The Two Neuroimaging Techniques That Are Most Often Used Provide

question 86

Multiple Choice

The two neuroimaging techniques that are most often used provide

• A) detailed images of the anatomical features of the brain and indications of brain activity.
• B) measurements of the diffusion of water molecules in brain tissue.
• C) measures of heart beat and respiration changes in older adults.
• D) evidence of the positivity effect.

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Definitions:

Difference Threshold

The minimum difference in stimulation that a person can detect 50% of the time, also known as the "just noticeable difference."

Auditory Convergence

A phenomenon in which sounds from different sources merge into a single perceived auditory event.

Refractory Threshold

The level of stimulus intensity or the period following a nerve impulse during which a nerve or muscle is unresponsive to further stimulation.

Fovea

A small depression in the retina of the eye where visual acuity is highest, due to the high density of cones (color-receiving cells).