The commencement of a program of education or special restorative training under this chapter shall be a bar (1) to subsequent payments of compensation, dependency and indemnity compensation, or pension based on the death of a parent to an eligible person over the age of eighteen by reason of pursuing a course in an educational institution, or (2) to increased rates, or additional amounts, of compensation, dependency and indemnity compensation, or pension because of such a person whether eligibility is based upon the death or upon the total permanent disability of the parent.