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cortical map
This term is a specialized neuroscientific concept used to describe the spatial organization of the brain. It refers to the way the cerebral cortex organizes sensory or motor information, ensuring that the physical proximity of body parts is mirrored by the proximity of neurons in the brain. This organization is often referred to as somatotopy.
In a clinical or research context, the term is used to explain why certain body parts, such as the lips or fingertips, occupy a larger area of the brain than others. This disproportionate allocation reflects the higher density of sensory receptors or the need for finer motor control in those specific regions.
Meanings
A topographic representation of a specific sensory or motor function within the cerebral cortex, where adjacent areas of the body or sensory input are mapped to adjacent neurons in the brain.
The primary somatosensory cortical map shows a disproportionate amount of space dedicated to the fingertips and lips.