RT Book, Section A1 Risen, Sarah A1 Vinson, Sherry Sellers A2 Kline, Mark W. SR Print(0) ID 1182924442 T1 Global Developmental Delay and Intellectual Disability T2 Rudolph's Pediatrics, 23e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259588594 LK accesspediatrics.mhmedical.com/content.aspx?aid=1182924442 RD 2024/04/23 AB Observation over centuries confirms that infants and children learn developmental skills in a predictable order within a predictable age range. These skills occur in the following neurodevelopmental streams: neuromotor (including gross motor, fine motor, and oral motor), neurocognitive (including language, social, nonverbal/visual-motor problem solving, and adaptive), and neurobehavior (including attention and activity/impulsivity). Gross motor skills include rolling over, crawling, and walking, and progressing to running, jumping, and skipping; fine motor skills include picking up an item, first with a full fist and then progressing to doing the same with a mature pincer grasp; oral motor skills include speech articulation and feeding. Nonverbal/visual-motor problem-solving skills include determining how to obtain an item that is out of reach or determining which of two containers is smaller. Expressive language skills include cooing, babbling, and progressing to saying words, phrases, and sentences. Receptive language skills include following a one-step command given with a gesture and progressing to following nongestured commands. Social skills include reciprocally smiling and progressing to interactive play with others.