psychology #4

Question 1

EEG

Answer 1

an amplified recording of the waves of electrical activity sweeping across the brains surface.; measured by electrodes placed on the scalp

Question 2

MEG

Answer 2

a brain imaging technique that measures magnetic fields from the brains natural electrical activity

Question 3

CT

Answer 3

a series of x-ray photographs taken from different angles and combined by computer into a composite representation of a slice of the brains structure (cat scan)

Question 4

PET

Answer 4

a visual display of brain activity that detects where a radioactive form of glucose while the brain performs a given task

Question 5

MRI

Answer 5

a technique that uses magnetic fields and radio waves to produce computer gernerated images of soft tissue

Question 6

fMRI

Answer 6

a technique for revealing bloodflow and brain activity by comparing successive MRI scans

Question 7

Brainstem

Answer 7

the oldest part and central core of the brain, beginging where the spinal chord swells as it enters the skull; resposible for sutomatic survival functions

Question 8

Medulla

Answer 8

base of the brainstem; contols heartbeat and breathing

Question 9

Thalamus

Answer 9

located on the top of the brainstem; directs messages to the sensory recieving areas in the corex and transits replies to the cerebellum

Question 10

Reticular formation

Answer 10

nerve network that travels through the brainstem into the thalamus; causes arousal

Question 11

Cerebellum

Answer 11

the “little brain” at the rear of the brainstem; processes sensory input, coordinates movement outputand balance, enables nonverbal learning and memory