The thesaurus in PsycINFO can help you find keywords and descriptors that the database will recognize. Essentially, the thesaurus shows you which terms are in the database's vocabulary. You can search for keywords the thesaurus will tell you which terms to use in order to effectively find sources. It will also show you related terms. Watch this video for more about how to use the thesaurus and why.

This video talks more about building your search using terms you find in the thesaurus. It also discusses what to do if the terms you need are not in the thesaurus.