Ch. 10 Physical Development in Adolescence Flashcards
Adolescence
lifestage that begins at puberty and ends with high school graduation (~18 yrs old)
Cohort effect
adolescence begins when the majority of the cohort have begun puberty
includes adolescents who had a large or early puberty
Magnetic Resonance Imaging (MRI)
provide very accurate pictures of the human brain
functional MRI (fMRI)
structure and relative levels of activity in the brain
Gray matter
information processing areas
cell bodies and extra cellular space
levels off in adolescence
White matter
bundles of myelinated nerve cell projections
connect gray matter
continually develop
Diffusion Tensor Imaging (DTI)
assesses brain connectivity
view changes in white matter
Traumatic Brain Injury (TBI)
brain dysfunction chased by a traumatic force, usually a blow to the head
concussion
headache, confusion
Puberty
process of physical changes through which a child’s body matured and is capable of sexual reproduction
libido stimulation and growth
Primary sexual characteristics
directly involved in reproduction
spermarche and menarche
Secondary sexual characteristics
physical changes unrelated to reproduction
breasts, pubic hair, voice changes, acne
Precocious puberty
primary sexual change occurs before age 9 and secondary before age 8
1 in 5,000 children
Affects females more than males
Disordered eating
restricted dieting, bingeing, and purging in a less frequent or severe way than a disorder
Eating disorder
psychological disorder characterized by abnormal and disturbed eating habits
Anorexia Nervosa
low weight, obsession about weight, disturbance in body perception, amenorrhea, food restriction
