Question

Natalia is washing her hands and adjusts the faucet handle until the water feels just slightly hotter than it did before. Natalia's adjustment until she feels a difference is an example of a. a subliminal stimulus b. an absolute threshold. c. a difference threshold d. signal detection. e. Weber's law.

   Natalia is washing her hands and adjusts the faucet handle until the water feels just slightly hotter than it did before. Natalia's adjustment until she feels a difference is an example of
a. a subliminal stimulus
b. an absolute threshold.
c. a difference threshold
d. signal detection.
e. Weber's law.

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Myers' Psychology for AP

Myers' Psychology for AP

David G. Myers 2nd Edition

Chapter 16, Problem 4

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A difference threshold, also known as the just noticeable difference (jnd), is the minimum amount of change in a stimulus that can be detected half of the time. Show more…

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Natalia is washing her hands and adjusts the faucet handle until the water feels just slightly hotter than it did before. Natalia's adjustment until she feels a difference is an example of a. a subliminal stimulus b. an absolute threshold. c. a difference threshold d. signal detection. e. Weber's law.

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Key Concepts

Difference Threshold

This concept refers to the smallest change in a stimulus that can be detected. It is the minimum difference in intensity between two stimuli necessary for a person to perceive a change, often called the just noticeable difference (JND).

Weber's Law

This law explains that the difference threshold is proportional to the original level of stimulus intensity, meaning that a larger stimulus requires a greater change for the difference to be noticed. It underpins many findings in the area of sensory perception and helps quantify how changes in stimulus intensity are perceived.

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