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Quantitative Architectural Analysis: A New Approach to Cortical Mapping

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Abstract

Results from functional imaging studies are often still interpreted using the classical architectonic brain maps of Brodmann and his successors. One obvious weakness in traditional, architectural mapping is the subjective nature of localizing borders between cortical areas by means of a purely visual, microscopical examination of histological specimens. To overcome this limitation, objective mapping procedures based on quantitative cytoarchitecture have been generated. As a result, new maps for various species including man were established. In our contribution, principles of quantitative cytoarchitecture and algorithm-based cortical mapping are described for a cytoarchitectural parcellation of the human auditory cortex. Defining cortical borders based on quantified changes in cortical lamination is the decisive step towards a novel, highly improved probabilistic brain atlas.

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Acknowledgments

We thank Ursula Blohm for preparing thousands of histological whole brain sections in excellent quality. This work was supported by a grant (to K.Z.) funded by the DFG (grant KFO 112), a Human Brain Project/Neuroinformatics Research grant funded by the National Institute of Biomedical Imaging and Bioengineering, the National Institute of Neurological Disorders and Stroke, and the National Institute of Mental Health (K.A. and K.Z.). Further support by the BMBF (BMBF 01GO0104), Brain Imaging Center West (BMBF 01GO0204) is gratefully acknowledged.

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Schleicher, A., Morosan, P., Amunts, K. et al. Quantitative Architectural Analysis: A New Approach to Cortical Mapping. J Autism Dev Disord 39, 1568–1581 (2009). https://doi.org/10.1007/s10803-009-0790-8

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