After a severe head injury, Mary has exceptional difficulty setting goals and in other ways planning her actions. Without knowing anything else about Mary’s injury, you might reasonably conclude that it affected her:

Learning changes the brain's physical structure, which alters its functional organization. Learning specific tasks causes localized changes in the areas of the brain that are appropriate to the task. Some examples of brain changes that occur during learning include: Synapse formation, Blood vessel formation, Weight and thickness changes in the cerebral cortex, and Nerve cells become more efficient or powerful.  The brain is made up of neurons, glial cells, blood vessels, and many other cells organized into specialized areas. Some regions have functions focused on special types of learning... Show more

Learning changes the brain's physical structure, which alters its functional organization. Learning specific tasks causes localized changes in the areas of the brain that are appropriate to the task.

Some examples of brain changes that occur during learning include: Synapse formation, Blood vessel formation, Weight and thickness changes in the cerebral cortex, and Nerve cells become more efficient or powerful. 

The brain is made up of neurons, glial cells, blood vessels, and many other cells organized into specialized areas. Some regions have functions focused on special types of learning such as language, face recognition, motor activity, and spatial recognition. 
Learning involves rewiring and strengthening connections between neurons, the cells in the brain that are most important for learning. These connections are made through synapses. The brain has about 86 billion neurons, and each neuron can be connected to many thousands of other neurons. 
As the brain matures, more and more fibers grow and the brain becomes increasingly interconnected. These interconnected networks of neurons are very important to the formation of memories and the connection of new learning to previous learning. 

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