Dr. Lin Liang-ying, a member of the First Behavior Workshop who works in the Department of Psychiatry at the Songde branch of the Taipei City Hospital, explains that mental disabilities and psychiatric disorders both represent impairments of brain function, and therefore have similarities. However, the psychiatric disorders of the moderately and severely mentally disabled rarely appear in epidemiological data because we have a hard time knowing what their internal worlds are like.
「第一行為工作室」成員、任職於台北市立聯合醫院松德院區精神部的林亮吟醫師解釋，智能障礙和精神疾患同屬腦部機能障礙，自然會有共通性，然而，中、重度智障者的精神疾患在流行病學統計上難以進行，原因在於智障者的內在經驗難以偵測。