The Minimum Intensity of Physical Stimulation Required to Produce Any

question 173

Multiple Choice

The minimum intensity of physical stimulation required to produce any sensations at all in a person is the ________.

• A) absolute threshold
• B) difference threshold
• C) minimum threshold
• D) noticeable threshold

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Definitions:

Adenosine

A chemical found in the body that plays a role in promoting sleep and suppressing arousal, and is also a component of RNA.

Acetylcholine

A neurotransmitter in the nervous system that plays a critical role in muscle contraction and the modulation of alertness, memory, and learning.

Norepinephrine

A neurotransmitter and hormone important in the body's response to stress, affecting attention, heart rate, and other physiological functions.

Histamine

An organic nitrogenous compound involved in local immune responses, as well as regulating physiological functions in the gut and acting as a neurotransmitter.