Apathy is a common, early, and disabling symptom in dementias such as Alzheimer's disease
(AD) and is characterized by lack of interest and enthusiasm. Both repetitive transcranial
magnetic stimulation (rTMS), a form of non-invasive brain stimulation, and methylphenidate, a
medication, have been shown to improve apathy. This pilot study will investigate rTMS as a
treatment for apathy in AD in individuals receiving methylphenidate and individuals not
receiving medication for apathy.