The fact that fear may increase your sensitivity to an almost imperceptible pain stimulus is of most relevance to

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The fact that fear may increase sensitivity to a pain stimulus speaks to the idea of signal detection theory, which focuses on a person's ability to detect a particular stimulus against background noise or other stimuli. Fear may increase a person's sensitivity to pain by causing them to pay closer attention to potential pain stimuli, and to be more likely to detect them even if they are subtle or faint.

The Fact That Fear May Increase Your Sensitivity to an Almost