Adrian,a neurologist,is examining the brain activity of children with attention deficit hyperactivity disorder.He observes images of their brains while they are performing a reading task and then again when they are not engaged in the activity.He compares these readings.Although he establishes a relationship between the two variables,he is not able to establish that one variable causes the other.Which of the following brain imaging techniques is he most likely to have used for his study?
A)Functional magnetic resonance imaging (fMRI)
B)Positron-emission tomography (PET scan)
C)Computerized axial tomography (CAT scan)
D)Transcranial magnetic stimulation (TMS)

Question

Quizplus · Accepted Answer

fMRI is a brain imaging technique that measures changes in blood flow in the brain to different areas during a task or activity. It can show which areas of the brain are activated during a certain task and can compare brain activity during different tasks or resting states. However, it does not directly establish causation between variables. This is the most likely technique used by Adrian to examine brain activity in children with attention deficit hyperactivity disorder during a reading task and at rest.

Adrian,a Neurologist,is Examining the Brain Activity of Children with Attention