PsycINFO provides access to international literature in psychology and related disciplines. Sources indexed and abstracted include 1,800 professional journals and thousands of chapters, books, reports, theses and dissertations. Additionally, there are more than 8 million cited references in 185,000 journal articles, books, and book chapters. The database is enriched with literature from an array of disciplines related to psychology such as psychiatry, education, business, medicine, nursing, pharmacology, law, linguistics, and social work. All records from 1967 to the present are indexed using the Thesaurus of Psychological Index Terms.