Artificial cranial deformation in South America: a geometric morphometrics approximation

The bioarchaeological record of South America is characterized by the high frequency of individuals with a variety of cranial deformations concentrated in three areas (North-West, Central-West and South) of this subcontinent. The general purpose of this paper is to study the variation in artificial cranial deformation in several regions of Central-West and South of South America. Cranial variation related to artificial deformation of human cranial remains is analyzed by means of geometric morphometrics and multivariate statistic methods. The results of this work show that there are no large differences in variation among states, chiefdoms and bands of hunter-gatherers. The pattern of variation observed in cranial deformation among regions can be interpreted principally according to the chronological and spatial distribution of the cranial samples analyzed.     

Childhood Cranial Trauma from a Late Roman and Merovingian Context from Michelet,Lisieux, France

The Michelet necropolis in Lisieux, France, dating to the late Roman and Merovingian period, comprises of a large number of well‐preserved subadult remains offering a unique opportunity to better understand childhood trauma in the past. The focus of this study was to determine the amount, type and mechanisms of trauma evidenced in subadults from the 4th–8th century AD, and explore potential circumstances surrounding the trauma. The remains of 109 subadults from the Michelet necropolis were examined for the presence of cranial and post‐cranial trauma. Three individuals exhibited perimortem trauma, one individual had an antemortem cranial injury, and no cases of post‐cranial trauma were identified. Cranial trauma affected 4.1% of children with observable cranial remains (N  = 4/97). The children affected were young (2–7 years old), making it unlikely that they would have participated in militaristic activities. Based on the location, morphology and mechanism of injury identified, it is likely that the perimortem injuries sustained by three children were not accidental. The presence of a number of cranial injuries from this site may be related to increased stress in the community related to the decline of the Roman Empire in Gaul, possible raiding barbarian groups during the 4th–5th centuries, or stresses related to the Gallic aristocracy solidifying political powers in northern Gaul during the 5th–7th centuries AD. The consideration and inclusion of childhood trauma in bioarchaeological analyses allows for a more detailed and in‐depth understanding of violence and childhood in the past. Copyright © 2017 John Wiley & Sons, Ltd.     

Survival of a multiple skull trauma: the case of an early neolithic individual from the LBK enclosure at Herxheim (Southwest Germany)

The Early Neolithic enclosure of Herxheim yielded the human remains of more than 450 individuals mainly represented by cranial vaults and numerous fractured cranial and postcranial bones. The skulls were shaped post‐mortem into skull caps by intentional separation of the cranial base and facial bones. One of these calottes revealed four ante‐mortem traumatic lesions and additional cut marks.The defects of this individual were analysed in detail to obtain information on the chronology and consequences of the traumata and manipulations and their probable intention. Four marks could be attributed to at least two violent incidents because of their different stages in the healing process. There is no evidence of cranial surgery, but the individual may have received some medical treatment and social care to survive the injuries without complications. The peri‐mortem cut marks and the post‐mortem intentional shaping of the skull cap, however, can be seen as typical for the treatment of the Herxheim dead and cannot be attributed to violent conflicts. The results support the evidence gained from preliminary examinations of the Herxheim human remains and suggest a more complex view of the final phase of the Linear Pottery Culture (LBK) in southwest Germany. Copyright © 2003 John Wiley & Sons, Ltd.     

The development and evolution of “cerebral thermometry”: The physiology underlying a nineteenth-century approach to cerebral localization and neurological diagnosis

ABSTRACT

Surface thermometers were developed in the latter half of the nineteenth century. From the 1850s through the 1880s, collaborations between physicians, research scientists, and instrument makers produced clear improvements in the technology to measure cranial surface temperatures, with development of self-registering mercury surface thermometers resistant to pressure and little influenced by ambient temperature, apparatus for recording cranial surface temperatures from multiple stations simultaneously, and development of thermoelectric apparatus. Physiologic studies of cranial surface thermometry were conducted over a quarter century from 1861 to 1886. Beginning in the 1860s Albers in Bonn, Germany, and Lombard at Harvard and later in England systematically investigated surface temperatures on the head using surface thermometers and thermoelectric apparatus; they demonstrated that head temperatures were variable over time and across individuals and were not clearly influenced by thinking or muscular contraction but were influenced by ambient air temperature. In 1880 Amidon in the United States claimed that cranial surface thermometry during exertion produced localized increases in surface temperature on the contralateral scalp in a specific pattern (“external motive areas”) indicating underlying brain areas responsible for each movement. Amidon’s results were not reproduced by experienced physiologists in England or France. Contemporaries recognized that significant technical and practical problems limited the accuracy and reliability of cranial surface thermometry. Physiological studies of cranial surface thermometry ended in the mid 1880s, although some clinicians who were early advocates promoted its use in clinical contexts into the early twentieth century.     

Effects of artificial deformation on cranial morphogenesis in the south central Andes

One of the most interesting issues of the interface between biology and culture is the artificial deformation of the skull. This modification is produced during early morphogenesis through the use of devices that alter the normal growth and development, to obtain a culturally established model. This paper, using a large cranial sample from the South Central Andes (1586 individuals), describes and documents a detailed morphometric study of the changes affecting the vault, cranial base, face, orbits and nasal region resulting from the tabular erect (TE), tabular oblique (TO), circular erect (CE) and circular oblique (CO) deformations with respect to the model without deformation. Data from 17 metric variables were processed by a one‐way ANOVA and LSD test for paired comparisons. All of the deformation types produce significant morphometric divergence in most of the anatomical structures of the skull. The TE exhibits: a restriction of antero‐posterior growth producing expansion in cranial width and height, frontal flattening, shortening of the face and cranial base, widening of the face, increased nasal and orbit height (ORH) and a foramen magnum size increase. The TO exhibits: most change reflected in the widening of the cranial vault, shortening of the cranial base and face, frontal flattening, increased nasal and ORH and foramen magnum size decrease. The CE style exhibits: a decrease in cranial width and strong increase in the cranial height, a reduction in frontal width, expansion of the cranial base and face, increased nasal and ORH, orbital widening and a foramen magnum size increase. The CO style exhibits: a decrease of the cranial vault's width and height, expansion along its length, stretching of the cranial base and face, reduced frontal width, fronto‐malar and biorbitary elongation of the face and further development of foramen magnum. Copyright © 2010 John Wiley & Sons, Ltd.     

Multifocal eosinophilic granuloma with a possible trepanation in a fourteenth century Greek young skeleton

Multiple lytic lesions in the cranial remains of a young adolescent from medieval Corinth in Greece, display characteristics best associated with multifocal eosinophilic granuloma. Some of the lesions have marginal sclerosis indicative of healing. The lesions vary in size from less than one centimeter in diameter to over two centimeters. The larger lesions, in particular, appear to be the result of confluence between two or more lytic foci. These lesions, rarely described in archaeological skeletal material, result from a pathological disturbance within the reticuloendothelial system. One of the cranial lesions has a different appearance from the other lesions and may have been produced by a therapeutic trepanation. © 1997 John Wiley & Sons, Ltd.     

Patterns of Cranial Trauma in a Prehistoric Population from Central California

Evidence of cranial trauma was investigated in a skeletal sample from the site CA-Ala-329 located on the eastern side of San Francisco Bay, Central California. The sample included 365 crania, including 134 adult males, 104 adult females, 22 adults of indeterminate sex and 105 subadults. Evidence of cranio-facial fracture was found in eight individuals, one of whom is an adolescent. Thus, the frequency in adult crania of traumatic injury is 7/260 (2.7 per cent). Of the seven individuals of known sex displaying such cranial trauma, all are male. The injuries are generally suggestive of some form of interpersonal aggression, with five healed vault fractures, one lesion with an embedded obsidian fragment (a probable projectile point) and two healed facial fractures. Further clear evidence of interpersonal aggression has been previously determined in this sample and has been reported at even higher levels elsewhere in California. © 1997 by John Wiley & Sons, Ltd.     

