from the right side of the body.
B) The inability to move or feel tactile sensations from the left side of the body.
C) The inability to initiate meaningful speech.
D) The loss of one's sight in the right visual field.
E) The inability to play music, despite previous experience.

Question 9

Which of the following neuroanatomical asymmetries does not favour the left hemisphere?

A) longer Sylvian fissure
B) planum temporale
C) lateral cerebellum
D) wider occipital lobe
E) inferior parietal lobule

Question 10

Which of the following neuroanatomical asymmetries favours the right hemisphere

A) globus pallidus
B) two Heschl's gyri instead of one
C) mesial temporal lobe
D) anterior cingulated sulcus
E) area 44

Question 11

Which structure interprets the sound waves that compose prosody?

A) massa intermedia
B) posterior commissure
C) anterior commissure
D) left hemisphere
E) right hemisphere

Question 12

Which of the following does not facilitate communication between the right hemisphere and left hemisphere?

A) corpus callosum
B) habenular commissure
C) hippocampal commissure
D) temporale commissure
E) posterior commissure

Question 13

It has been suggested that the severing of the commissure would improve the prognosis for individuals with a particular type of__________.

A) epilepsy
B) subcortical dementia
C) autism
D) schizophrenia
E) cortical dementia

Question 14

Which of the following statements is true?

A) Given the sum of all of the anatomical asymmetries between the hemispheres, the right has greater volume and mass than the left.
B) Given the sum of all of the anatomical asymmetries between the hemispheres, the left has greater volume and mass than the right.
C) Even with all of the anatomical asymmetries between the hemispheres, the left still has equal volume and mass with the right.
D) The anatomical asymmetries between the hemispheres differ depending on the individual; therefore some people have greater volume and mass on the right and others on the left.
E) There is no conclusive evidence for any of the above statements.

Question 15

Which of the following is not an anatomical region of the corpus callosum?

A) splenium
B) body of the corpus callosum
C) genu
D) rostrum
E) head of the corpus callosum

Question 16

Which of the following statements is true?

A) Very rare cases in which asymmetries, including those of heart and other organs, are reversed from left to right, exhibit left-handedness more frequently than normal cases.
B) Very rare cases in which asymmetries, including those of heart and other organs, are reversed from left to right, do not exhibit left-handedness more frequently.
C) Very rare cases in which asymmetries, including those of heart and other organs, are reversed from left to right, are often ambidextrous.
D) Those that are ambidextrous are often born with asymmetries, including those of heart and other organs that are reversed from left to right.
E) None of the above are true.

Question 17

Which of the following is a problem with the Previc theory?

A) The theory predicts that one third of all babies would be left-handed.
B) Fetal position is not related to head-turning or reaching behaviours.
C) The statistical data does not support the theory.
D) The experimental data does not support the theory.
E) All of the above.

Question 18

How does the developmental instability (DI) theory differ from most genetic theories of lateralization?

A) It proposes that variations in functional/anatomical asymmetries are outcomes of developmental instability.
B) It proposes that the testosterone levels differ depending on developmental instability.
C) It proposes that being left-handed is unnatural and due to a trauma in the womb.
D) It proposes that nutrition is a main factor in whether or not a child is left-handed or asymmetrically different.
E) It proposes that functional abnormalities are naturally occurring due to evolution.

Question 19

According to the developmental instability theory, people with laterality disturbances would also show some physical anomalies? Which of the following is not one of these anomalies?

A) widely spaced eyes
B) multiple hair whorls
C) different sized nostrils
D) low-set ears
E) fluctuating asymmetry of physical features

Question 20

Which of the following is not associated with an elevated prevalence of left- handedness?

A) allergies
B) Crohn's disease
C) delinquency
D) deafness
E) All of the above are associated.