PSYC 420 Lecture Notes - Lecture 20: Family Therapy, Libido, Bulimia Nervosa
Document Summary
Girls: growth spurt sooner (10-16), hips broaden, increase in fat. Boys: growth spurt later (12. 5-17. 5 years), shoulders broaden, legs broaden, increase in muscle. Secondary sexual characteristics: visible changes that signal sexual maturity. Girls: breast, boys: facial hair and voice change, both: underarms and pubic hair. Adolescent moodiness: worse mood during the week and better mood during the weekend, middle schoolers show fewer mood changes than high schoolers thru the week. Synaptic pruning continues: prefrontal cortex, advances in : attention, planning, integrating info, self-regulation. Expansion of synaptic connections, myelination: link cortical regions. Neurotransmitter response changes: more sensitive to excitatory messages: this causes increased responsiveness to stress and pleasure. Need ~9 hours, but go to bed later due to phase delay (light at night wut) and social habits. Lack of sleep: depressed mood, poor school achievement, high-risk behavior. More conflict, less closeness ( preparing child for physical distance) Similar across north american subcultures (no cultural differences, happens in all)
