Vault and base

This week we have published a study on the integration between the parietal and temporal morphology in the human skull. Modern humans display large and bulging parietal lobes and bones, and large and projecting temporal lobes. It is possible that the latter (the anterior displacement of the temporal lobes) can be a spatial secondary consequence of the former (the enlargement of the parietal district). This survey on adult skulls suggests that this is not the case: parietal bulging and temporal displacement are apparently independent and not related. Nonetheless, when one of these districts undergoes a major variation (bulging in the case of the parietal bone, vertical stretching in the case of the middle cranial fossa), the other undergoes a spatial rotation: shape does not change, but the orientation varies according to the global cranial modification. The enlargement/reduction of the parietal bone have thus a major effect on head orientation, and it is also associated with facial proportions. Hence, it turns out that the general enlargement of the parietal district, a species-specific character of modern human brain and skull, has probably influenced the functional axis of the head, with possible consequences on body organization and posture. These results once more recall the importance of an integrated analysis between brain and braincase and, more generally, of a system-based approach to functional craniology.

0 Responses to “Vault and base”



  1. Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s




Enter your email address to follow this blog and receive notifications of new posts by email.

RSS Brain News

RSS Cognitive archaeology

  • Oldest Human Footprints
    Klint Janulis, UCCS alum and on the Center for Cognitive Archaeology board of directors, was recently on the team that uncovered Saudi footprints believed to be the oldest found on the Arabian peninsula. Read their scientific journal article here: https://advances.sciencemag.org/content/6/38/eaba8940 Other news stories about this discovery:Yahoo News: https: […]

RSS The Skull Box

  • Homo erectus temporal lobes
    This week, we provide a new study of temporal lobe evolution in the Homo erectus hypodigm inferred from the middle cranial fossa (MCF) of the skull. Following from our earlier publication this year where we determined a strong reliability for MCF metrics to predict the temporal lobe volume of the brain in extant anthropoids and […]

RSS Anthropology

  • The Genetics of the Transatlantic Slave Trade
    Between the 16th and 19th centuries, approximately 12.5 million people were violently deported from their homes in Africa to the Americas by slavers. As current events have shown, the destruction of communities, cultures and families have had everlasting ramifications which are felt a century and half later. Some of the less tangible pains is the... Continue […]

RSS Human Evolution

  • An error has occurred; the feed is probably down. Try again later.

RSS Neurophilosophy

  • Researchers develop non-invasive deep brain stimulation method
    Researchers at MIT have developed a new method of electrically stimulating deep brain tissues without opening the skullSince 1997, more than 100,000 Parkinson’s Disease patients have been treated with deep brain stimulation (DBS), a surgical technique that involves the implantation of ultra-thin wire electrodes. The implanted device, sometimes referred to as […]

Disclaimer

This blog publishes texts and comments of the author, which can not be referred to institutions or contexts outside of the blog itself. The published material may be partly derived or reported from the Web, and therefore evaluated in the public domain. If some content violates copyright or if it is considered inappropriate, please contact me, to promptly remove it. On the other hand, please cite this source whenever using images or texts from this website.

%d bloggers like this: