amount of time they will learn quickly, but also only retain the information into their short-term memory. Just like studying for an exam; if a student tries to learn everything the night before, it will not stick in the long run. If a person studies a skill for a shorter duration of time, but more frequently and long-term, their brain will retain this information much longer as it is stored in the long-term memory. Functional and structural studies of the brain have revealed a vast interconnectivity between diverse regions of the cerebral cortex. For example, large numbers of axons interconnect the posterior sensory areas serving vision, audition, and touch with anterior motor regions. Constant communication between sensation and movement makes sense, because to execute smooth movement through the environment, movement must be continuously integrated with knowledge about one's surroundings obtained via sensory perception. The cerebral cortex plays a role in allowing humans to do this. The cerebellum is critical to the ability for a human or animal to be able to regulate movement. This area of the brain wraps around the brain stem and is very densely packed with neurons and neural connections. This part of the brain is involved in timing as well as movement. It assists in predicting events, especially in the formation, execution, and timing of conditioned responses. The cerebellum plays a very important role in all forms of kinesthetic learning and motor function. For a ballerina, it is important to be able to control their movements and time it exactly right for their routine. For a football player it is important to be able to regulate movement when running throwing, and being able to have control over where the ball goes as well as the timing of it. All three of these important systems in the brain function together as a team, one not being more important than the other. They work together to allow for responding to sensory events, timing, controlling physical actions, and more. However, it is important to remember that unless a person is actively practicing, these parts of the brain won't help them get to their full potential. Alterations in the brain that occur during learning seem to make the nerve cells more efficient or powerful. Studies have shown that animals raised in complex environments have a greater volume of capillaries per nerve cell—and therefore a greater supply of blood to the