It has been estimated that 20% of individuals above the age of 60 develop a certain form of dementia, with Alzheimer’s disease (AD) being the most common is a neuro-degenerative disorder, characterized by a gradual cognitive decline that is likely a result of the accumulation of beta- amyloid plaques and tau neurofibrillary tangles occurring at the cellular level within the brain. Mild cognitive impairment (MCI) is known as a transitional state to AD. MCI characterizes a memory deficit that extends beyond what is expected due to normal aging in healthy elderly populations. It is critical to have reliable early-diagnostic tools for MCI since the brain damage resulting from AD is irreversible. Early detection of MCI and AD symptoms provides the opportunity to begin various interventions, such as medications and cognitive rehabilitation therapies, for those who are affected. The early detection of MCI and AD symptoms is likely to increase quality of life before more serious cognitive deficits ensue.