Αge‐associated Variation and Sexual Dimorphism in Adult Cranial Morphology: Implications in Anthropological Studies

The current paper explores the impact of age and sex on adult cranial shape and size variation in the documented collections from St Bride's and Spitalfields. The scope is to assess the extent to which it is valid to pool age and sex groups in inter‐population comparisons that use cranial data. For this purpose, age and sex differences in cranial shape and size were explored using multivariate analysis of variance, Discriminant analysis and Mann–Whitney tests. The results suggest a clear change in cranial shape with increasing age; however, this change is not statistically significant. Therefore, it is justifiable to pool different age groups in bioarchaeological analyses. Increasing age also has a minimal impact on cranial size among females, whereas among males, its impact is small but statistically significant. Finally, cranial shape and size are significantly different between males and females, irrespective of their age. This dimorphism can be used for the assessment of sex, although attention should be given to over‐classification problems when using discriminant analysis. Copyright © 2012 John Wiley & Sons, Ltd.     

A metric study of three types of artificial cranial modification from north‐central Peru

Artificial cranial modification (ACM) involves the alteration of cranial vault shape by cultural means, and is performed during infancy while the cranial bones remain soft and malleable. The direction of normal cranial growth is altered through the application of external forces. In this study, three types of ACM from north‐central Peru (posterior flattening, bilobed and circumferential) were analysed using standard craniometric techniques. The aim was to determine the effects of these forms of ACM on craniofacial morphology, and the extent to which different types of ACM could be distinguished from one another and unmodified crania on the basis of these measurements. Significant differences between artificially modified and unmodified crania, and between different types of ACM, were demonstrated in cranial vault shape for all types. Significant differences in facial morphology were found only in the bilobed group compared with the unmodified crania. Canonical variates analysis (discriminant analysis) confirmed that major differences between modification types and unmodified crania were in measurements and angles of the cranial vault. While the results show some similarities to previous studies, they add to the variability in the patterns and extent of differences documented to date. It is suggested, based on these results and visual observations, that interpopulation variation in ACM within major modification categories may explain some of the variability in results between studies, an explanation which has previously received insufficient recognition but which remains to be tested since varied methodology between studies may also be a contributory factor. While previous studies have often sought to generalise about the effects of ACM, the examination of the differences between populations even within major ACM categories may offer new insight into cultural variation in modification techniques between populations and the nature of craniofacial development. Copyright © 2009 John Wiley & Sons, Ltd.     

A discriminant analysis of harappan civilization human populations

A series of commonly occurring cranial measurements for Harappan Indian populations was considered. Stepwise discriminant analysis showed that there is morphological divergence between rural and urban populations, as well as within the settlement of Harappa. Also, it seems that the analysis of cranial measurements alone will not confirm the Gandhara Grave Complex as belonging to early Indo-European speakers in India.     

The development and evolution of “cerebral thermometry”: Clinical applications of a nineteenth-century approach to cerebral localization and neurological diagnosis

ABSTRACT

Surface thermometers were developed in the latter half of the nineteenth century. In 1877, Broca, already famous for his contributions to the cerebral localization of nonfluent aphasia, presented his first clinical observations on cranial surface temperatures: In two cases, cranial surface temperatures were decreased over a middle cerebral artery infarction, and increased in surrounding areas, which Broca attributed to “compensatory hyperaemia.” As Broca made apparent in a later report in 1879, he had used a “thermometric crown,” an apparatus consisting of six to eight large-reservoir mercury thermometers strapped against the head. Following Broca’s report, American neurologists reported cases in which cranial surface temperatures were increased either locally over a superficial brain tumor or globally with a cerebral abscess. Despite promising anecdotal reports, contemporaries recognized that significant technical and practical problems limited its accuracy, reliability, and clinical utility. Advocates never demonstrated that this technology provided significant marginal benefit to the medical history and physical examination. The technique fell out of fashion before 1900, though some early advocates promoted it into the early twentieth century. It was ultimately replaced by more effective technologies for cerebral localization and neurological diagnosis.     

