A person may be involuntarily committed to a hospital or institution in Ohio under two similar yet distinct statutory schemes. Revised Code Chapter 5122 deals with hospitalization of persons adjudged “mentally ill” and Chapter 5123covers “mentally retarded” persons. The term “mentally ill” is defined in R.C. Section 5122.01(A) as “a substantial disorder of thought, mood, perception, orientation, or memory that grossly impairs judgment, behavior, capacity to recognize reality, or ability to meet the ordinary demands of life”. “Mentally retarded” refers to “a person having significantly subaverage intellectual functioning existing concurrently with deficiencies in adaptive behavior, manifested during the developmental period.”