What is the age range for Piaget's sensorimotor stage?

The sensorimotor stage is the first stage of Jean Piaget's theory of cognitive development, which encompasses an important period in a child's early life. This stage occurs from birth to around 2 years of age. During this time, infants learn about the world through their senses and actions. They explore their environment through movement and manipulation, developing foundational skills such as object permanence—the understanding that objects continue to exist even when they cannot be seen. This stage is critical for cognitive development, as children are actively engaging with their surroundings and forming the basis for future cognitive growth. The other stages of Piaget's theory—preoperational, concrete operational, and formal operational—cover different age ranges that follow the sensorimotor stage.