Infants are young children who are typically under one year old. They are at an early stage of development characterized by rapid growth and acquiring fundamental skills such as motor control, perception, and social interaction.
Cognitive development refers to changes in thinking abilities such as memory, problem-solving, attention span, and perception that occur throughout infancy and childhood.
According to Piaget's theory of cognitive development, the sensorimotor stage is the first stage that occurs from birth until about 2 years old when infants explore their environment using their senses.
Imitation is the act of copying or replicating the actions or behaviors of others. Infants often learn new skills through imitation, such as facial expressions and gestures.