Ways of Studying the Brain Flashcards
What does FMRI stand for?
Functional Magnetic Resonance Imaging
What do FMRIs measure?
Blood flow in the brain when a person performs a task
How do FMRIs work?
By detecting the changes in blood oxygenation and flow that occur as a result of neural activity in specific parts of the brain
What is the haemodynamic response?
Brain is more active it consumes more oxygen and to meet increased demand blood flow is directed to the active area
What do FMRIs produce?
3D images
What does EEGs stand for?
Electroencephalogram
What do EEGs measure?
Electrical activity through electrodes attached to the scalp
How is information processed in the brain when using EEGs?
Processed as electrical activity in the form of action potentials or nerve impulses
What are the 4 types of EEG patterns?
- Alpha
- Beta
- Theta
- Delta
What can EEGs also detect?
Illnesses like epilepsy and sleep disorders
What does ERPs stand for?
Event Related Potentials
How is activity measured in ERPs?
A stimulus is presented and the researcher looks for activity related to the stimulus
What is post morgen examination?
When researchers study the physical brain of a person who displayed particular behaviours when the were alive
What are some examples of post mortem examination?
Broca and Wernicke
What did Iverson found in a post mortem examination?
He found a higher concentration of dopamine in schizophrenic patients especially in the limbic system
