Positron Emission Tomography, a Method Used to Assess the Nervous

question 14

Multiple Choice

Positron emission tomography, a method used to assess the nervous system, is:

• A) A simple, painless test that measures the electrical activity of the brain and aids in the location and treatment of disorders
• B) A procedure used to assess cerebrospinal fluid for blood, foreign cells, infection, and chemical imbalances
• C) A type of x-ray of the interior of the spinal cord used to detect growths or displacement of the vertebral column
• D) A test that stimulates nerves on a surface electrode placed on the skin and records the time needed to conduct the information to another electrode
• E) A type of CT using radioactive isotopes introduced into brain cells to detect disorders that do not cause structural changes

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Definitions:

Withdrawal

The act of removing oneself from participation or involvement in a particular activity, situation, or substance use.

Dyad

The smallest social group consisting of two persons, involved in a continuous interaction, forming a basic unit of social organization.

Coalition

An alliance for combined action, especially a temporary alliance of political parties forming a government or of states.

Wellman's Research

Pertains to the work of Barry Wellman, a sociologist known for his studies on social networks, community sociology, and the impact of the internet on society.