Brain Scans and Imaging Technologies

Question 1

Lesioning

Answer 1

surgically graphing and dissecting the organic structures of the brain - done in autopsies

Question 2

EEG(Electroecphlograph

Answer 2

record bioelectric activity of brains neural citcuits - used in sleep studies

Question 3

CT/CAT (Computed Axial Tomography)

Answer 3

3-D veiwing of internal and external structures of the brain, provides cross sectional images of brain’s internal structure

Question 4

PET Scan(Position Emissions Tomography)

Answer 4

Radioactive glucose is injected into cartoid artery providing energy needed to for brain to preform a task, shows which parts of brain are being used during specific task

Question 5

MRI(Magnetic Resonance Imaging)

Answer 5

use magnetic waves instead of radiation like CT scans, have better images

Question 6

fMRI

Answer 6

video recording of brain activity, measure blood flow and oxygen levels