Ways Of Studying The Brain- fMRIs

Question 1

What does fMRI measure to detect brain activity?

Answer 1

fMRI measures changes in blood oxygenation and blood flow in response to neural activity.

Question 2

What is the haemodynamic response in fMRI?

Answer 2

It is the process where increased brain activity leads to greater oxygen use and increased blood flow to that area.

Question 3

What happens during a task-based fMRI scan?

Answer 3

Participants perform tasks, and fMRI observes which brain areas become active during the task.

Question 4

What is the output of an fMRI scan and what does it show?

Answer 4

It produces 3D activation maps that show which parts of the brain are involved in specific mental processes, helping identify localisation of function.