PSY-200 Lecture 3: Chapter 3 PSY
3 Nov 2016
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Dna(deoxyribonucleic acid) genetic material that makes up chromosomes. Genome: all the genetic information in our dna. Began in 1990; genetic structure of all chromosome pairs has now been mapped. Specifec genes can cause speci c diseases but play only a small part in creating. Traits tend to be in uenced by many genes (monogenic and polygenic transmission) Teasing apart and identifying genetic and environmental in uences on behavior requires special techniques. Concordance rates: amount of trait similarity between twins. Heritability: refers to the extent to which a characteristic is in uenced by genetics. Reaction range: range of possibilities that a genetic code allows. Cells found throughout the nervous system that provide structural support and insulation for neurons. Glue that holds the nervous system together and helps maintain the chemical environment of the neurons. Promotes more ef cient signaling in the nervous system. Interneurons:communicate only with other neurons (most common type)
