Individuals with high-functioning autism are characterized by almost normal language ability and intelligence as well as social, pragmatic impairments. Before the 1980s, limited research was focused on this disorder. This paper reviews previous research on this underserved population with a hope that we are able to gain some insights from existing literature and seek directions for future research. The definition and diagnostic criteria for high-functioning autism are addressed first, and then followed by an overview of the characteristics of these individuals and its relationship with Aspergers syndrome. Finally, research on the social/emotional well being of individuals with this disorder will be introduced as will research on theory of mind and other related research in the fields of neuroscience and cognitive science.