Spondylolysis in the lower thoracic–upper lumbar spine in a British medieval population

Spondylolysis is generally a condition of the lower lumbar spine, but occasionally it is observed at cranial to L4. It is generally agreed that spondylolysis in the lower lumbar spine represents fatigue failure of the neural arch. However, whether a biomechanical explanation is adequate to explain lesions cranial to L4 is disputed. Morphological aspects of spondylolysis at T12–L3 (five cases) are compared with those of lesions at L4–L6 (24 cases) in a mediaeval English skeletal series with the aim of shedding light upon any differences in aetiology of lesions at the two sites. It was found that spondylolysis at T12–L3 was more often unilateral than in L4–L6. In T12–L3, clefts more often took an angulated, dog‐leg course across the pars interarticularis, whereas most in L4–L6 were fairly straight and had an oblique orientation. In T12–L3, clefts often had facetted opposing surfaces suggestive of a diarthrodial joint, but this was only seen once in L4–L6. It is suggested on morphological grounds that facetted defects are more likely congenital than acquired. The need for consideration of factors in addition to activity regimes when interpreting spondylolysis in earlier populations is emphasised. Copyright © 2007 John Wiley & Sons, Ltd.     

Occipital perforations in a late neolithic probable aurochs (Bos primigenius bojanus) cranium from Letchworth,Hertfordshire, UK

An example of ante‐mortem occipital perforations in the cranium of a probable aurochs (Bos primigenius) cow from a late Neolithic archaeological site at Letchworth, Hertfordshire is presented. This is the second reported occurrence thus far of cranial perforations in a wild bovid and lends support to a congenital cause of the condition in archaeological domestic cattle skulls. Copyright © 2002 John Wiley & Sons, Ltd.     

Evidence for temporal and social differences in cranial dimensions in Edo‐period Japanese

This study examined the craniometric traits of the Edo‐period (AD1603–1867) human skeletons from the Hitotsubashi site in Tokyo, compared them with temporally and socially various populations, and attempted to detect the morphological differentiation patterns that the Edo‐period Japanese exhibited over time and under those social/environmental conditions. The materials measured here were the townsmen's crania from the Hitotsubashi site, which were dated back to the early half of the Edo period. The observations revealed that the Hitotsubashi samples were more dolichocephalic than any other Edo series and were different from subsequent Edo series in terms of larger maximum cranial length and smaller maximum cranial breadth. The Hitotsubashi samples were definitely in contrast with those of Tentokuji and Shirogane, both of which included a samurai (warrior) class of the late to final Edo period and exhibited the most brachycephalic crania. It is reasonable to assume that the temporal and social situations were possibly related to the observed cranial variation and that the temporal changes in cranial dimensions in pre‐modern Japan might have reflected the nutritional and environmental conditions. Copyright © 2010 John Wiley & Sons, Ltd.     

FOCUS: on the use of the petrous bone for estimating cranial abundance in fossil assemblages

Low representation of braincase bones in zooarchaeological assemblages suggests that skulls have been intensively processed by Levantine Epipalaeolithic foragers; most cranial elements are often unidentifiable and are considered poor candidates for quantifying crania. In contrast, the petrous bone is usually found complete, and was found to be easily identifiable to body size category. Use of the petrous bone in fossil assemblages analyses leads to better estimation of the occurrence of cranial elements, and thus of skeletal part representation. We therefore suggest use of the petrous bone for detecting bone destruction and selective transport in faunal assemblages.     

The Retromolar Space: A Morphological Curiosity Observed Amongst the Protohistoric Arikara and Mandan

The retromolar space (RMS), defined in palaeoanthropology as a space posterior to the third molar, between the distal edge of the tooth and the anterior margin of the ascending ramus when the mandible is held in lateral view, has been described as an autapomorphic trait unique to Neanderthals despite its presence in anatomically modern humans. This study examined RMS prevalence in a sample of protohistoric Arikara and Mandan Amerindians to determine what craniofacial morphology is correlated with the RMS. It was hypothesised that the feature would be present in the Amerindians studied and associated with a long cranial length, a large nasal height, midfacial prognathism, a broad mandible, and dental wear. The results indicated that RMSs were present in the Arikara and Mandan and significantly correlated with cranial length, cranial breadth, nasal height, bizygomatic breadth, basion‐nasion length, basion‐nasiospinale, mandible length, gonial angle, bigonial breadth, and dental wear. Thus, RMSs are associated with a dolichocephalic skull, wide cranial and facial breadth, a prognathic face, large nose and a corresponding wide and long mandible with a reduced gonial angle. This suggests that the RMS is the result of these features merging together in the craniofacial complex and should not be considered a Neanderthal autapomorphy. Copyright © 2015 John Wiley & Sons, Ltd.     

