Case Studies That Involve Testing New Treatments on a Few

question 25

Multiple Choice

Case studies that involve testing new treatments on a few people to judge their effect and safety are known as

• A)external studies.
• B)pilot studies.
• C)experiments.
• D)none of these describe this phenomenon.

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Definitions:

Ganglion Cells

Neurons located in the retina that process visual information and send it to the brain.

Optic Nerve

The cranial nerve that transmits visual information from the retina to the brain.

Just Noticeable Threshold

The minimum level of stimulus intensity needed for a person to detect its presence or a change in its presence, approximately 50% of the time it is present.

Physical Stimulation

Any external or internal stimulus that elicits a sensory or physiological response in the body.