PSY 2301 Lecture Notes - Lecture 6: Neural Stem Cell, Neural Tube, Ventricular Zone
22 Mar 2017
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Latest to develop; need for understanding of social connections. Taking what"s happening in the brain and predicting possible beharviours. More complex behavoiur = more complex neural connections. Factors that influence both brain and behavioural developments such a s language or injury. Neural plate ectoderm all layer that gives write the to the neural tube. Neurons come from stem cell ; if you put them in a specific environment - they will replicate and grow. How do stem cells know what to become. Chemical signal (environment -> turns gene on -> specific proteins are made -> specific cells. Creating new neurons; doesn"t happen for the whole in utero life. Completed in 20 weeks; cannot create new neurons after that. In the first 5 months; easier to come back from injury. Defferetiation is dependent upon genetic instructions; timing; signal from other cells. Filopod: certain chemicals that they adhere to or repulse from. Cell adhesion molecule: signalling to grow towards this.
