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Sourcing high tissue quality brains from deceased wild primates with known socio-ecology

MPG-Autoren

Crockford,  Catherine
Chimpanzees, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;

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Eichner,  Cornelius       
Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

Girard-Buttoz,  Cédric
Chimpanzees, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;

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Jäger,  Carsten       
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Kirilina,  Evgeniya       
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Lipp,  Ilona       
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Edwards,  Luke       
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

Kopp,  Kathrin Susanne
Department of Human Behavior Ecology and Culture, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;

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Paquette,  Michael       
Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Pine,  Kerrin       
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

Haun,  Daniel Benjamin Moritz
Comparative Cognitive Anthropology, MPI for Psycholinguistics, Max Planck Society;

McElreath,  Richard
Department of Human Behavior Ecology and Culture, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;

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Anwander,  Alfred       
Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

Gunz,  Philipp
Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;

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Morawski,  Markus       
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Friederici,  Angela D.       
Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Weiskopf,  Nikolaus       
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

Leendertz,  Fabian H.
Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;

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Wittig,  Roman M.       
Chimpanzees, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;

Externe Ressourcen

https://besjournals.onlinelibrary.wiley.com/doi/10.1111/2041-210X.14039
(Ergänzendes Material)

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Graessle_2023.pdf
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Zitation

Gräßle, T., Crockford, C., Eichner, C., Girard-Buttoz, C., Jäger, C., Kirilina, E., et al. (2023). Sourcing high tissue quality brains from deceased wild primates with known socio-ecology. Methods in Ecology and Evolution, 14(8), 1906-1924. doi:10.1111/2041-210X.14039.


Zitierlink: https://hdl.handle.net/21.11116/0000-000B-4521-2
Zusammenfassung
The selection pressures that drove dramatic encephalisation processes through the mammal lineage remain elusive, as does knowledge of brain structure reorganisation through this process. In particular, considerable structural brain changes are present across the primate lineage, culminating in the complex human brain that allows for unique behaviours such as language and sophisticated tool use. To understand this evolution, a diverse sample set of humans' closest relatives with varying socio-ecologies is needed. However, current brain banks predominantly curate brains from primates that died in zoological gardens. We try to address this gap by establishing a field pipeline mitigating the challenges associated with brain extractions of wild primates in their natural habitat.
The success of our approach is demonstrated by our ability to acquire a novel brain sample of deceased primates with highly variable socio-ecological exposure and a particular focus on wild chimpanzees. Methods in acquiring brain tissue from wild settings are comprehensively explained, highlighting the feasibility of conducting brain extraction procedures under strict biosafety measures by trained veterinarians in field sites.
Brains are assessed at a fine-structural level via high-resolution MRI and state-of-the-art histology. Analyses confirm that excellent tissue quality of primate brains sourced in the field can be achieved with a comparable tissue quality of brains acquired from zoo-living primates.
Our field methods are noninvasive, here defined as not harming living animals, and may be applied to other mammal systems than primates. In sum, the field protocol and methodological pipeline validated here pose a major advance for assessing the influence of socio-ecology on medium to large mammal brains, at both macro- and microstructural levels as well as aiding with the functional annotation of brain regions and neuronal pathways via specific behaviour assessments.