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psych U3M11

imaging techniques and older brain anatomy

QuestionAnswer
EEG? Measure brain activity in milliseconds by placing electrodes on the scalp; FUNCTION
CAT? Provides 3D view of the brain by slicing images ; STRUCTURE
MRI? Uses magnetic fields and radio waves to produce computer-generated images of soft tissue; ANATOMY.
PET? Visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a task; FUNCTION
fMRI? Reveals blood flow, therefore revealing activity by comparing MRI scans; FUNCTION AND STRUCTURE
What are the structures that make up the limbic system? the hippocampus, amygdala, and the hypothalamus
job of the thalamus directs messages to the sensory RECEIVING areas in the cortex and transmits REPLIES to the cerebellum and medulla.
job of hypothalamus Directs maintenance activities, helps control endocrine system thru the pituitary gland, and linked to emotion and reward.
job of amygdala controls emotion/agressive anger; flight/fight
job of hippocampus affects learning and (short-term) memory
job of cerebellum coordinates voluntary movement, balance
job of pons? controls facial expressions and sleep&wake cycles
job of reticular formation? helps control arousal and attention; loose network of neurons
job of medulla? controls heartbeat and breathing and blood pressure
location of medulla base of the brainstem
location of thalamus top of the brainstem
location of cerebellum rear of brainstem
location of limbic system below the cerebral hemispheres
location of amygdala two lima bean sized neural clusters in limbic system
location of hypothalamus below the thalamus
microelectrode (EEG) tiny electrodes put in neurons to study the individual function
macroelectrode (EEG) analyzes electrical activity of brain in various cognitive states in brainwaves
lesion a region in an organ or tissue that has suffered damage through injury or disease
Created by: allyson.lee
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