Abstract
The availability of computed tomographic (CT) scans of fossil crania has opened a new chapter in paleoneurology. CT scans have made it possible to create virtual imprints of the braincase—so called endocasts—on the computer, even when the endocranial cavity is filled with stone matrix. CT data have also become invaluable for reconstructing partially complete or damaged fossils. Recent methodological advancements have made it possible to analyse endocranial shape using multivariate statistics and study the evolution and development of the endocranium quantitatively. Here I review (1) methods for quantifying endocranial shape, and (2) techniques of virtual fossil reconstruction. I show how these novel methods can be applied in paleoneurology, and discuss advantages and limitations of these approaches.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Adams DC, Rohlf FJ, Slice DE (2004) Geometric morphometrics: ten years of progress following the “revolution”. Ital J Zool 71(1):5–16
Bastir M, Rosas A, Gunz P, Peña-Melian A, Manzi G, Harvati K, Kruszynski R, Stringer C, Hublin JJ (2011) Evolution of the base of the brain in highly encephalized human species. Nat Commun 2:588
Benazzi S, Bookstein FL, Strait DS, Weber GW (2011) A new OH5 reconstruction with an assessment of its uncertainty. J Hum Evol 61(1):75–88
Bookstein FL (1989) Principal warps: thin-plate splines and the decomposition of deformations. IEEE Trans Pattern Anal Mach Intell 11:567–585
Bookstein FL (1991) Morphometric tools for landmark data: geometry and biology. Cambridge University Press, Cambridge
Bookstein FL (1996) Combining the tools of geometric morphometrics. Advances in morphometrics. Plenum Press, New York, pp 131–151
Bookstein FL (1997) Landmark methods for forms without landmarks: morphometrics of group differences in outline shape. Med Image Anal 1(3):225–243
Bruner E (2004) Geometric morphometrics and paleoneurology: brain shape evolution in the genus Homo. J Hum Evol 47(5):279–303
Bruner E, Mantini S, Ripani M (2009) Landmark-based analysis of the morphological relationship between endocranial shape and traces of the middle meningeal vessels. Anat Rec (Hoboken) 292(4):518–527
Bruner E, Manzi G (2007) Landmark-based shape analysis of the archaic Homo calvarium from Ceprano (Italy). Am J Phys Anthropol 132(3):355–366
Bruner E, Manzi G, Arsuaga JL (2003) Encephalization and allometric trajectories in the genus Homo: evidence from the Neandertal and modern lineages. Proc Natl Acad Sci USA 100(26):15335–15340
Bruner E, Saracino B, Ricci F, Tafuri M, Passarello P, Manzi G (2004) Midsagittal cranial shape variation in the genus Homo by geometric morphometrics. Coll Antropol 28(1):99–112
Carlson KJ, Stout D, Jashashvili T, de Ruiter DJ, Tafforeau P, Carlson K, Berger LR (2011) The endocast of MH1, Australopithecus sediba. Science 333(6048):1402–1407
Conroy GC, Falk D, Guyer J, Weber GW, Seidler H, Recheis W (2000) Endocranial capacity in Sts 71 (Australopithecus africanus) by three-dimensional computed tomography. Anat Rec 258(4):391–396
Conroy GC, Weber GW, Seidler H, Tobias PV (1999) Endocranial capacity of early hominids. Science 283(5398):9
Conroy GC, Weber GW, Seidler H, Tobias PV, Kane A, Brunsden B (1998) Endocranial capacity in an early hominid cranium from Sterkfontein, South Africa. Science 280(5370):1730
Coqueugniot H, Hublin JJ (2012) Age-related changes of digital endocranial volume during human ontogeny: results from an osteological reference collection. Am J Phys Anthropol 147(2):312–318
Dart RA (1925) Australopithecus africanus: the man-ape of South Africa. Nature 115:195–199
Dryden IL, Mardia KV (1998) Statistical shape analysis. Wiley, Chichester
Durrleman S, Pennec X, Trouvé A, Ayache N, Braga J (2012) Comparison of the endocranial ontogenies between chimpanzees and bonobos via temporal regression and spatiotemporal registration. J Hum Evol 62(1):74–88
Falk D (1980) A reanalysis of the South African australopithecine natural endocasts. Am J Phys Anthropol 53(4):525–539
Falk D, Hildebolt C, Smith K, Morwood MJ, Sutikna T, Brown P, Jatmiko, Saptomo EW, Brunsden B, Prior F (2005) The brain of LB1, Homo floresiensis. Science 308(5719):242–245
Goodall C (1991) Procrustes methods in the statistical analysis of shape. J Roy Stat Soc B 53(2):285–339
Gower JC (1975) Generalized procrustes analysis. Pyschometrika 40:33–51
Grine FE, Gunz P, Betti-Nash L, Neubauer S, Morris AG (2010) Reconstruction of the Late Pleistocene human skull from Hofmeyr, South Africa. J Hum Evol 59:1–15
Gunz P, Mitteroecker P, Bookstein FL (2005) Semilandmarks in three dimensions. In: Slice DE (ed) Modern morphometrics in physical anthropology. Kluwer Academic/Plenum Publishers, New York, pp 73–98
