Term
| electroencephalogram (EEG) |
|
Definition
| an amplified recording of the waves of electrival activity that sweep across the brain's surface. these waves are measured by the electrodes placed on the scalp |
|
|
Term
| PET (positron emission tmography) scan |
|
Definition
| a visual display of brain activity that detects where a radioactive form of glucose goes white the brain performs a given task |
|
|
Term
|
Definition
| a technique that uses magnetic fields and radio waves to produce computer-generated images of soft tissu. MRI scans shor brain anatomy. |
|
|
Term
|
Definition
| tissue destruction. a brain lesion is a naturally or experimentally caused destruction of brain tissue |
|
|
Term
|
Definition
| a technique for revealing bloodflow and therefored brain activity by comparing successive MRI scans. fMRI scans show brain function |
|
|
Term
|
Definition
| the oldest part of the central core of the brain, beginning where the spinal cord swells as it it enters the skull; it is responsible for automatic survival functions |
|
|
Term
|
Definition
| the base of the brainstem; controls heartbeat and breathing. |
|
|
Term
|
Definition
| the brain's sensory switchboard, located on top of the brainstem; it directs messages to the sensory recieving areas in the cortex and transmits replies to the cerebellum and medulla |
|
|
Term
|
Definition
| a nerve network that travels through the brainstem and play an important role in controlling arousal |
|
|
Term
|
Definition
| the little brain at the rear of the brain-stem; functions include processing sensory input and coorginating movemnt output and balance |
|
|
Term
|
Definition
| neural system located below the cerebral hemispheres; associated with emotions and drives |
|
|
Term
|
Definition
| tow lima bean-sized neural clusters in the limbic system; linked to emotion |
|
|
Term
|
Definition
| a neural stucture lying below the thalamus; it directs several maintenace activities, helps govern the endocrine system via the pituitary gland, and is linked to emotion and reward |
|
|
