PSY 606 Chapter Notes - Chapter 2: Spina Bifida, Antisocial Personality Disorder, Occipital Lobe
Document Summary
Chapter 2 theoretical perspectives and methods of treatment. Cystic fibrosis and huntington"s disease are inherited genetic disorders. Genetic errors can develop prenatally from exposure to teratogens (drugs, x-rays, infectious disease that interfere for normal prenatal development) or mutagens (pesticides, heavy metals, ionizing radiation that produce heritable changes in cellular dna) Maternal alcohol consumption during pregnancy fetal alcohol effects. Maternal diet lacking folic acid (source of vitamin b) spina bifida. Three copies of number 21 chromosome trisomy 21 aka down syndrome. Missing one x-chromosome in females turner syndrome. In other cases, people have genetic vulnerability to developing certain disorders but do not display it unless exposed to specific environmental risk factors later in life (e. g. schizophrenia or depression, which generally don"t appear before adolescence) Epigenetics the study of heritable and acquired changes in gene regulation (phenotype) that occur without effecting dna sequence (genotype)
