Which period focuses on the emergence of voluntary movement after reflex inhibition?

The period that focuses on the emergence of voluntary movement after reflex inhibition is the Preadapted period. During this stage, infants begin to develop purposeful movement as they transition from reflexive actions to more controlled voluntary movements. This is characterized by the gradual inhibition of reflexes and the emergence of movements that are adaptable and vary according to the infant's environment and goals.

In the context of motor development, the Preadapted period typically occurs around the age of 2 to 12 months, where infants learn to achieve milestones like rolling over, sitting, crawling, and eventually standing. These movements are crucial as they lay the foundation for more complex motor skills in later stages.

The other periods, while significant in the motor development timeline, do not focus specifically on this transition from reflexive to voluntary movement. The Reflexive period involves the initial reflexive responses to stimuli, the Skillful period refers to the refinement of motor skills, and the Compensation period deals with adaptations that occur due to injury or age-related changes in motor function. Understanding this progression is essential for comprehending how infants develop their movement capabilities over time.