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Título

Primary visual cortex in neandertals as revealed from the occipital remains from the El Sidrón site, with emphasis on the new SD-2300 specimen

AutorGarcía-Tabernero, Antonio ; Peña-Melián, Ángel; Rosas, Antonio
Palabras claveBrodmann area 17
El Sidrón
Calcarine sulcus
Lunate sulcus
Neandertal
Occipital pole fossa
Paleoneurology
Petalias
Primary visual cortex V1
Venous sinus drainage
Visual acuity
Fecha de publicación6-abr-2018
EditorJohn Wiley & Sons
CitaciónJournal of Anatomy 233: 33-45 (2018)
ResumenThe comparative analysis of the endocranial surface of the El Sidrón new occipital fragment SD-2300 shows meaningful differences in the configuration of the occipital pole region between neandertals and anatomically modern humans (AMH). The particular asymmetries found in neandertals in the venous sinus drainage and the petalial patterns are recognizable in this new specimen as well. In addition, the supra- and infracalcarine fossae of the occipital pole region appear to deviate obliquely from the mid-line when compared with sapiens. Due to the excellent preservation conditions of SD-2300, the main sulci and gyri of the occipital pole area have been identified, this degree of detail being uncommon in a fossil specimen; in general, the gyrification pattern is similar to AMH, but with some notable differences. Particularly interesting is the description of the lunate and the calcarine sulci. The lunate sulcus is located close to the occipital pole, in a similar posterior position to in other Homo species. Regarding the calcarine sulcus, there are significant differences in the primary visual cortex, with the V1 area, or Brodmann area 17, being larger in Homo neanderthalensis than in Homo sapiens. This may lead to greater visual acuity in neandertals than in sapiens.
Descripción[EN] The chapter of the dissertation: Paleoneurología comparada de los linajes Neandertal y Sapiens. Nuevos evidencias aportadas por los fósiles de El Sidrón (Asturias), reproduces entirely the manuscript of: Primary visual cortex in neandertals as revealed from the occipital remains from the El Sidrón site, with emphasis on the new SD-2300 specimen.Journal of Anatomy 233: 33-45 (2018). [ES] El capítulo de la tesis doctoral: Paleoneurología comparada de los linajes Neandertal y Sapiens. Nuevos evidencias aportadas por los fósiles de El Sidrón (Asturias), reproduce íntegramente la información del artículo: Primary visual cortex in neandertals as revealed from the occipital remains from the El Sidrón site, with emphasis on the new SD-2300 specimen.Journal of Anatomy 233: 33-45 (2018).
Versión del editorhttp://dx.doi.org/10.1111/joa.12812
URIhttp://hdl.handle.net/10261/167350
DOI10.1111/joa.12812
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