What is a lesion?
tissue destruction
What does an EEG do?
records waves of electrical activity sweeping across brains surface
What does a CT scan focus on?
examines brain through x ray photographs that reveal brain damage
What is a PET scan?
display of brain activity that detects where radioactive glucose goes while performing a task
What does an MRI do?
magnetic fields and waves produce soft tissue (brain anatomy).
What are lesions?
tissue destruction
What does an EEG do?
recording of waves of electrical activity sweeping across brains surface – measured by electrodes
on the scalp
What does a CT scan do?
reveals brain damage
What does a PET scan reveal
display of brain activity that detects where radioactive glucose goes while performing a task
What does a MRI reveal?
soft tissue/brain anatomy
What does an fMRI reveal?
blood flow and brain function
What are the functions of the brain stem and cerebellum
coordinates body
Whats the function of the limbic sys.
manages emotions and connects thoughts to body
What does the cortex do?
integrates information
What is apart of the brain stem?
1) medulla - controls most basic function (heartbeat)
2) Pons - coordinates automatic and unconscious movement
What does the thalamus do?
receives info from all senses besides smell and sends messages to medulla and cerebellum
What is the reticular formation?
A nerve network in the brain stem that enables alertness
What does the cerebellum do?
coordinate voluntary movement
What is apart of the limbic sys?
1) Hypothalamus - influences hunger; regulates thirst/body temp
2) Hippocampus - processes conscious, episodic memories
3) Amygdala - helps process emotions (fear/anger)