What is the best physiological explanation as to why a particular area has a low two-point threshold? A greater skin surface area always results in a lower two-point threshold because there is physically more room in which to house sensory receptors. With a low two-point threshold, there is a greater density of sensory receptors to allow for more precise location of the sensation by the somatosensory cortex. OA low threshold suggests a decreased sensation in that area, meaning a wide receptive field on that area of skin.

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