Speech and language therapy is a small profession. It only reached its golden jubilee year in 1995 and misleadingly, remains for many highly associated with the elocution training in which the profession had its genesis. In the last few years the greatest developments have been in the area of cognitive neuropsychological and functional (pragmatic) models for the assessment and management of language and communication. It is the premise of this article that speech and language therapists are likely to prove flexible and valuable members of the multidisciplinary team, with the ability to contribute a further dimension to care planning – that of specific clinical input to the wide range of language, speech and communication impairments associated with the major mental illnesses (Gravell & France, 1991).