TY - CHAP M1 - Book, Section TI - Chapter 84. Hyperactivity and Inattention A1 - Stein, Martin T. A1 - Reiff, Michael I. A2 - Rudolph, Colin D. A2 - Rudolph, Abraham M. A2 - Lister, George E. A2 - First, Lewis R. A2 - Gershon, Anne A. PY - 2011 T2 - Rudolph's Pediatrics, 22e AB - A high level of activity and short attention span are part of normal development in infants and toddlers. Many typically developing preschool children continue to manifest these same characteristics. When they develop impulse control around 4 years of age, overactive and distractible behaviors diminish. Attention span, activity level, persistence, and adaptability to change also reflect a child’s temperament or behavioral style. These traits may affect learning and social interactions when they are discordant with expectations of the child’s environment—of teachers, parents, and peers. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/24 UR - accesspediatrics.mhmedical.com/content.aspx?aid=6738106 ER -