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Cortical homunculus
Distorted model of the body corresponding to sensory and motor nerve density / From Wikipedia, the free encyclopedia
A cortical homunculus (from Latin homunculus 'little man, miniature human'[1][2]) is a distorted representation of the human body, based on a neurological "map" of the areas and proportions of the human brain dedicated to processing motor functions, and/ or sensory functions, for different parts of the body. Nerve fibres—conducting somatosensory information from all over the body—terminate in various areas of the parietal lobe in the cerebral cortex, forming a representational map of the body.
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Findings from the 2010s and early 2020s began to call this interpretation into question, and research is ongoing in this field.[3]