The Brain

Across
2.	the cortex in the front of the parietal lobes that registers and processes body touch and movement sensations
5.	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
8.	a technique that uses magnetic fields and radio waves to produce computer-generated images that distinguish among different types of soft tissue; allows us to see structures within the brain
9.	portion of the cerebral cortex lying roughly above the ears; includes the auditory areas, each receiving information primarily from the opposite ear
10.	impairment of language, usually caused by left hemisphere damage either to Borca's area (impairing speaking) or to Wernicke's area (impairing understanding)
11.	the lobe of the cerebral cortex lying at the top of the head and toward the rear; receives sensory input for touch and body position.
12.	tissue destruction
14.	the formation of new neurons
17.	the cortex at the rear of the frontal lobes that controls voluntary movements
18.	____________area controls language reception - a brain area involved in language comprehension and expression; usually in the left temporal lobe
23.	the brain's 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
24.	the brain's ability to change especially during childhood, by reorganizing after damage or by building new pathways based on experience
25.	types of cells in the nervous system that support, nourish, and protect neurons
26.	a type of scanning technique that displays brain activity and detects where a radioactive form of glucose goes while the brain performs a given task

Down
1.	the intricate fabric of interconnected neural cells that covers the cerebral hemispheres; the body's ultimate control and information-processing center
3.	a neural structure lying below (hypo) the thalamus; it directs several maintenance activities (eating, drinking, body temperature), helps govern the endocrine system via the pituitary gland, and is linked to emotion and reward
4.	the base of the brainstem; controls heartbeat and breathing
6.	split brain is a condition resulting from surgery that isolates the brain's two ______________ by cutting the fibers connecting them
7.	our awareness of ourselves and our environment
13.	the "little brain" attached to the rear of the brainstem; its functions include processing sensory input and coordinating movement output and balance
15.	the lobe of the cerebral cortex lying just behind the forehead; involved in speaking and muscle movements and in making plans and judgments
16.	____________ area controls language expression - usually in the left frontal lobe, directs muscle movements involved in speech
19.	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
20.	the lobe of the cerebral cortex lying at the back of the head; includes the visual areas, which receive visual information from the opposite visual field
21.	two lima bean-sized neural clusters in the limbic system; linked to emotion
22.	__________ processing is the principle that information is often simultaneously processed on separate conscious and unconscious tracks