Its final substage sees a shift from the namesake plane to the symbolic plane.
Its final substage sees a shift from the namesake plane to the symbolic plane. Members in its fourth substage are prone to making the A-not-B error, in which people search for an object in location A despite seeing it hidden in location B. Members of this stage are unable to understand invisible displacement, and begin to use circular reactions instead of relying on reflexes. Towards the end of this stage, children become able to accommodate their schemas to new information, and understand object permanence. Occurring until an infant is two years old, and followed by the preoperational stage, FTP, name this first stage of cognitive development proposed by Jean Piaget.
Its final substage sees a shift from the namesake plane to the symbolic plane.
{sensorimotor} stage