Ventromedial frontal areas & handedness Flashcards Preview

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Flashcards in Ventromedial frontal areas & handedness Deck (24)
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1

What area was likely damaged in the case of Phineas Gage?

Ventromedial region of both frontal lobes

2

T/F Damage to the ventromedial frontal area has no impact on personality

False; damage can considerably alter personality

3

The ventromedial frontal area is reciprocally connected with what?

Subcortical nuclei, like the amygdala and hypothalamus

4

It is hypothesized that the ventromedial frontal area functions in what?

Emotion and decision making

5

A high concentration of _______ receptors was found in monkeys with socially adapted behavior

Serotonin S2

6

A low concentration of serotonin S2 receptors was present in monkeys with _____ behavior

Aggressive and socially uncooperative

7

Functions of the prefrontal association area include:

Judgment
Planning for the future
Holding and organizing events from memory for prospectivr action

8

About 95% of the population uses which cerebral hemisphere?

Left hemisphere

9

T/F If the dominate hemisphere is damaged early in life, the non-dominate hemisphere cannot develop the speech and language comprehension capabilities

False, the non-dominant hemisphere can develop those capabilities (plasticity)

10

General interpretive functions of ____ and ____ gyrus are more well developed in one cerebral hemisphere

Wernicke's and angular gyrus

11

T/F Speech and motor are more well developed in one cerebral hemisphere

True

12

What percentage of right handed people have a left hemisphere dominance?

96%

13

What percentage of right handed people have equal left and right hemisphere dominance?

0%

14

T/F Most left handed people have right hemisphere dominance.

False; most are left dominant (70%)

15

What percentage of left handed people have equal dominance between the left and right hemispheres?

15%

16

The left hemisphere is usually associated with what characteristics?

Language based intellectual functions
Interpretive functions of symbolism, understanding spoken and written words
Analytical functions (like math)
Speech

17

The right hemisphere is associated with what?

Music
Non-verbal visual experiences (body language)
Spatial relations

18

Bidirectional communication between anterior portions of the temporal lobe occurs through what?

Anterior commisure

19

Bidirectional communication between most of the cortical hemispheres occurs through what?

Corpus callosum

20

The corpus callosum does not provide communication between what lobe?

Anterior portions of temporal lobe

21

If the corpus callosum is sectioned, what no longer occurs?

Information transfer from one cortex to the other

22

Why was the corpus callosum originally split?

To prevent spread of seizure activity from one hemisphere to the other in severe cases of epilepsy

23

The left hemisphere usually matches based on what?

Function

24

The right hemisphere usually matches based on _____

Appearance