PSYCH211 Lecture Notes - Lecture 2: Motor Cortex, Myelin, Walter Jakob Gehring
Document Summary
Brain development: brief overview of adult brain structure, steps and processes of brain development from fetus to adolescence, are genes involved in learning, brief overview of adult brain structure. High level of organization of the human brain which is the same for everyone: ex. When one person is planning or deciding something, the brain activity is in the frontal lobe but it is the same for everyone brain activity in frontal lobe. Presented wheel + spokes pattern in right visual field of anesthetized monkey with one eye closed. Injected dye that marks neurons when they are active. From single cell to full brain general principles of brain building. Making neurons: general process, axonal & dendritic growth. Neural plate part of zygote (first bunch of cells) that becomes brain & spinal cord. At 10 weeks, neurulation starts production of neurons. 240,000 neurons/minute (at peak) 4,000 neurons/sec. When the brain grows, the front becomes the back and starts folding.