When developmental psychologists speak of the development of motor behavior, they are referring to changes in behaviors such as sitting, crawling, standing, walking, reaching, and grasping. These behaviors are obviously important because it is through them that humans mechanically act upon and interact with their environment. In this chapter, two broad (structural) categories of motor behavior will be considered: body control, including postural control and locomotion, and manual control (prehension), including reaching and grasping.
KeywordsPostural Control Prone Position Manual Control Motor Behavior Operant Conditioning
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