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Homunculus

(from the Latin homunculus – “little man, miniature man”) is a distorted view of the human body, based on a neurological “map” of areas and parts of the human brain responsible for processing the motor and/or sensory functions of various parts of the body. Nerve fibers that conduct somatosensory information from all over the body terminate in different areas of the parietal lobe of the cerebral cortex, forming a representative map of the body. Wilder Penfield and his colleagues Edwin Baldry and Theodore Rasmussen are considered the creators of sensory and motor homunculi. They were not the first scientists to attempt to objectify the functions of the human brain with the help of a homunculus. However, they were the first to distinguish between sensory and motor functions and map them separately in the brain, which led to the appearance of two different homunculi. In addition, their drawings and the later drawings created from them have become perhaps the most famous concept maps in modern neuroscience, as they convincingly illustrate the data at a glance.