Final answer:
Multisensory learning enhances motor function by using regions like the posterior parietal cortex to integrate sensory feedback and coordinate movements, which can lead to improved motor skills and better execution of complex tasks.
Step-by-step explanation:
Multi-sensory learning improves motor function primarily by integrating sensory and motor information in complex ways, leading to better coordination and execution of movements. The posterior parietal cortex, located between the somatosensory cortex and visual cortex regions, plays a crucial role in the coordination of visual and motor functions. As an example, when reaching to pick up a glass, the integration of proprioceptive feedback and the weight of the glass based on its contents influence the movements executed. This coordination and multi-sensory integration facilitate complex motor skills like grasping objects, texting, and eye movements, which improve over time through practice and sensory input. The brain regions that integrate multisensory information are constantly active during such tasks, using a significant amount of energy and contributing to the learning of new motor skills or the honing of existing ones.