What is the engine map topography?

Motor map topography describes how parts of the cerebral motor corte are related to certain parts of the body. This information is found by stimulating different parts of the motor cortex and recording the physical reactions created by the body. When a place on the bark is stimulated, the specific muscle group reacts by movement. This shows which area of ​​the brain is responsible for moving these muscles. Together, many answers provide a motor cortex map. Through the topography of the motor map, each part of the motor cortex can be associated with a part of the body that is responsible for the inspection. Using electrodes to stimulate the surface of the brain, scientists were able to produce motion maps of the bark. Topography of the motor map revealed that some parts of the body capable of accurate movements occupy a disproportionate amount space of the motor cortex compared to their size.

The motor cortex illustrations show greater representation of more accurate muscle groups. For exampled while the fingers are small, part of the bark responsible for their movement is usually larger than weapons. The thumb itself excels in the amount of motor cortex, which is associated with it. Similarly, the topography of the motor map shows that people are also better illustrated by the face, lips and language that are essential for speech and expression than some major parts of the body. If the human body was drawn according to the motor cortex map, it would have large lips, hands and legs, but a thin suitcase and very thin arms and legs.

Motor map topography has played an important role in discovering that the brain can change during adult life. This was first discovered in an animal experiments where animals were encouraged to create specific tasks. Later tests revealed that long -term habits have changed the amount of motor cortex dedicated to this type of experiment.

This discovery had important consequences for the treatment of brain injury in humans. For example, a stroke may cause part of the motor cortex to lose its ability to function, tPatients are not able to effectively move some parts of the body. Specific training exercises have been developed to help hire other parts of the brain to take over, allowing the patient to regain normal functioning.