PSY 213 1st Edition Lecture 5 Outline of Last Lecture I. Evolutionary PsychologyII. Genetic Foundations of DevelopmentIII. Genes and ChromosomesIV. Genetic PrinciplesV. Sex-Linked Chromosome AbnormalitiesOutline of Current Lecture I. Gene - Linked Abnormalities II. Behavior GeneticsIII. Prenatal DevelopmentIV. The Course of Prenatal DevelopmentCurrent LectureI. Gene - Linked Abnormalities - Phenylketonuria (PKU)a. Metabolic disorder that, left untreated, causes mental retardation – babies who are born with PKU, and it is not caught in time the child will have permanent cognitive impairments. Caused by recessive gene. 1 in 10,000 - 20,000… but it is possible for the baby to grow up normal, need environmental intervention. - Sickle-cell anemiaThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.b. Blood disorder that limits the body’s oxygen supply – causes joint swelling, heart and kidney failure. It robs the body of oxygen. Ethnic differences with this disease. Happens to more African Americans than Caucasians. - Cystic fibrosis- Diabetes- Hemophilia- Huntington disease – doesn’t appear till later in life. Average age of symptoms is 35. terminal. Central nervous system starts shutting down. Inherited - Spina bifida- Tay-Sachs disease –Jewish pop is more likely to be affected. Central nervous system starts to shut down around 6 months of age. Blind, deaf… children only live to about three or four. II. Behavior GeneticsSeeks to discover the influence of heredity and environment on individual differences in human traits and development – how much of your intelligence it due to mom and dad or environment factors like healthy diet, stimuli of the brain etc. a. Twin study – look at identical twins and if one twin has a particular trait then we would expect the other twin would also have the trait. That’s not always the case. It’s not all about genetics.b. Adoption study – looks at behavior and psyche characteristics resemble their adoptive parents or their biological parents more.III. Prenatal Development- The course of prenatal development- Prenatal tests- Infertility and reproductive technology- Hazards to prenatal development- Prenatal careIV. The Course of Prenatal DevelopmentGerminal period: Takes place in the first two weeks after conceptionIncludes:Creation of fertilized egg (the zygote)Cell division – things happen very quickly Attachment of the multicellular organism to the uterine wallEmbryonic period: Occurs from two to eight weeks after conception- Cell division increases more rapidly- Support systems for organs is being laid down- Organs begin to appear If women are exposed to bad things during this period it can have a negative effect. Fetal period: Extends from two months after conception until birth in typical pregnancies- Last stage- Lasts about seven months- Growth and development are dramatic during this stage - Layer of fat is added to help protect fetus, temp control.- Fetus becomes more active- Age of viability is 24 – 25 weeks about 5 months may survive. The smaller they are the greater the chances they will not survive.- Learning already takes place in the
View Full Document
Unlocking...