S/PS/10. Discuss the evidence that is available to support the theory of brain specialisation and what psychological advantages such specialisation may have.

This essay examines the development of language and speech from the late 19th century to the present day. Each development is acknowledged and compared to the experimental and scientific evidence available at the time, to attempt to establish a connection between communication and brain specialisation. The work discusses the advantages that have been gained and weighs them against the moral and ethical dilemmas that psychologists face when dealing with living, and often disabled, patients, and concludes with an argument that the benefit of further research should be assessed against such problems.