PSY 2301 Chapter 11: Physical and Cognitive Development in Adolescence

• School: Temple University
• Department: Psychology
• Course: PSY 2301
• Professor: Ronald D.Taylor

Document Summary

Adolescence: the transitional period between childhood and adulthood. 13-15 years old cerebral cortex becomes thicker neuronal pathways are more e cient more energy is produced and used takes part mostly in places that control spatial perception and motor functions. 17 years old to early adulthood frontal lobes of cerebral cortex are the focus of development. Bers are thicker and denser boys gain more muscle/strength. 40% of body mass is muscle in boys. 24% of body mass is muscle in girls di erence can be largely accountable by hormone di erences heart and lungs increases in size heart rate drop changes are more marked in boys than girls. 10% experience menarche earlier than age 11 more than 90% experience menarche by age 14. Sexual development in boys development of facial hair and lowering of voice occurs near end secular trend less dramatic in boys than in girls.