Validation of plaster endocast morphology through 3D CT image analysis
dc.contributor.author | Schoenemann, P. Thomas | en_US |
dc.contributor.author | Gee, James | en_US |
dc.contributor.author | Avants, Brian | en_US |
dc.contributor.author | Holloway, Ralph L. | en_US |
dc.contributor.author | Monge, Janet | en_US |
dc.contributor.author | Lewis, Jason | en_US |
dc.date.accessioned | 2007-09-20T17:48:53Z | |
dc.date.available | 2008-04-03T18:43:40Z | en_US |
dc.date.issued | 2007-02 | en_US |
dc.identifier.citation | Schoenemann, P. Thomas; Gee, James; Avants, Brian; Holloway, Ralph L.; Monge, Janet; Lewis, Jason (2007). "Validation of plaster endocast morphology through 3D CT image analysis." American Journal of Physical Anthropology 132(2): 183-192. <http://hdl.handle.net/2027.42/55857> | en_US |
dc.identifier.issn | 0002-9483 | en_US |
dc.identifier.issn | 1096-8644 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/55857 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=17103425&dopt=citation | en_US |
dc.description.abstract | A crucial component of research on brain evolution has been the comparison of fossil endocranial surfaces with modern human and primate endocrania. The latter have generally been obtained by creating endocasts out of rubber latex shells filled with plaster. The extent to which the method of production introduces errors in endocast replicas is unknown. We demonstrate a powerful method of comparing complex shapes in 3-dimensions (3D) that is broadly applicable to a wide range of paleoanthropological questions. Pairs of virtual endocasts (VEs) created from high-resolution CT scans of corresponding latex/plaster endocasts and their associated crania were rigidly registered (aligned) in 3D space for two Homo sapiens and two Pan troglodytes specimens. Distances between each cranial VE and its corresponding latex/plaster VE were then mapped on a voxel-by-voxel basis. The results show that between 79.7% and 91.0% of the voxels in the four latex/plaster VEs are within 2 mm of their corresponding cranial VEs surfaces. The average error is relatively small, and variation in the pattern of error across the surfaces appears to be generally random overall. However, inferior areas around the cranial base and the temporal poles were somewhat overestimated in both human and chimpanzee specimens, and the area overlaying Broca's area in humans was somewhat underestimated. This study gives an idea of the size of possible error inherent in latex/plaster endocasts, indicating the level of confidence we can have with studies relying on comparisons between them and, e.g., hominid fossil endocasts. Am J Phys Anthropol, 2007. © 2006 Wiley-Liss, Inc. | en_US |
dc.format.extent | 429066 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Wiley Subscription Services, Inc., A Wiley Company | en_US |
dc.subject.other | Life and Medical Sciences | en_US |
dc.subject.other | Anthropology | en_US |
dc.title | Validation of plaster endocast morphology through 3D CT image analysis | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Anthropology | en_US |
dc.subject.hlbtoplevel | Social Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Behavioral Sciences, University of Michigan-Dearborn, Dearborn, MI 48128 ; Museum of Archaeology and Anthropology, University of Pennsylvania, Philadelphia, PA 19104 ; Department of Behavioral Sciences, University of Michigan-Dearborn, 4026 CASL Building, 4901 Evergreen Road, Dearborn, MI 48128, USA | en_US |
dc.contributor.affiliationother | Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104 | en_US |
dc.contributor.affiliationother | Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104 | en_US |
dc.contributor.affiliationother | Department of Anthropology, Columbia University, New York, NY 10027 | en_US |
dc.contributor.affiliationother | Museum of Archaeology and Anthropology, University of Pennsylvania, Philadelphia, PA 19104 ; Department of Anthropology, University of Pennsylvania, Philadelphia, PA 19104 | en_US |
dc.contributor.affiliationother | Department of Anthropological Sciences, Stanford University, Stanford, CA 94305 | en_US |
dc.identifier.pmid | 17103425 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/55857/1/20499_ftp.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1002/ajpa.20499 | en_US |
dc.identifier.source | American Journal of Physical Anthropology | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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