Brain scanning techniques

Question 1

Which method of brain scan detects changes in blood oxygenation and flow that occur as a result of neural activity in specific parts of the brain?

Answer 1

fMRI

Question 2

Which method of brain scan measures electrical activity within the brain via electrodes that are fixed to an individuals scalp using a skull cup?

Answer 2

EEG

Question 3

Which method of brain scan isolates neural responses found in EEG scan and filters out extraneous activity from the EEG, leaving only those responses that relate to the specific stimulus?

Answer 3

ERP

Question 4

Which form or brain scanning is virtually risk-free, does not rely on the use of radiation and produces images with very high spatial resolution?

Answer 4

fMRI

Question 5

Which type of brain scan has contributed to our understanding of the stages of sleep and has helped with diagnosing epilepsy?

Answer 5

EEG

Question 6

In what type of brain scan is it difficult to eliminate extraneous material and lacks standardisation?

Answer 6

ERP

Question 7

What is a weakness of EEG brain scans?

Answer 7

They don’t pinpoint the exact source of neuronal activity

Question 8

In which type of brain scan is there a 5 second lag between the image on the screen and the initial firing of neuronal activity?

Answer 8

fMRI

Question 9

Which type of brain scan has high temporal resolution, making it a widespread use in measurement of cognitive functions?

Answer 9

ERP

Question 10

Which type of brain scan produces 3-dimensional images showing the parts of the brain involved in particular mental processes, having important implications for our understanding of localisation of function.?

Answer 10

fMRI

Question 11

Which brain scan is expensive and why?

Answer 11

fMRI, if the person moves it isn’t successful