1) **Sensorimotor Stage**- From birth to almost 2 years old, Infants take in the world through their sensory and motor interactions with objects
Ex. Through looking, hearing, touching, mouthing, and grasping
(Developmental Phenomena during stage):
* Before the age of 6, infants lack **Object Permanence**- the awareness that objects still exist even when not seen. By 8 months, infants begin exhibiting memory for things not seen
B) Stranger Anxiety