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The sensorimotor stage is the first of four stages of cognitive development identified by psychologist Jean Piaget. This stage spans from birth to approximately two years of age. During this period, infants learn about the world through their senses and motor actions, such as sucking, grasping, and looking. A key development within this stage is the acquisition of object permanence, the understanding that objects continue to exist even when they are out of sight. This marks a significant step in a child's cognitive development, moving from a world of immediate sensory experience to one where mental representations can be formed.1234

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