Because of new imaging techniques and advances in our understanding of neurophysiology, neurological and psychiatric disorders are increasingly being recognized as disorders of circuit functions in the brain. Using techniques such as DBS, neurosurgeons are able to pinpoint malfunctioning circuits and to recalibrate them.

The evolution of deep brain stimulation for various neuropsychiatric disorders results from advances in structural and functional brain imaging, increased understanding of neurocircuitry of the brain, and improvements in neurosurgical techniques and equipment.

Medical professionals may be reluctant to initiate a discussion about driving with older patients in anticipation of a negative impact on the physician-patient relationship.