Describe the Changes That Occur in Skin with Age

question 13

Essay

Describe the changes that occur in skin with age.

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Definitions:

Just-noticeable Difference

The smallest change in the intensity of a stimulus that can be detected by a sensory system.

Sensory Adaptation

A decrease in sensitivity to a constant level of stimulation.

Absolute Threshold

The smallest amount of physical stimulation required to detect a sensory input half of the time it is present.

Signal Detection

A theory and method for quantifying the ability to differentiate between information-bearing patterns and random patterns that distract from the information.