Use the following to answer questions :
Refer to the figure below

-How does the figure illustrate the concept of a sensory threshold?
A) Sensory thresholds and sensory codes are essentially the same concept.
B) A stimulus that is strong enough to cause a sensory receptor to fire will not cause the sensory receptor to reach threshold.
C) Stimulus strength is the only sensory modality that affects sensory thresholds.
D) If the stimulus is weak enough, the sensory receptor will not reach threshold and will not produce an action potential.

Question

Use the following to answer questions :
Refer to the figure below
 
-How does the figure illustrate the concept of a sensory threshold?
A) Sensory thresholds and sensory codes are essentially the same concept. 
B) A stimulus that is strong enough to cause a sensory receptor to fire will not cause the sensory receptor to reach threshold. 
C) Stimulus strength is the only sensory modality that affects sensory thresholds. 
D) If the stimulus is weak enough, the sensory receptor will not reach threshold and will not produce an action potential.

Quizplus · Accepted Answer

The figure illustrates the concept of a sensory threshold by showing that if a stimulus is weak enough, the sensory receptor will not reach threshold and will not produce an action potential. This is demonstrated by the fact that the line representing the stimulus is below the threshold line for the first part of the graph, indicating that the stimulus is not strong enough to produce a response from the sensory receptor. Only when the stimulus strength increases above the threshold line does the sensory receptor respond by producing action potentials.

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