Gunz P, Mitteroecker P, Neubauer S, Weber GW, Bookstein FL (2009) Principles for the virtual reconstruction of hominin crania. J Hum Evol 57(1):48–62
Gunz P, Neubauer S, Golovanova L, Doronichev V, Maureille B, Hublin JJ (2012) A uniquely modern human pattern of endocranial development. Insights from a new cranial reconstruction of the Neandertal newborn from Mezmaiskaya. J Hum Evol 62:300–313
Gunz P, Neubauer S, Maureille B, Hublin JJ (2010) Brain development after birth differs between Neanderthals and modern humans. Curr Biol 20(21):R921–R922
Gunz P, Neubauer S, Maureille B, Hublin JJ (2011) Virtual reconstruction of the Le Moustier 2 newborn skull. Implications for Neandertal ontogeny. PALEO 22:155–172
Gunz P, Mitteroecker P (2013) Semilandmarks: a method for quantifying curves and surfaces. Ital J Mammal 24(1):103–109. doi:10.4404/hystrix-24.1-6292
Holloway RL (1975) Early hominid endocasts: volumes, morphology and significance for hominid evolution. In: Tuttle R (ed) Primate functional morphology and evolution. Mouton Publishers, The Hague, pp 393–416
Holloway RL, Broadfield DC, Yuan MS (2004) The human fossil record: brain endocasts, The paleoneurological evidence. Wiley-Liss, Hoboken
Mitteroecker P, Gunz P (2009) Advances in geometric morphometrics. Evol Biol 36(2):235–247
Neubauer S, Gunz P, Hublin JJ (2009) The pattern of endocranial ontogenetic shape changes in humans. J Anat 215(3):240–255
Neubauer S, Gunz P, Mitteroecker P, Weber GW (2004) Three-dimensional digital imaging of the partial Australopithecus africanus endocranium MLD 37/38. Can Assoc Radiol J 55(4):271–278
Neubauer S, Gunz P, Weber GW, Hublin JJ (2012) Endocranial volume of Australopithecus africanus: new CT-based estimates and the effects of missing data and small sample size. J Hum Evol 62(4):498–510
Ponce de León MS, Golovanova L, Doronichev V, Romanova G, Akazawa T, Kondo O, Ishida H, Zollikofer CP (2008) Neanderthal brain size at birth provides insights into the evolution of human life history. Proc Natl Acad Sci USA 105(37):13764–13768
Richtsmeier JT, DeLeon VB, Lele SR (2002) The promise of geometric morphometrics. Am J Phys Anthropol Suppl 35:63–91
Rohlf FJ, Marcus LF (1993) A revolution in morphometries. Trends Ecol Evol 8(4):129–132
Rohlf FJ, Slice D (1990) Extensions of the procrustes method for the optimal superimposition of landmarks. Syst Zool 39:40–59
Schoenemann PT, Gee J, Avants B, Holloway RL, Monge J, Lewis J (2007) Validation of plaster endocast morphology through 3D CT image analysis. Am J Phys Anthropol 132(2):183–192
Slice DE (2007) Geometric morphometrics. Annu Rev Anthropol 36:261–281
Specht M, Lebrun R, Zollikofer CPE (2007) Visualizing shape transformation between chimpanzee and human braincases. Vis Comput 23(9–11):743–751
Tobias PV (2001) Re-creating ancient hominid virtual endocasts by CT-scanning. Clin Anat 14(2):134–141
Weber GW, Bookstein FL (2011) Virtual anthropology : a guide to a new interdisciplinary field, Wien. Springer, London
Weber GW, Gunz P, Neubauer S, Mitteroecker P, Bookstein FL (2012) Digital South African fossils: morphological studies using reference-based reconstruction and electronic preparation. In: Reynolds SC, Gallagher A (eds) African genesis: perspectives on hominin evolution. Cambridge University Press, Cambridge, pp 298–316
Zollikofer CPE, Ponce de LeĂłn MS (2005) Virtual reconstruction : a primer in computer-assisted paleontology and biomedicine. Wiley-Interscience, Hoboken
Acknowledgements
I am grateful to Emiliano Bruner and the team from the Centro Nacional de Investigación sobre la Evolución Humana for organizing and hosting the workshop “Human Paleoneurology” and for inviting me to contribute to this book. I want to thank Jean-Jacques Hublin for his support, Simon Neubauer and Nadia Scott for creating the endocranial segmentions shown in the figures of this chapter, and all workshop participants for stimulating discussions. I thank the Institute for Human Evolution at Witwatersrand University (Johannesburg) for allowing CT-scanning of the Taung fossil shown in Figs. 3.1 and 3.3, and I am grateful to Lubov Golovanova and Vladimir Doronichev for providing access to the fossil shown in Fig. 3.8. This research was funded by the Max Planck Society.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Springer International Publishing Switzerland
About this chapter
Cite this chapter
Gunz, P. (2015). Computed Tools for Paleoneurology. In: Bruner, E. (eds) Human Paleoneurology. Springer Series in Bio-/Neuroinformatics, vol 3. Springer, Cham. https://doi.org/10.1007/978-3-319-08500-5_3
Download citation
DOI: https://doi.org/10.1007/978-3-319-08500-5_3
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-08499-2
Online ISBN: 978-3-319-08500-5
eBook Packages: EngineeringEngineering (R0)