This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Genetic programming Commitment of cells: potency Totipotent; pluripotent (stem cells) Stages of development Zygote morula blastula gastrula Further development: Cell layers: organs Brain 2 6 week human embryo 5 weeks 14 weeks 20 weeks Human evolution Concurrent evolution Grasping hand (65 my); use of tools Bipedal locomotion (6 my) Big brain (0.1-0.2 my) Clearly not true Socialization, meat eating (Stanford, USC) psychosocial evolution (Huxley) About 40,000 yrs ago 3 Development of connections Sperry Frog; newt Trophic factors Number of neurons Overproduction; apoptosis Hubel & Weisel: kittens...
View Full Document