The stage is defined by the young child's dependence on his or her senses to explore the world

The sensorimotor stage is defined by the young child's dependence on his or her senses to explore the world. It was Jean Piaget, a Swiss Psychologist, who dubbed this stage as the period of growth of development of a child where stimulation of the senses or sensory stimulation is provided by some activities that need children to use their five senses. This is particularly vital during the first 18 months to 24 months of the child's life.