unit 6: development Flashcards
Developmental Psychology (76 cards)
developmental psychology
study of physical, intellectual, social, and moral changes across the life span from conception to death.
critical period
physical development
a time interval during which specific stimuli have a major effect on development that the stimuli do not produce at other times.
prenatal development
physical development
period of development that begins with fertilization, or conception, and ends with birth.
zygote
physical development
a fertilized ovum with the genetic instructions for a new individual, normally contained in 46 chromosomes.
embryo
physical development
the developmental prenatal stage (from about 2 weeks through 2 months after fertilization) when most organ development begins.
fetus
physical development
the developing human organism from about 9 weeks after conception to birth when organ systems begin to interact; sex organs and sense organs become refined.
teratogen
physical development
harmful substances (drugs or viruses) during the prenatal period that can cause birth defects.
fetal alcohol syndrome (FAS)
physical development
a cluster of abnormalities that occurs in babies of matchers who drink alcoholic beverages during pregnancy, which includes low intelligence, small head with flat face, misshapen eyes, flat nose, and thin upper lip, as well as some degree of intellectual impairment.
neonate
physical development
newborn baby from birth to 1 month old; shows reflexive behavior.
reflex
physical development
the simplest form of behavior. (rooting, sucking, swallowing, grasping, moro [startling])
rooting reflex
physical development
the newborn’s tendency to move its head when stroked on the cheek, turn toward the stimulus as if searching for a nipple, and open its mouth.
sucking
physical development
the automatic response of drawing in anything at the mouth.
swallowing
physical development
automatic contraction of throat muscles that enables food to pass into the esophagus without chocking.
grasping reflex
physical development
infant closes his or her fingers tightly around an object put in hand.
moro (startle reflex)
physical development
when exposed to a loud noise or sudden drop, the neonate automatically arches his or her back, flings his or her limbs out, and quickly retracts them.
habituation
physical development
decreasing responsiveness with repeated presentation of the same stimulus.
puberty
physical development
the early adolescent period, marked by accelerated growth and onset of the ability to reproduce.
primary sex characteristics
physical development
the reproductive organs (ovaries, uterus and testes) and external genitals (vulva and penis).
secondary sex characteristics
physical development
the nonreproductive sexual characteristics, including developed breasts in females; facial hair, Adam’s apple, and deepened voice in males; and pubic hair and underarm hair for both.
menarche
physical development
first menstrual period at about age 12.5 marks female fertility. Male fertility is marked by ejaculation of semen with viable sperm at about age 14. Adolescent brain changes include selective pruning of dendrites and development of emotional limbic system and frontal lobes.
menopause
physical development
the cessation of the ability to reproduce accompanied by a decrease in production of female sex hormones,; occurs at about age 50.
schema
cognitive development
framework of basic ideas and preconceptions about people, objects, and events based on past experience in long-term memory.
assimilation
cognitive development
process by which we incorporate new information into our existing cognitive structure or schemas.
accommodation
cognitive development
process by which we modify our schemas to fit new information.