This text investigates the biological and cognitive foundations of human language, specifically addressing how the brain processes and acquires complex linguistic structures. Jean Aitchison, a prominent linguist, utilizes her extensive academic background to synthesize Chomskyan theory with empirical research in developmental psychology. The book presents a framework that evaluates the tension between innate grammatical structures and environmental language acquisition.

Experts frequently cite this work as a foundational introduction for students entering the field of psycholinguistics. Readers often note the clarity of the prose despite the technical density of the subject matter.