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The Penfield Homunculus is a visual map illustrating how different parts of the human body are represented on the brain's somatosensory cortex, with areas like the hands and face appearing disproportionately large due to their higher sensitivity and motor control. This concept, derived from electrical stimulation experiments, highlights the brain's uneven allocation of resources, making it a key tool in understanding neurological disorders and brain function in modern neuroscience.
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