FMLY 1010 Lecture Notes - Lecture 42: Lean Body Mass, Frontal Lobe, Cerebral Cortex
18 May 2017
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Document Summary
Girls are ahead of boys in rate of growth at 93% of adult height, boys 83% Girls more body fat, less muscle tissue, better coordinated but slower and weaker than boys. Increase in myelination of neural axons across cerebral cortex. Beginning of middle childhood, rapid increase in sensory and motor areas of brain linked to improvements in fine motor skills and hand eye coordination (6-8 year olds) Growth in frontal lobe of cerebral cortex focus of developmental processes. Myelination of reticular formation and nerves that link it to frontal lobes. Reticular formation: controls attention increases during middle childhood. Selective attention: ability to focus cognitive activity on the important elements of a problem or situation. Association areas: parts of the brain where sensory, motor and intellectual functions are linked. Achieve nearly complete myelination contribute to increased information processing speed. Spatial perception: ability to identify and act on relationships between objects in space. Map-reading (complex special perception) at 8 years old.
