UNIT 2 - Chapter 8 - Development Across the Life Span Flashcards
human development
the scientific study of the changes that occur in people as they age from conception until death
longitudinal design
research design in which one participant or group of participants is studied over a long period of time
cross-sectional design
research design in which participants age groups are studied at one particular point in time
cohort effect
the impact on development occurring when a group od people share a common time period or common life experience
nature
the influence of our inherited characteristics on our personality, physical growth, intellectual growth, and social interactions
nuture
the influence of the environment on personality, physical growth, intellectual growth and social interactions
genetics
the science of inherited traits
DNA (deoxyribonucleic acid)
special molecule that contains the genetic material of the organism
gene
section of DNA having the same arrangement of chemical elements
dominant
referring to a gene that actively controls the expression of a trait
recessive
referring to a gene that only influences the expression of a trait when paired with an identical gene
ovum
the female sex cell, or egg
sperm
the male sex cell
fertilization
the union of the ovum and sperm
zygote
cell resulting from the uniting of the ovum and sperm
monozygotic twins
identical twins formed when one zygote splits into two separate masses of cells, each of which develops into a separate embryo
dizygotic twins
often called fraternal twins, occurring when two individual eggs get fertilized by separate sperm, resulting in two zygotes in the uterus at the same time
bioethics
the study of ethical and moral issues brought about by new advances in biology and medicine
germinal period
first 2 weeks after fertilization, during which the zygote moves down to the uterus and begins to implant in the lining
embryo
name for the developing organism from 2 weeks to 8 weeks after fertilization
embryonic period
the period from 2 to 8 weeks after fertilization, during which the major organs and structures of the organism develop
critical periods
times during which certain environmental influences can have an impact on the development of the infant
teratogen
any factor that can cause a birth defect
fetal alcohol spectrum disorder (FASD)
the physical and mental defects caused by consumption of alcohol during pregnancy
fetal period
the time from about 8 weeks after conception until the birth of the baby
fetus
name for the developing organism from 8 weeks after fertilization to the birth of the baby
cognitive development
the development of thinking, problem solving, and memory
schemes
in this case, mental concepts formed through experiences with objects and events
sensorimotor stage
Piaget’s first stage of cognitive development, in which the infant uses its senses and motor abilities to interact with objects in the environment