HDFS 2010 Lecture 8: HDFS 2010 Lecture #8
18 Feb 2019
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Average weight: double the brith weight by month 4, triple it by age 1, much of it is fat. Average height: grow 14 inches from birth to age 2. These numbers are norms, an average measurement. First 4 weeks are neonatal infancy: most babies are 5. 5-10 pounds, 18-22 inches. Sleep : average newborn sleeps 16 hours per day, speci cs vary due to age, characteristics, and social environment, ample sleep correlates with normal brain maturations, learning, emotional regulation, academic success and psychological adjustment. Involves thinking, reasoning, and judging: most developed in infancy. Limbic system: processed emotions and memories & some body functions: hippocampus, amygdala, hypothalamus, and pituitary gland. The anatomy of a neuron : the insulation is called the myelin sheath - a white, fatty substance that is broken into small segments along the axon; myelin speeds up neural signals with progressive myelination. Why does this matter: neurotransmitters: chemicals transferred from one neuron to the other.
