Lexical representation is a research area in the field of psycholinguistics that focuses on how words are stored, processed, and accessed in the human brain. It examines how words are represented in the mental lexicon, the mental dictionary of words that individuals possess. This research area explores questions such as how words are organized in the mental lexicon, how words are retrieved and recognized during language processing, and how lexical representations may be influenced by factors such as frequency, familiarity, and semantic relationships. Lexical representation is an important aspect of understanding language comprehension and production in the human mind.