Neuroanatomical evidence suggests that we have relatively larger temporal lobes when compared with the apes’ allometric brain variation. Actually, there are also some form differences in our middle cranial fossa, housing the temporal lobes. However, the morphology of the middle endocranial fossa is influenced by many factors involved in the cranial base phylogeny and ontogeny, and we can wonder whether it strictly represents, in terms or direct linear variations, corresponding changes of the temporal lobes. The structural relationship with the underlying mandible is just one of the many non-neural influences of the middle endocranial area. Nonetheless, the middle endocranial surface can also provide information on the sulcal pattern of the temporal cortex, now further investigated by Antonio Rosas and Markus Bastir. In this case, the resulting morphology is more likely to be the direct consequence of brain morphogenesis and cortical organization, being less influenced by structural cranial constraints. That is, possible species-specific differences in the sulcal pattern can be more easily interpreted in terms of intrinsic brain factors (independently upon their functional meaning), more than in terms of extrinsic secondary consequences of the complex spatial dynamics of the endocranial base.
apes Atapuerca Australopithecus brain-artefact interface brain atlas brain biology braincase brain size brain thermoregulation CENIEH Cercopithecoids chimpanzee China cognitive archaeology corpus callosum cortical folding cortical surface cranial thickness diploic channels eLearning embodiment encephalization endocranial ontogeny endocranial volume evo-devo extended mind fossil endocasts Frederick Coolidge frontal bone frontal lobes functional craniology geometric morphometrics hemispheric asymmetries Holocene Homo erectus human ethology human genus intraparietal sulcus Konrad Lorenz Institute language Le Moustier macaque Malu Cave mammals metopic suture Mezmaiskaya modern humans myopia Neandertals occipital lobes orbits paleoneurology Pan paniscus Pan troglodytes parietal bone parietal lobes petalia Philipp Gunz Phillip Tobias photography precuneus primate brain sexual dimorphism shape analysis Simon Neubauer social primatology species concept subparietal sulcus sulcal patterns sulci symbolic thinking Taung child University of Colorado University of Liverpool visuospatial integration
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