Infants progressively show more complex motor behaviors, which is primarily the result of

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Quizplus · Accepted Answer

The maturation of the brain drives the development of more complex motor behaviors in infants, as the brain's neural connections and pathways become more developed and refined over time. While strengthening of muscles and modeling by adults may contribute to some degree, they are not the primary drivers of this developmental process. Fine-tuning of sensory systems may also play a role, but it is not directly related to the development of motor behaviors.

Infants Progressively Show More Complex Motor Behaviors, Which Is Primarily