Child specialists say that by the age of eight months, the child has already learned to recognize the sounds of his native language, formed a close bond with his parents, developed perceptual skills, and begun to explore the world around him.
علاوه بر این ،‏ قدرت درکش شکل گرفته و کاوش در محیط اطرافش را آغاز نموده است .‏