As 4-month-old Nina's father picks her up,Nina begins to make sucking noises even though there is no breast or bottle present.From a Piagetian perspective,this is best explained as

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This behavior is best explained as a habit according to Piaget's theory. In the context of Piaget's stages of cognitive development, infants initially react to the world through reflexes. Over time, through repetition and reinforcement, these reflexes can become habits. Nina's sucking noises in response to being picked up by her father, even in the absence of a breast or bottle, indicate that this response has become a habitual action rather than a reflexive action directly triggered by the presence of food.

As 4-Month-Old Nina's Father Picks Her Up,Nina Begins to Make