ch8 -development

Question 1

developmental psychology

Answer 1

the study of patterns of growth and change that occur throughout life.

Question 2

maturation

Answer 2

the unfolding of biologicall predetermined patters of behavior

Question 2

interactionist position on nature vs nurture

Answer 2

developmental psychologists believe it is a combination of hereditary and environmental factors that influences development.

Question 3

cross sectional research

Answer 3

compares people of different ages at the same point in time.
provides information about differences in development between different age groups.

differences among groups of people

Question 4

cohort

Answer 4

a group of people who grow up at similar times in similar places and in similar conditions.

Question 5

longitudinal research

Answer 5

traces the behavior of one or more participants as the participants age.

change in behavior over time.

Question 6

sequential research

Answer 6

combines cross sectional and longitudinal approaches.
examines a number of different age groups at several points in time.

Question 7

conception

Answer 7

when sperm penetrates egg

Question 8

zygote

Answer 8

single celled entity after egg becomes fertilized by sperm

Question 9

germinal period

Answer 9

first two weeks of zygote development
3 days 32 cells
1 week 100-150 cells

Question 10

embryonic period

Answer 10

weeks 2-8 of human development
no longer zygote, now embryo
grows 10k times larger by week 4, and 1/5 of an inch
rudimentary heart beat
brain and intestinal tract
week8 inch long, discernable arms legs and face

Question 11

fetal period

Answer 11

week 8 to birth
no longer embryo now fetus
16-18 weeks, mother an feel movements
hair grows face forms major organs function

Question 12

age of viability

Answer 12

22 weeks
the point in which a fetus can survive if born prematurely
24 weeks, many newborn characteristics

Question 13

sensitive/critical periods

Answer 13

time when organisms are particularly susceptible to certain kinds of stimuli.
some of which can affect them for the rest of their lives

Question 14

pheylketonuria (PKU)

Answer 14

cannot produce an enzyme that is required for normal development. results in accumulation of poisons that eventually cause profound intellectual disabilities.
treatable if caught early.

Question 15

Sickle-cell anemia

Answer 15

sickle shaped red blood cells. 1in 13 black or african americans born with it. causes episodes of pain, yellowish eyes, stunted growth and vision problems

Question 16

tay-sachs disease

Answer 16

often found in jews of eastern european decent. usually die by age 3 or 4, because of bodys inability to breakdown fat. if both parents carry genetic defect, child has 1 in 4 chance of having