sensory homunculus

The sensory homunculus is a visual representation of how different parts of the body perceive touch and other sensations. It illustrates the brain's sensory map where areas corresponding to body parts are scaled according to their sensory sensitivity. For example, the hands and face are depicted as much larger than the back, indicating that they have more nerve endings and are more sensitive to touch. This model helps us understand how the brain processes sensory information and highlights the importance of each body part in our experience of the world.