AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

STUDYING THE BRAIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following shows the areas of the brain that are active, based on blood flow?
A
Post-mortem examination
B
EEGs
C
fMRI
D
ERPs
Explanation: 

Detailed explanation-1: -FMRI revealed that the generation of negativity (increased cortical excitation) was accompanied by widespread activation in central, pre-frontal, and parietal brain regions as well as the basal ganglia.

Detailed explanation-2: -Functional magnetic resonance imaging, or FMRI, works by detecting the changes in blood oxygenation and flow that occur in response to neural activity – when a brain area is more active it consumes more oxygen and to meet this increased demand blood flow increases to the active area.

Detailed explanation-3: -A brain perfusion scan is a type of brain test that shows the amount of blood taken up in certain areas of your brain. This can provide information on how your brain is functioning. There are several different types of brain perfusion scans.

Detailed explanation-4: -fMRI detects brain activity by measuring the changes in both the amount of oxygen in the blood and the amount of blood flow [4, 5]. This measurement is known as blood-oxygen-level-dependent activity (BOLD activity).

There is 1 question to complete.