Biomedical Engineering Reference
In-Depth Information
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Y-,t'ar -old human
9·year-old human
9·year-old human
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67·year-old human
67-year-old human
67-ytar-old human
Figure 1. Differences between the minicolumnar structure in 9- and 67-year-old human
brains. The bottom picture illustrates that in aging stage the brain loses whole minicolumns
and not randomly scattered neurons, which supports the fact that the minicolumn is the
basic unit of the human cortex. See attached CD for color version.
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