Abstract
Computer technology constitutes a formidable asset in the acquisition, manipulation, analysis, and modeling of neuroanatomical data. Single-cell arborizations can be digitally represented as a large number of connected cylinders. In this form, neuronal structure is amenable to three-dimensional (3D) rendering, extensive quantitative characterization, and computational modeling of biophysics, electrophysiology, outgrowth, network connectivity, and dynamics. This chapter describes the state of the art in neuron and network modeling, with particular emphasis on the methods to acquire, analyze, and synthesize neuroanatomical data. Several commercial and freeware systems are available to reconstruct neuronal morphology in digital format, from a variety of preparations, either directly from the microscope or off-line from captured images. The resulting, increasing amount of digital data (and meta-data) can be archived and publicly distributed to maximize scientific impact. This database enables continuing efforts in modeling dendritic branching of neurons throughout the central nervous system, including cortex, cerebellum, and spinal cord. The experimental acquisition of complete axonal projections from single neurons poses additional challenges, which are only recently being overcome. The combination of dendritic and axonal reconstructions (or models), together with the surface and volumetric representation of the surrounding tissue, allows the computational derivation of synaptic connectivity. Taken together, such models constitute a powerful substrate for the implementation of large-scale, anatomically realistic neural networks. These advances can be instrumental for the cross-scale elucidation of the relationship between structure, activity, and function in the brain.
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Ascoli, G.A., Scorcioni, R. (2006). Neuron and Network Modeling. In: Zaborszky, L., Wouterlood, F.G., Lanciego, J.L. (eds) Neuroanatomical Tract-Tracing 3. Springer, Boston, MA . https://doi.org/10.1007/0-387-28942-9_19
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DOI: https://doi.org/10.1007/0-387-28942-9_19
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