Tools to Examine our Mind

Question 1

Lesions

Answer 1

Tissue destruction; a brain lesion is a naturally or experimentally caused destruction of brian tissue

Question 2

EEG- Electroencephalogram

Answer 2

An amplifed recording of the waves of electrical acting that sweep across the brain’s surface. These waves are measured by electrodes placed on the scalpe

Question 3

CT- Computed Emission Tomography

Answer 3

A series of X-Ray photographs taken from different angles and combined by computer into a composite representation of a slice through the body

Question 4

PET- Position Emission Tomography

Answer 4

A visual display of brain activity that detects where a radio active form of glucose goes while the brain preforms a given task

Question 5

MRI- Magnetic Resonance Imaging

Answer 5

A technique that uses magnetic feilds and radio waves to produce computer generated images of soft tissue. MRI scans show brain anatomy

Question 6

fMRI- Functional MRI

Answer 6

A technique for revealing bloodflow and, therefore, brain activity by comparing succesive MRI scans. fMRI scans show brain functions