Patients will be randomized 2:1 ratio to receive either the helmet active device or the helmet sham matched device. EACH device will be delivered with a highly visible tag with either an 'A' or 'B' respective to the study group the patient was randomized to.

Patients will be randomized 2:1 ratio to receive either the helmet active device or the helmet sham matched device. EACH device will be delivered with a highly visible tag with either an 'A' or 'B' respective to the study group the patient was randomized to.

The portable device covers the head and weighs about 3.5 lb., and is made of light-weight, durable plastic, it is placed on the head with eye panels facing forward. Elastic straps holding the arrays together easily expand to conform to each subjects' head. Patients may notice slight warming of scalp after usage. This warming effect is similar to wearing a regular motorcycle helmet for a similar duration.

Mini Mental State Exam will be performed in beginning of the study (before first treatment), in the middle of the treatment (in 4 weeks) and in the end of treatment (in the end of 8 weeks). This quick assessment will be able to score assessed individuals using 0-30 scoring range. Collected scores will be compared at different time points and any numerical change in score will be evaluated.

ADAS-Cog test will be performed in beginning of the study (before first treatment), in the middle of the treatment (in 4 weeks) and in the end of treatment (in the end of 8 weeks) to measure cognition. This comprehensive test will measure patient's ability of language and memory. Test consist of 11 parts and will help to assess baseline and determine cognitive change over period of treatment using patient's ability to answer questions and given score.

QEEG measurement will be performed in beginning of the study (before first treatment), in the middle of the treatment (in 4 weeks) and in the end of treatment (in the end of 8 weeks). This measurement will use modern analytic software to process activity of the brain during cognitive task in the forms of electrical signals received from the surface of the scalp. Analytical software uses algorithms to assess recorded brain impulses and evaluate brain function, helping to track changes in the brain function due to treatment.

Waveforms of EEG being assessed:

1. Delta frequencies (1-4 HZ) are produced during sleep are widespread in the frontal central region. Delta is necessary for sleep and stillness.
2. Theta frequencies (4-8 HZ) are associated with selective attention, retrieving newly learned information, and preceding sleep. Theta aids creativity and problem solving.
3. Alpha frequencies (8-12 HZ) appear in the posterior when the eyes are closed. It is associated with idling and