Psychology Chapter 3

Human Development

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Developmental psychology
The study of progressive changes in behavior and abilities from conception to death
Heredity
(nature) Transmission of physical and psychological characteristics from parent to offspring through genes
Environment
(nurture) sum of all external conditions afecting development, especially effects of learning
DNA(deoxyribonucleic acid)
A molecular structure that contains coded gentic information
Genes
Specific areas on a strand of DNA that carry hereditary information
Dominant gene
Gene whose influence will be expressed each time the gene is present
Recessive gene
Gene whose influence will be expressed only when it is paired with a second recessive gene
Genetic disorder
Problem caused by inherited characteristics from parents. . .-ex. cystic fibrosis
Congenital problem
Problem or defect that occurs during prenatal development; birth defect
Teratogen
Radiation, drug, or other substance capable of altering fetal development in nonheritable ways that cause birth defects. . .-ex:narcotics, radiatin, cigarette smoke, lead, cocaine
Fetal Alcohol Syndrome
Caused by repeated heavuy alcohol consumption during pregnancy. . . Infants: have low birth weight, a small head, and facial malformations. . .-Lack cupid's bow, the bow-shaped portion of the upper lip
Sensitive period
During development, a period of increased sensitivity to environmental influences. Also a time during which certain events must take place for normal development to occur
Deprivation
In development, the loss or withholding of normal stimulation, nutrition, comfort, love, and so forth; a condition of lacking
Enrichment
In development, deliberately making an environment more stimulating, nutritional, comforting, loving, and so forth
Reaction range
The limits environment places on the effects of heredity