Draw Language Center Of The Brain Flashcards

1
Q

Where is language produced in the brain?

A

Left hemisphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the two important regions of the left hemisphere ?

A

Broca and wernicke’s areas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where is Broca’s area located

A

Prefrontal cortex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is Broca’s area associated with?

A

Production of expressive language spoken and written

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Broca aphasia

A

Lesions in this area due to stroke result in difficulty producing fluent speech although the ability to understand spoken and written language is largely retained

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Pet scan

A

Functional imaging technique that measures the emission of positrons that result from the metabolism of radioactive tracer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

When is radioactive tracer injected

A

Prior to the scan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How to measure brain activity

A

A radiolabeled form of glucose is used as the tracer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How is glucose metabolized in the brain

A

Glucose is metabolized more quickly by active brain regions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How are active brain regions represented?

A

Active brain regions are represented by hypermetabolic regions by PET scanners

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the protocol for EEG?

A

Electrodes places on scalp and connected to an amplifier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What do EEG measure?

A

Voltage fluctuations in the brain over a period of time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the protocol for computerized tomography?

A

Computer combines multiple x-rays taken at different angles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does computed tomography measure

A

Detailed structure of internal organs and tissues at a single point in time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the protocol for fmri?

A

Scanner detects the differential properties of oxyhemoglobin and de oxyhemoglobin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does fmri measure?

A

Changes in blood oxygenation in the brain over time

17
Q

What is the protocol for PET scan

A

Scanner detects radioactive tracer attached to glucose analog

18
Q

What does PET measure

A

Changes in glucose metabolism in the brain over time