Roll Is Conducting a Research Study

question 3

Multiple Choice

Roll is conducting a research study. She wants to measure the physical connectivity in the research participants' brains by imaging their white matter. Which of the following methods will she use?

• A) diffusion tensor imaging (DTI)
• B) MRI spectroscopy
• C) functional magnetic resonance imaging (fMRI)
• D) computed tomography (CT)

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Definitions:

Lightness Constancy

Refers to the ability of the human visual system to perceive the whiteness, grayness, or blackness of objects as constant under varying levels of illumination.

Perceptual Set

A mental predisposition to perceive one thing and not another, influenced by expectations, emotions, culture, and previous experiences.

Ponzo Illusion

A visual illusion where two horizontal lines of identical length appear to be of different lengths because of converging parallel lines.

Basal Metabolic Rate

The rate at which the body uses energy while at rest to maintain vital functions such as breathing and keeping warm.