Windows in the brain Flashcards
What are lesions?
tissue destruction
What causes lesions?
disease or injury
What happened to Phineas Gage?
Could never feel positive emotions again b/c pole went thru left side of brain
What is an EEG also known as?
Electroencephalogram
How is an EEG performed?
Electrodes placed on scalp
What does the EEG measure?
Brain waves during sleep AKA function
What does an EEG create?
Create amplified recording of waves of electrical activity that sweep across the brain’s surface
What is epilepsy?
Brain disorder marked by seizures & loss of consciousness due to out of control electrical activity in the brain
What is a CAT scan also known as?
computed tomography
What is a CAT scan?
series of x-ray photos taken from different angle and combined by a computer into a composite representation
What does a CAT scan create?
composite representation of a slice thru the body
What does the CAT scan show?
Structure
What does the PET scan show?
Function
What does the MRI show?
Structure
What does the fMRI show?
Structure and function