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dc.contributor.author Berns, Gregory S.
dc.contributor.author Ashwell, Ken W. S.
dc.date.accessioned 2017-01-18T23:28:02Z
dc.date.available 2017-01-18T23:28:02Z
dc.date.issued 2017-01-18
dc.identifier doi:10.5061/dryad.9g54r
dc.identifier.citation Berns GS, Ashwell KWS (2017) Reconstruction of the cortical maps of the Tasmanian tiger and comparison to the Tasmanian devil. PLOS ONE 12(1): e0168993.
dc.identifier.issn 1932-6203
dc.identifier.uri http://hdl.handle.net/10255/dryad.133890
dc.description The last known Tasmanian tiger (Thylacinus cynocephalus)–aka the thylacine–died in 1936. Because its natural behavior was never scientifically documented, we are left to infer aspects of its behavior from museum specimens and historical recollections of bushmen. Recent advances in brain imaging have made it possible to scan postmortem specimens of a wide range of animals, even more than a decade old. Any thylacine brain, however, would be more than 100 years old. Here, we show that it is possible to reconstruct white matter tracts in two thylacine brains. For functional interpretation, we compare to the white matter reconstructions of the brains of two Tasmanian devils (Sarcophilus harrisii). We reconstructed the cortical projection zones of the basal ganglia and major thalamic nuclei. The basal ganglia reconstruction showed a more modularized pattern in the cortex of the thylacine, while the devil cortex was dominated by the putamen. Similarly, the thalamic projections had a more orderly topography in the thylacine than the devil. These results are consistent with theories of brain evolution suggesting that larger brains are more modularized. Functionally, the thylacine’s brain may have had relatively more cortex devoted to planning and decision-making, which would be consistent with a predatory ecological niche versus the scavenging niche of the devil.
dc.relation.haspart doi:10.5061/dryad.9g54r/1
dc.relation.haspart doi:10.5061/dryad.9g54r/2
dc.relation.haspart doi:10.5061/dryad.9g54r/3
dc.relation.haspart doi:10.5061/dryad.9g54r/4
dc.relation.isreferencedby doi:10.1371/journal.pone.0168993
dc.subject marsupial
dc.subject brain
dc.subject DTI
dc.title Data from: Reconstruction of the cortical maps of the Tasmanian tiger and comparison to the Tasmanian devil
dc.type Article
dwc.ScientificName Thylacinus cynocephalus
dwc.ScientificName Sarcophilus harrisii
dc.contributor.correspondingAuthor Berns, Gregory
prism.publicationName PLOS ONE

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Title thylacine_smithsonian
Downloaded 30 times
Description Structural images and outputs from BEDPOSTX and DTIFIT for the Smithsonian thylacine brain (USNM 125345).
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Title thylacine_sydney
Downloaded 14 times
Description Structural images and outputs of BEDPOSTX and DTIFIT for the Australian Museum thylacine brain (M18411). Contains very high resolution structural (0.1 x 0.1 x 0.2 mm).
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Title devil_smithsonian
Downloaded 18 times
Description Structural images and outputs from BEDPOSTX and DTIFIT for the Smithsonian Tasmanian devil brain (USNM 142598).
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Title devil_STDP
Downloaded 15 times
Description Structural images and outputs from BEDPOSTX and DTIFIT from Tasmanian devil brain (provided by the Save the Devil Project).
Download devil_STDP.zip (26.55 Mb)
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