When Neuroscientists Use PET Scans (Positron Emission Tomography)

question 87

Multiple Choice

When neuroscientists use PET scans (positron emission tomography) ,

• A) they assess the regions of the brain in which blood flow increases while a person is performing a task.
• B) they record the neural impulses from one neuron in the human brain.
• C) they stimulate a brain region in a patient who recently had a stroke or tumor.
• D) they place electrodes on a person's scalp.

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Definitions:

Middle 87.4%

Represents the percentage of data falling in the middle range of a distribution, often referred to in terms of percentile ranks or areas under a curve in statistics.

-1.46 To 1.46

This range might represent values within one standard deviation from the mean in a normally distributed dataset, indicative of central concentration.

Lowest 9%

Indicates the minimum value or percentile, possibly in a collection of data or measurements, standing at 9%.

Z > -1.82

A condition referring to the area under the normal distribution curve to the right of Z = -1.82, indicating values above this Z-score.