Regarding Research Using PET Scans and FMRI with Patients in a Persistent

question 446

Multiple Choice

Regarding research using PET scans and fMRI with patients in a persistent vegetative state, which of the following statements is\are TRUE?

• A)Investigations using fMRI with patients in a persistent vegetative state showed varying degrees of frontal cortical activity in some of the patients.
• B)Some patients in a persistent vegetative state have shown a frontal cortex response to hearing their own names.
• C)When normal individuals and patients in a persistent vegetative state were administered a mildly painful stimulus, PET scans revealed brain activity in the midbrain, thalamus, and somatosensory cortex of both the normal and vegetative subjects.
• D)All of these statements are true.

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Definitions:

Helium Ion

A positively charged helium atom, often resulting from the removal of one electron from the neutral atom.

Bromide Ion

The bromide ion is a negatively charged ion (Br-) that is formed when a bromine atom gains an electron.

Ionic Compound

A chemical compound composed of ions held together by electrostatic forces termed ionic bonding, generally formed between metal and non-metal ions.

Calcium

A soft gray alkaline earth metal, symbol Ca, essential for living organisms, particularly in cell physiology and bone formation.