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PSY 301 CH.2
Developmental Psychology
43
Psychology
Undergraduate 3
09/19/2011

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Term
Evolutionary Psychology
Definition
Evolution
-Darwin’s Theory- natural selection, survival of the fittest, adaption
-men=more physically aggressive, women=more verbally aggressive
Term
chromosomes
Definition
threadlike structures made up of DNA
Term
DNA
Definition
a complex molecule that has a double helix shape, like a spiral staircase, and contains genetic information
Term
genes
Definition
the units of hereditary information, short segments of DNA
Term
mitosis
Definition
reproduction of cells
Term
meiosis
Definition
division of cells
Term
zygote
Definition
an egg and sperm fuse to create a single cell
Term
genotype
Definition
your exact generic heritance
Term
phenotype
Definition
a way an individual’s genotype is observed, dominant and recessive genes
Term
sex-linked genes
Definition
when a mutation occurs on a gene, a change in a gene
Term
dominant gene
Definition
one gene of a pair always exerts its effects, overriding the potential influence of the other gene
Term
recessive gene
Definition
the gene that is being overrided
Term
down syndrome
Definition
a chromosomally transmitted form of mental retardation, caused by the presence of an extra copy of chromosome 21
Term
Fragile X
Definition
a genetic disorder in which males have an extra X chromosome
Term
turner syndrome
Definition
a missing X chromosome in females can cause a mental retardation and sexual underdevelopment
Term
PKU
Definition
metabolic disorder that, left untreated causes mental retardation
Term
sickle-cell anemia
Definition
blood disorder that limits the body's oxygen supply
Term
spina bifida
Definition
neural tube disorder that causes brain and spine abnormalities
Term
Tay-Sachs disease
Definition
deceleration of mental and physical development caused by an accumulation of lipids in the nervous system
Term
behavior genetics
Definition
the field that seeks to discover the influence of heredity and environment on the individual differences in human traits and development; often study either twins or adoption situations
Term
germinal period
Definition
1st 2 weeks of pregnancy
Term
embrionic stage
Definition
3rd week to 8th week of pregnancy
Term
fetal stage
Definition
9th week to birth
Term
Anacephaly
Definition
pregnancy will go to term, but baby will either be born dead or will not live long after birth.
Term
Spina bifida
Definition
In the development of the spinal cord, there is an open place that did not develop all the way. Depends on the size. Sometimes has mental retardation.
Term
5 prenatal diagnostic tests
Definition
ultrasound, fetal MRI, CVS, amneocentesis, maternal blood screening
Term
in vitro fertilization
Definition
the technique that produced the wold's first "test tube baby" in 1978, involves eggs and sperm being combined in a lab dish
Term
teratogen
Definition
any agent that can potentially cause a birth defect or negatively alter cognitive and behavioral outcomes
Term
types of teratogens that can occur
Definition
prescription and nonprescription drugs, psychoactive drugs, incompatible blood types, maternal disease, maternal diet and nutrition, emotional states and stress, maternal age, paternal factors, and environmental hazards
Term
first stage of birth
Definition
uterine contractions are 15 to 20 minutes apart and last up to a minute
Term
second stage of birth
Definition
begins when the baby's head starts to move through the cervix into the birth canal
Term
afterbirth (third stage)
Definition
when the placenta, umbilical cord, and other membranes are detached and expelled
Term
analgesia
Definition
used to relieve pain.
Term
anesthesia
Definition
used with an epidural. Medication inserted in the mother’s spinal collum. Numbs the mother from the chest down.
Term
oxytocin/ pitocin
Definition
synthetic hormones that are used to stimulate contractions.
Term
Natural Childbirth
Definition
method that aims to reduce the mother’s pain by decreasing her fear through education about childbirth and by teaching her to use breathing methods and relaxation techniques during labor.
Term
Prepared Childbirth
Definition
Ferdinand Lamaze developed a method similar to natural childbirth
Term
Cesarean Delivery (C-Section)
Definition
if the baby is in a breech position, the baby’s buttocks are the first part to emerge from the vagina. 1 of every 25 deliveries, the baby’s head is still in the uterus when the rest of the body is out.
Term
Apgar Scale
Definition
A widely used assessment of the newborn’s health at 1 and 5 minutes after birth. Scores from 7-10 are normal. Scores from4-6 are OK, but should have some concerns. Scores from 1-3 will potentially be disorderly or underdeveloped.
Term
Low birth weight
Definition
any baby weighing 51/2 lbs or smaller. Consequences: depending on how early and how severe the problems are, we would anticipate that there will be problems. More at risks for disorders
Term
Small for date
Definition
compared to other newborns of the same age, this baby is small for date. 400% greater for death.
Term
postpartum depression
Definition
involves a major depressive episode that typically occurs about four weeks after delivery. Women have strong feelings of sadness, anxiety, or despair that for at least a two-week period they have trouble coping with their daily tasks.
Term
postpartum blues
Definition
about two to three days after birth, women begin to feel depressed, anxious, and upset.
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