@1 year ago with 18 notes
#neuroscience #neurology #brain #brain mapping #cortical theory #cortex #the blue brain #computational neuroscience
"The cortical column is considered to be the basic functional unit of the mammalian brain. The visualization of the Blue Brain juvenile rat neocortical column simulation consists of approximately 10’000 densely interconnected neurons traversing all six layers - a veritable forest of dendrites, axons and somas. Add in glia and this tangle of connections gets even more chaotic (the Blue Brain simulation does not include glia at this stage, however). The actual current Blue Brain simulation consists of approximately 30’000 neurons but visualization of this many neurons is tantamount to looking at a wall – very little detail can be seen due to the sheer density of neurons.
The rat brain is estimated to have about 100’000 columns. This is orders of magnitude less than the human brain. In humans, the numbers pose an enormous challenge — a human cortex may have as many as two million columns, each having in the order of 100,000 neurons each.”