Final answer:
The 'layers' mentioned in the context of the Blue Brain Project actually refer to the structural layers of the brain, which include gray matter, white matter, and the three meningeal layers: dura mater, arachnoid mater, and pia mater.
Step-by-step explanation:
The question about the layers in the Blue Brain Project seems to be a bit misleading as it pertains more to the structural layers of the human brain rather than the project itself. Nevertheless, when referring to the brain, the structural layers mentioned include the gray matter, white matter, and three layers of meninges: the dura mater, arachnoid mater, and pia mater. The gray matter consists of the cerebral cortex, which is the layer involved in processing cognitive tasks and is the site where neuron cell bodies are concentrated. The white matter lies beneath the gray matter and consists of myelinated axon tracts that allow for information transfer between different areas of the gray matter within the cerebral cortex, as well as between the cortex and other parts of the central nervous system. The layers of meninges are the protective coverings of the brain involved in providing structural support and containing cerebrospinal fluid for cushioning and nutrient transport.