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Proportional Cerebe...
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Stingo Hirmas, Diego VittorioLinköpings universitet,Biologi,Tekniska fakulteten
(författare)
Proportional Cerebellum Size Predicts Fear Habituation in Chickens
- Artikel/kapitelEngelska2022
Förlag, utgivningsår, omfång ...
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2022-02-17
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Frontiers Media SA,2022
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:du-39866
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https://urn.kb.se/resolve?urn=urn:nbn:se:du-39866URI
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https://doi.org/10.3389/fphys.2022.826178DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-183778URI
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https://res.slu.se/id/publ/116514URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Funding Agencies|Swedish FORMASSwedish Research Council Formas [2019-01508]; European Research CouncilEuropean Research Council (ERC)European Commission [FERALGEN 772874]; Swedish Research CouncilSwedish Research CouncilEuropean Commission; Carl Tryggers Stiftelse; Linkoeping University Neuro-network
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The cerebellum has a highly conserved neural structure across species but varies widely in size. The wide variation in cerebellar size (both absolute and in proportion to the rest of the brain) among species and populations suggests that functional specialization is linked to its size. There is increasing recognition that the cerebellum contributes to cognitive processing and emotional control in addition to its role in motor coordination. However, to what extent cerebellum size reflects variation in these behavioral processes within species remains largely unknown. By using a unique intercross chicken population based on parental lines with high divergence in cerebellum size, we compared the behavior of individuals repeatedly exposed to the same fear test (emergence test) early in life and after sexual maturity (eight trials per age group) with proportional cerebellum size and cerebellum neural density. While proportional cerebellum size did not predict the initial fear response of the individuals (trial 1), it did increasingly predict adult individuals response as the trials progressed. Our results suggest that proportional cerebellum size does not necessarily predict an individual's fear response, but rather the habituation process to a fearful stimulus. Cerebellum neuronal density did not predict fear behavior in the individuals which suggests that these effects do not result from changes in neuronal density but due to other variables linked to proportional cerebellum size which might underlie fear habituation.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Barros Da Cunha, FelipeLinköpings universitet,Biologi,Tekniska fakulteten(Swepub:liu)felba40
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Cardoso, Rita FranceLinköpings universitet,Biologi,Tekniska fakulteten(Swepub:liu)n/a
(författare)
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Carra, Laura G.Linköpings universitet,Biologi,Tekniska fakulteten(Swepub:liu)n/a
(författare)
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Rönnegård, LarsSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Högskolan Dalarna,Statistik,Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden,Dalarna Univ, Sweden; Swedish Univ Agr Sci, Sweden,Institutionen för husdjursgenetik (HGEN),Dalarna University(Swepub:slu)47773
(författare)
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Wright, DominicLinköpings universitet,Biologi,Tekniska fakulteten(Swepub:liu)domwr72
(författare)
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Henriksen, RieLinköpings universitet,Biologi,Tekniska fakulteten(Swepub:liu)riehe80
(författare)
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Linköpings universitetBiologi
(creator_code:org_t)
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Sveriges lantbruksuniversitet
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Ingår i:Frontiers in Physiology: Frontiers Media SA131664-042X
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