PSYC-2005EL Lecture Notes - Lecture 5: Frontal Lobe, Optical Flow, Synaptic Pruning
1 Nov 2016
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General growth trends: changes in height and weight: Rapid weight gain; doubles by 6mos. and tripled by one year. By two 4x their initial weight and of their adult height. Grows slowly until growth spurt in puberty: changes in body proportion: A (cid:271)a(cid:271)(cid:455)"s head a(cid:272)(cid:272)ounts for 70% of their (cid:271)od(cid:455) Develop caudial (head down) and proximodistal (centre outward: skeletal development: Initially composed of soft cartilage; gradually ossifys (hardens) Skull is soft at birth; separated by soft spots called fontanelles. Single skull by the age of two. X-rays from the development of the hands can show the maturation of the subject: muscular development. Born with all your muscle fibres (35% water) Grow as proteins and salts fill the cellular fluid. Brain development: prenatal month seven to age two, brain weight increases dramatically post birth, neurons/neural tube: Formed by the end of the second trimester. Specialized functions are deciphered; will function as per the location the neuron develops in.
