Estágio 1 do Desenvolvimento Cognitivo de Piaget

Piaget's first stage of cognitive development is the sensorimotor stage, which spans from birth to approximately two years.

During this stage, infants learn about the world by linking sensory input with motor actions. For example, infants explore objects by placing them in their mouths to determine if they are edible. As their grasping ability improves, they may shake or bang objects to see if they produce sounds.

This enables them to understand their environment through active exploration.

Between 5 and 8 months of age, infants develop object permanence—the understanding that objects continue to exist even when they are not directly seen, heard, or touched.

Simultaneously, infants also start to exhibit stranger anxiety, a response characterized by fear of unfamiliar people. They express this fear by crying, turning away, clinging to their caregiver, or reaching for familiar faces like their parents.

This anxiety occurs when the infant cannot assimilate the stranger into a familiar schema.