PSYC 3322 1st Edition Lecture 10 Outline of Last Lecture II. Discussion of specific classes of psychoactive drugsIII. Introduction to Drug Abuse and AddictionIV. Features of Drug Abuse and AddictionV. Wanting-and-Liking TheoryVI. EpigeneticsVII. HormonesOutline of Current Lecture II. Neurobiology of Development III. The Brain Emerges from the Neural TubeIV. Development of the Nervous SystemCurrent LectureNeurobiology of Development - We start out as infants. Infants’ brains and bodies are not developed, so all movement is involuntary. This is because all development in utero was dedicated to growing body parts.- Infants develop into toddlers. Toddlers have more capabilities, such as walking and beingable to hold things.- Toddlers grow into children, etc.The Brain Emerges from the Neural TubePrenatal StagesZygote: Fertilization—2 weeksEmbryo: 2-8 weeksFetus: 9 weeks-birthDay 1: FertilizationDay 2: SeparationThese 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.Day 15: Embryonic diskDay 18: NS developingDay 20: Formation of neural grooveDay 22: Formation of neural tubeDevelopment of the Nervous System1. Neurogenesis2. Cell Migration3. Differentiation4. Synaptogenesis5. Neuronal Cell Death6. Synapse RearrangementNeurogenesis (Gliogenesis)- Cell proliferation produces cells that become neurons or glial cells- Ventricular zoneCell MigrationCell Differentiation- Uncommitted precursor → Cells with some segregation of determinants → Intercellular environment → Diverse