PSY 177 Lecture Notes - Lecture 10: Neural Groove, Neural Tube, Caspase
27 Aug 2016
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Document Summary
Nervous system emerges early in development from cell layer of embryo. Ectoderm, the outer layer, becomes the nervous system. The neural groove forms between ridges of the ectoderm. Intellectual disability (id) refers to a variety of conditions that impede mental growth. Environmental factors can impair brain development, correlate with id. Teratogens: agents that harm the embryo or fetus drugs, alcohol, bacteria, viruses, chemicals. Fetal alcohol spectrum disorder (fasd) is a continuum of effects caused by maternal ingestion of alcohol appears in 40% of children of alcoholic mothers; may result even with relatively moderate drinking. Distinct facial features, cognitive difficulties such as attention and organization, id. Due to abnormalities in brain structure and function. No link between autism and vaccination (original article was falsified and has been discredited) Genes are intrinsic factors that influence brain development. The genotype, or genome, is all of the genetic information of an individual. The phenotype is all of the physical characteristics of an individual.
