The area on S1 associated with the thumb is as large as the area for the forearm. This is an example of _____.

Question

Quizplus · Accepted Answer

The phenomenon described is known as cortical magnification, which is the disproportionate representation of certain body parts in the somatosensory cortex, based on their degree of sensitivity and importance. The thumb, which is a crucial digit for precision and dexterity, has a larger representation in S1 than other parts of the body, such as the forearm, which are less sensitive and less frequently used for fine motor skills. Sensory substitution refers to using one sense (such as touch) to compensate for another sense (such as vision) that is impaired or lost. Braille projection is a concept in which a braille reading device addresses different areas of the skin, rather than individual fingers. The analgesic inversion principle is not a recognized term in neuroscience.

The Area on S1 Associated with the Thumb Is as Large