ap psych unit 3b and c

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Tissue destruction a brain lesion is a naturally or experimentally caused destruction of brain tissue. Electroencephalogram
An amplified recording of the waves of electrical activity that sweep across the brain's surface. These waves are measured by electrodes placed on the scalp. Computed tomography Scan (ct scan)
A series of x-ray photographs taken from different angles and combined by computer into a composite representation of a slice through the body; CAT scan.
PET (positron emission tomography) Scan
A visual display of brain activity that detects where a radioactive form glucose goes while the brain performs a given task.
MRI (magnetic resonance imaging)
A technique that uses magnetic fields and radio waves to produce computer-generated images of soft tissue. MRI scans show brain anatomy. fMRI (functional MRI)
A technique for revealing bloodflow and, therefore, brain activity by comparing successive MRI scans. fMRI scans show brain function.
Brainstem
The oldest part and central core of the brain, beginning where the spinal cord swells as it enters the skull; the brainstem is responsible for automatic survival functions.
Medulla
The base of the brainstem; controls heartbeat and breathing.
Reticular Formation
A nerve network in the brainstem that plays an important role in controlling arousal.
Thalamus
The brains sensory switchboard, located on top of the brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla.
Cerebellum
The "little brain" at the rear of the brainstem; functions include processing sensory input and coordinating movement output and balance.
Limbic System
Doughnut-shaped neural system including the hippocampus, amygdala, and hypothalamus, located