Neuro Imaging

Question 1

Neuroimaging has two basic purposes:

Answer 1

Anatomical - Location of masses or lesions within CNS Functional - Describe the location of brain activity associated with specific brain functions or dysfunction

Question 2

T/F - Functional Imaging is one of the most exciting and misleading forms of imaging.

Answer 2

True

Question 3

Functional Imaging comprises .

Answer 3

Methods for mapping information processing within the brain

Question 4

All functional neuroimaging is limited by two factors: 

Answer 4

Physical properties of the recording system Physiological constraints of the brain

Question 5

T / F - Images of brain activity only have meaning when acquired using the correct method and interpreted using the correct analyses

Answer 5

True

Question 6

Two major constraints of any form of imaging:

Answer 6

Spatial resolution Temporal resolution

Question 7

Spatial resolution

Answer 7

How accurate or with what precision can the neural structure or area associated with a behavior be located

Question 8

Temporal resolution

Answer 8

How close the timing between change in structure and behavior can be assessed

Question 9

Neuroimaging approaches:

Answer 9

Radiologic Positron Emission Tomography (PET scans) including Single-photon emission computerized tomography (SPECT) Magnetic Resonance Imaging (MRI) Functional MRI (fMRI)

Question 10

Other neuroimaging approaches/ techniques:

Answer 10

Electroencephalography (EEG) Event related potentials (ERPs) & Evoked potentials (EPs) Magnetoencephalography (MEG) Near-infrared Spectroscopy

Question 11

Radiologic:

Answer 11

Standard Radiographs Classic Angiography and Computed Tomography (CT) scanning and CT-angiography