Language, a hallmark of human cognition, is a complex and universal tool for conveying thoughts and ideas. This chapter navigates the intricate landscape of language development, spanning its various dimensions. We begin by dissecting language into its components, be it spoken or signed, and explore its dual nature – both specific and universal. The chapter illuminates the brains remarkable capacity to derive meaning from linguistic input, pinpointing the neural structures underpinning language comprehension and production. Distinguishing between language quantity and quality, we delve into the role of contingent learning and experiential adaptation in molding linguistic abilities. Additionally, we ponder the evolutionary origins of language, contemplating its exclusive human attribute. Drawing from a diverse pool of research, including neuroimaging, behavioral assessments, and developmental studies, this chapter offers a comprehensive view of language development. It underscores the profound influence of gene–environment interactions in enabling infants to acquire language organically, without explicit instruction.
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