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119 results for “Brain evolution”
Division of labor and brain evolution in insect societies: neurobiology of extreme specialization in the turtle ant Cephalotes varians
<p>Data associated with the research article, "Division of labor and brain evolution in insect societies: neurobiology of extreme specialization in the turtle ant <em>Cephalotes varians," </em>are contained here. Raw images used to quantify microglomeruli (used raw MG images) and whole mount brain stacks (WM images used), normalized median template brain images and automatic labels generated from them (CV auto) are included as well as spreadsheets that contain brain volume (CV WM data for analysis) and microglomeruli (CV MG data for analysis) data extracted from these images. </p>
Cretaceous bird from Brazil informs the evolution of the avian skull and brain
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Figure 10 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 10. Log-log plots of A, total endocranial volume and body size; B, cerebral volume and body size; C, cerebral volume and total endocranial volume. Closed circles indicate penguin taxa. Paraptenodytes is shown as a closed star. All other avian taxa are indicated by open circles. Dashed lines indicate 95% confidence intervals.
Figure 9 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 9. Computed tomography slices of the skull of A, Spheniscus humboldti and B, Paraptenodytes antarcticus in 1, sagittal and 2–3, coronal planes. Abbreviations: atr, anterior tympanic recess; cc, cranial carotid artery; pt, pituitary space; ta, tuba auditiva.
Figure 7 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 7. Virtual endocasts of the labyrinth of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in posterior aspect. Abbreviations: aa, ampulla of anterior semicircular canal; asc, anterior semicircular canal; cc, common crus; ed, endolymphatic duct; ha, ampulla of horizontal semicircular canal; hsc, horizontal semicircular canal; lc, lagenar canal; pa, ampulla of posterior semicircular canal; psc, posterior semicircular canal; vf, vestibular foramen.
Figure 8 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 8. Virtual endocasts of the brain and labyrinth of A, Paraptenodytes antarcticus (fossil stem penguin) and B, Aptenodytes patagonicus (king penguin) in lateral aspect, illustrating relative size of the labyrinth.
Figure 6 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 6. Virtual endocasts of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in posterior aspect. Abbreviations: c, cerebrum; cb, cerebellum; cca, cranial carotid artery; eov, external occipital vein; fl, floccular lobe; mcv, middle cerebral vein; os, occipital sinus; se, sagittal eminence; II-XI, cranial nerves II-XI.
Figure 5 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 5. Virtual endocasts of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in ventral aspect. Abbreviations: c, cerebrum; cca, cranial carotid artery; fl, floccular lobe; ob, olfactory bulb; ol, optic lobe; pb, pituitary body; II-XI, cranial nerves II-XI.
Figure 4 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 4. Virtual endocasts of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in lateral aspect. Abbreviations: c, cerebrum; cb, cerebellum; cca, cranial carotid artery; fl, floccular lobe; mcv, middle cerebral vein; ob, olfactory bulb; ol, optic lobe; pb, pituitary body; se, sagittal eminence; II-XI, cranial nerves II-XI.
Figure 2 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 2. Virtual endocasts of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in rostral aspect. Olfactory bulbs are slightly truncated in E and F because of scan length. Abbreviations: c, cerebrum; cca, cranial carotid artery; mo, medulla oblongata; ob, olfactory bulb; ol, optic lobe; pb, pituitary body; se, sagittal eminence; II-XI, cranial nerves II-XI.
Figure 1. A in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 1. A, simplified phylogeny of penguins after Ksepka et al. (2006) showing relationships of outgroup taxa, the stem penguin Paraptenodytes antarcticus, and crown clade (Spheniscidae) penguins studied here. B, the fossil skull of Pa. antarcticus (AMNH 3338) reconstructed and rendered from computed tomography scan data. Abbreviation: r, metal rod inserted to display specimen.
Figure 3 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
Figure 3. Virtual endocasts of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in dorsal aspect. Abbreviations: c, cerebrum; cb, cerebellum; fl, floccular lobe; mcv, middle cerebral vein; ob, olfactory bulb; ol, optic lobe; os, occipital sinus; se, sagittal eminence.
First virtual endocast description of an early Miocene representative Pan-Octodontoidea (Caviomorpha, Hystricognathi) and considerations on the early brain evolution in South American rodents
<p><span>The study of the cranial endocast provides valuable information to understand the behavior of an organism since it coordinates sensory information and motor functions. In this work, we describe for the first time the anatomy of the encephalon of an early Miocene pan-octodontoid caviomorph rodent (<em>Prospaniomys</em> <em>priscus</em>) found in the Argentinean Patagonia, based on virtual 3D endocast. This fossil rodent has an endocast morphology here considered ancestral for Pan-Octodontoidea and also other South American caviomorph lineages, such as an encephalon with anteroposteriorly aligned elements, mesencephalon dorsally exposed, well-developed vermis of the cerebellum, rhombic cerebral hemispheres with well-developed temporal lobes. <em>Prospaniomys</em> also has relatively small olfactory bulbs, large paraflocculi of the cerebellum, low endocranial volume, and a degree of neocorticalization. Its EQ is lower compared with Paleogene North American and European non-caviomorph rodents, but slightly higher than several late early and late Miocene caviomorphs. The paleoneurological anatomical information supports the hypothesis that <em>Prospaniomys</em> was a generalist caviomorph rodent with terrestrial habits, and enhanced low-frequency auditory specializations. The scarce paleoneurological information indicates that several endocast characters in caviomorph rodents could change with ecological pressures. This work sheds light on the anatomy and evolution of several paleoneurological aspects of this particular group of South American rodents. </span></p>
Landmark data from Macrì et al. Sci. Adv 2023 "Reconstructing the origin and early evolution of the snake brain "
<p>Landmark dataset from Macrì et al. 2023 "<strong>Reconstructing the origin and early evolution of the snake brain</strong>"</p>
Artificial Intelligence Analysis of Initial Scan Evolution of Traumatic Brain Injured Patient to Predict Neurological Outcome
ClinicalTrials.gov study NCT04058379. IPD Sharing: NO. Countries: 1. Publications: 1.
PRecisiOn Medicine In StrokE: Evolution of Plasma Brain-Derived Tau in Acute Stroke
ClinicalTrials.gov study NCT06121336. IPD Sharing: YES. Countries: 1. Publications: 24.
Brain Derived Neurotrophic Factor Serum Levels Evolution During the Six Months After Alcohol Withdrawal
ClinicalTrials.gov study NCT01491347. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Long-term Clinico-radiological Evolution of Patients With Brain Lesions During Infectious Endocarditis
ClinicalTrials.gov study NCT02252900. IPD Sharing: Not stated. Countries: 1. Publications: 0.
A Longitudinal Assessment of Tumor Evolution in Patients With Brain Cancer
ClinicalTrials.gov study NCT03425292. IPD Sharing: YES. Countries: 1. Publications: 1.
Coordinated evolution of brain size, structure and eye size in Trinidadian killifish
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.