Contribution of transcranial magnetic stimulation to assessment of brain connectivity and networks

The brain operates in networks to carry out its function. At one level, information passes between neurons via synapses, and, at another level, information passes from region to region. Visual information flows from occipital areas to the parietal areas and then to the motor areas to properly move the arm and shape the hand to pick up an object. Olfactory information from the smell of coffee integrates with pleasant limbic memories to drive a decision to have another cup. If we want to understand how the brain works, we need to know its anatomical connectivity and what pathways are utilized in different functional tasks.

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