final exam Flashcards
phases of adolescent growth and sex differences in timing of growth spurt and motor development (girl)
growth spurt at 10 years old, hips broaden, gain fat, slow gradual motor development
phases of adolescent growth and sex differences in timing of growth spurt and motor development (boy)
growth spurt at 12.5, shoulders broaden, gain muscle, lungs/heart increase, dramatic growth in strength/speed
growth spurt initiated by
release of HGH and thryoxine
menarche
age 12.5, first menstration toward end of puberty
spermatozoa
age 13.5, testes penis, first ejaculation
nocturnal emissions
wet dreams, involuntary
primary sex characteristics
reproductive organs, puberty, spermache/menache
secondary sex characteristics
physical maturation, sweat glands, pubic and armpit hair (girls: breasts, boys: facial hair and voice)
timing of puberty
11-14: rapid changes
14-16: puberty nearly complete
16-18: adults appearances
timing of puberty affected by
heredity, nutrition, SES, ethnicity, exercise
changes in oxytocin sensitivity
makes one self-conscious and sensitive to others opinions (mainly girls)
amygdala
increases in volume around 12-14
prefrontal cortex
myelination and synaptic genesis, effective executive function
limbic
outpaces prefrontal cognitive control network; develops before PFC
consequences for timing of puberty for girls and boys (early)
girls: unpopular, low confidence, deviant behavior, dating violence
boys: popular, psychological distress, problem behaviors
consequences for timing of puberty for girls and boys (late)
girls: popular, social, positive body image
boys: unpopular, difficulties
sleep (delayed sleep preference)
biological preference to go to bed; triggered by melatonin
eating disorders
anorexia: starve themselves
bulimia: binge eating then purging
binge eating: too much food, most common
how are adolescents being injured? major cause of death?
firearms; previously vehicle accidents
sexual activity: effect on culture
early puberty, little religion, increased sexual activity
how to talk to kids about sex
convos reduce sexual risk taking!
-warm parent communication
-more likely to use birth control
-mothers have more success
condom usage among teens
18% don’t use contraceptives, rarely for oral sex
adolescents use has gone up in recent years
-teen pregnancy, SES outcomes, school dropouts
-increase STI rates in 18-24 year olds (HPV most common)
-arkansas has highest rate
adolescent substance abuse
-minimal experience typically psychologically healthy
-minority of teens move from use to abuse (genetic factors, who starts earlier)
-how do we prevent? effective parenting, resisting peer pressure
Piaget: formal operations
at 11 years old, develop capacity for abstract, logical, and systematic reasoning