Cranial trauma and treatment: a case study from the medieval cemetery of St. Mary Spital,London

Excavation of the cemetery of the medieval priory of St. Mary‐without‐Bishopsgate, Spitalfields, London from 1998–2001, recovered the remains of over 10,000 individuals. Following initial assessment, skeleton 19893 was found to have suffered three cranial injuries caused by a sharp edged implement. The remains were those of a middle aged adult male of around 172.4 cm in stature, truncated at the hips by a later feature. The remaining elements were well preserved. The cranial injuries were well healed, suggestive of some degree of post‐traumatic care. Evidence of possible surgery was also found. Soft tissue complications would undoubtedly have followed the assault. Battle related trauma was considered, together with evidence of treatment. Whilst the demographic profile of the individual fitted a plausible one for a professional fighter of the medieval period, no firm evidence of occupation could be provided. The case study indicates both the ability of medieval people to survive major trauma and the wealth of information full analysis of the Spitalfields assemblage will provide the osteological community. Copyright © 2004 John Wiley & Sons, Ltd.     

Embryotomy in the 19th Century of Central Italy

An enormous earthquake in L'Aquila in 2009 brought to light human bodies buried in the underground rooms of the medieval St. John the Evangelist church (Casentino, Central Italy). Among the remains, we discovered a human fetus, whose post‐cranial bones were wrapped in bandages and cranial bones were reallocated inside a sort of hood. Anthropometrical investigation revealed an age at death of 29 ± 2 weeks of pregnancy for the little mummy. Radiograph analysis of the fetus showed that the skull was dissected and disconnected from the vertebral column, and the post‐cranial bones were completely disarticulated from the axial skeleton. The body was reassembled in a way of anatomic connection at a later stage. This mummified fetus dated to ad 1840 showed paleopathological evidence of a possible embryotomy and could be a rare and unquestionable case of embryotomy in archaeological context. Copyright © 2014 John Wiley & Sons, Ltd.     

A review of trepanations in Anatolia with new cases

In this study, trepanations in ancient Anatolia were discussed from a historical perspective. Trepanations were studied in respect to temporal and spatial distribution, sex and age distribution, techniques and reasons, completeness, healing and number of holes. Forty individuals from 23 different Anatolian settlements are identified to have undergone trepanations. Cranial trepanations in Anatolia show a distribution over a period of 10 000 years ranging from the Aceramic Neolithic period to the Late Ottoman period and spread to whole Anatolia. The greater majority of the individuals had single trepanation orifices while only four individuals were identified with multiple holes. It is observed that the surgical procedure was predominantly carried out on males in Anatolia. Main techniques of trepanations used in Anatolia are drilling and cutting. Early cases of trepanation were made by drilling; however, this technique has been used for cranial surgery until the Ottoman period. Scraping and rectangular sawing techniques first applied in the Early Bronze Age. The boring‐and‐cutting technique was only applied in the Iron Age. More than half of the trepanations practiced due to cranial trauma. Training and treatment besides of cranial trauma are also considered as likely causes of trepanations in Anatolia. It is concluded that trepanation techniques are similar to South America and the Mediterranean region rather than Europe. Copyright © 2010 John Wiley & Sons, Ltd.     

Gasperini's syndrome: its neuroanatomical basis now and then

Crossed brainstem syndromes consist of ipsilateral impairment of cranial nerves III-XII and contralateral impairment of the pyramidal and sensory tracts. Gasperini's syndrome, described in 1912 by the Italian internist Ubaldo Gasperini, is one of them. It results from a lesion of the caudal pontine tegmentum and is most frequently defined as ipsilateral impairment of cranial nerves V, VI, VII, and VIII and contralateral sensory loss. Since no autopsy was performed to confirm Gasperini's clinical observations, we analyzed all elements of his syndrome from a current perspective as well as in the light of the anatomical knowledge available to him. This resulted in a historical survey of the development of neuroanatomy over the last 300 years.