Psycholinguistics is the study of the processes behind the production, comprehension, and acquisition of language.The mental lexicon is organized in various ways, including Lexical retrieval for production and comprehension, and the ability to combine words into phrases and sentences.The lexicon is based on rule-based and template-based approaches, with the ability to evaluate the message in context and successful expression and comprehension of a message being crucial for effective communication.Language is a communication system that is rule-driven, symbolic, hierarchically structured, creative, and species-specific.