Final answer:
The Brodmann's areas map in the brain demonstrates locations of similar functions in the cerebral cortex, based on the cellular composition and arrangement, and is relevant for neuroscience research.
Step-by-step explanation:
The Brodmann's areas map in the brain shows clusters of similar functions in the cerebral cortex.
Brodmann's map is a way of describing the cortex of the brain based on its cytoarchitecture. These distinct regions were defined by the anatomist Korbinian Brodmann in the early 20th century, and they are still widely used today to identify different functional areas of the brain. This map is critical for understanding where certain brain functions take place, such as speech or motor control. The areas are numbered and each number corresponds to a region with its unique cellular composition, which often relates to its special role in brain function. For example, certain Brodmann areas are responsible for sensory processing, while others play a part in cognitive functions. This map is especially useful in neuroscience research and clinical diagnoses. Moreover, it's important to mention that the brain-body map located in the brain's cortex is not proportional, with some body parts such as the fingers and face occupying more space on the map due to their sensitivity.