Health Sciences 2700A/B Lecture Notes - Lecture 7: Motor Coordination, Cerebral Cortex, Cardiovascular Disease
1 Nov 2020
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Although the changes are more dif cult to observe directly, the physical changes in middle childhood are just as impressive as those in early childhood. Growth patterns - we see a gain of 5cm to 8cm in height and 2. 75 kg in weight each year. Increasingly good ne motor coordination at this age makes writing possible as well as drawing, cutting, and many other skills. We see a steady increase in the myelinization of neural axons across the cerebral cortex, with sensory and motor areas affected rst, which may be linked to the improvement in ne motor skills and hand eye coordination. Relative right-left orientation improves at this stage with lateralization. Spatial cognition - boys score better than girls on spatial orientation. Boys early play preferences may enhance this ability (e. g. , they tend to play with blocks more than girls do) Visual experience is important in development of spatial perception.
