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116 results for “social brain”
Data from: Coevolution of cultural intelligence, extended life history, sociality, and brain size in primates
Explanations for primate brain expansion and the evolution of human cognition and culture remain contentious despite extensive research. While multiple comparative analyses have investigated variation in brain size across primate species, very few have addressed why primates vary in how much they use social learning. Here, we evaluate the hypothesis that the enhanced reliance on socially transmitted behavior observed in some primates has coevolved with enlarged brains, complex sociality, and extended lifespans. Using recently developed phylogenetic comparative methods we show that, across primate species, a measure of social learning proclivity increases with absolute and relative brain volume, longevity (specifically reproductive lifespan), and social group size, correcting for research effort. We also confirm relationships of absolute and relative brain volume with longevity (both juvenile period and reproductive lifespan) and social group size, although longevity is generally the stronger predictor. Relationships between social learning, brain volume, and longevity remain when controlling for maternal investment and are therefore not simply explained as a by-product of the generally slower life history expected for larger brained species. Our findings suggest that both brain expansion and high reliance on culturally transmitted behavior coevolved with sociality and extended lifespan in primates. This coevolution is consistent with the hypothesis that the evolution of large brains, sociality, and long lifespans has promoted reliance on culture, with reliance on culture in turn driving further increases in brain volume, cognitive abilities, and lifespans in some primate lineages.
Data from: Repetitive concussive traumatic brain injury interacts with post-injury foot shock stress to worsen social and depression-like behavior in mice
The debilitating effects of repetitive concussive traumatic brain injury (rcTBI) have been increasingly recognized in both military and civilian populations. rcTBI may result in significant neurological, cognitive, and affective sequelae, and is often followed by physical and/or psychological post-injury stressors that may exacerbate the effects of the injury and prolong the recovery period for injured patients. However, the consequences of post-injury stressors and their subsequent effects on social and emotional behavior in the context of rcTBI have been relatively little studied in animal models. Here, we use a mouse model of rcTBI with two closed-skull blunt impacts 24 hours apart and social and emotional behavior testing to examine the consequences of a stressor (foot shock fear conditioning) following brain injury (rcTBI). rcTBI alone did not affect cued or contextual fear conditioning or extinction compared to uninjured sham animals. In the sucrose preference test, rcTBI animals had decreased preference for sucrose, an anhedonia-like behavior, regardless of whether they experienced foot shock stress or were non-shocked controls. However, rcTBI and post-injury foot shock stress had synergistic effects in tests of social recognition and depression-like behavior. In the social recognition test, animals with both injury and shock were more impaired than either non-shocked injured mice or shocked but uninjured mice. In the tail suspension test, injured mice had increased depression-like behavior compared with uninjured mice, and shock stress worsened the depression-like behavior only in the injured mice with no effect in the uninjured mice. These results provide a model of subtle emotional behavioral deficits after combined concussive brain injury and stress, and may provide a platform for testing treatment and prevention strategies for social behavior deficits and mood disorders that are tailored to patients with traumatic brain injury.
Data from: Rearing group size determines social competence and brain structure in a cooperatively breeding cichlid
Social animals can greatly benefit from well-developed social skills. Because the frequency and diversity of social interactions often increase with the size of social groups, the benefits of advanced social skills can be expected to increase with group size. Variation in social skills often arises during ontogeny, depending on early social experience. Whether variation of social-group sizes affects development of social skills and related changes in brain structures remains unexplored. We investigated whether, in a cooperatively breeding cichlid, early group size (1) shapes social behavior and social skills and (2) induces lasting plastic changes in gross brain structures and (3) whether the development of social skills is confined to a sensitive ontogenetic period. Rearing-group size and the time juveniles spent in these groups interactively influenced the development of social skills and the relative sizes of four main brain regions. We did not detect a sensitive developmental period for the shaping of social behavior within the 2-month experience phase. Instead, our results suggest continuous plastic behavioral changes over time. We discuss how developmental effects on social behavior and brain architecture may adaptively tune phenotypes to their current or future environments.
Data from: Distributed cognition and social brains: reductions in mushroom body investment accompanied the origins of sociality in wasps (Hymenoptera: Vespidae)
The social brain hypothesis assumes the evolution of social behaviour changes animals' ecological environments, and predicts evolutionary shifts in social structure will be associated with changes in brain investment. Most social brain models to date assume social behaviour imposes additional cognitive challenges to animals, favouring the evolution of increased brain investment. Here, we present a modification of social brain models, which we term the distributed cognition hypothesis. Distributed cognition models assume group members can rely on social communication instead of individual cognition; these models predict reduced brain investment in social species. To test this hypothesis, we compared brain investment among 29 species of wasps (Vespidae family), including solitary species and social species with a wide range of social attributes (i.e. differences in colony size, mode of colony founding and degree of queen/worker caste differentiation). We compared species means of relative size of mushroom body (MB) calyces and the antennal to optic lobe ratio, as measures of brain investment in central processing and peripheral sensory processing, respectively. In support of distributed cognition predictions, and in contrast to patterns seen among vertebrates, MB investment decreased from solitary to social species. Among social species, differences in colony founding, colony size and caste differentiation were not associated with brain investment differences. Peripheral lobe investment did not covary with social structure. These patterns suggest the strongest changes in brain investment—a reduction in central processing brain regions—accompanied the evolutionary origins of eusociality in Vespidae.
The Turone Equine Social Brain Dataset
<p>The Turone Equine Social Brain Dataset (TESBD) is a part of the EQUISOBRAIN project, funded by the European HORIZON 2020 Marie Skłodowska-Curie Actions (MSCA) (project number: 101033271, MSCA European Individual Fellowship) awarded to Mathilde Valenchon (host supervisor Matthieu Keller), and by the 'Institut Français du Cheval et de l'Equitation' (IFCE). For a full description of the project please consult the main publication [Valenchon M et al 2025].</p> <p><br>This dataset is composed by :</p> <p> 1/ a collection of MRI brain anatomical, functional and diffusion raw data available in nifti format and organized as BIDS format acquired from 23 Welsh foals (12 females and 11 males, 7-months old months) on the day of the scanning on a 3Tesla magnet (SIEMENS) at PIXANIM Plateform (https://www6.val-de-loire.inrae.fr/pixanim_eng/) between January and February 2022.<br>This dataset has been used to create the The Turone Equine Brain Templates and Atlases (https://zenodo.org/records/10731031). MRI data have been analysed using the methods available on David A. Barrière Github Page (https://github.com/DavidBarriere/Equisobrain).</p> <p> 2/ Statistical analysis leaded by Gaëlle Lefort. The documents present all the analyses carried out in the main publication [Valenchon et al. 2025]. Behavioural, MRI, weighting and physiological data collected on foals in 2021 between 1 to 7 months will be found within the data folder. Statistical analysis details will be found in Equisobrain_2014.html and Equisobrain_2014.qmd files.<br><br> </p> <p> </p>
Magnetic Resonance Imaging of the Brain in Social and Emotional Reasoning
ClinicalTrials.gov study NCT00060853. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Stimulating the Social Brain
ClinicalTrials.gov study NCT03374631. IPD Sharing: NO. Countries: 1. Publications: 0.
Brain Changes During Social Reward Psychotherapy for Mid- and Late-Life Suicidality
ClinicalTrials.gov study NCT05925322. IPD Sharing: YES. Countries: 1. Publications: 0.
Investigating the Effects of Social Stress on Brain Imaging
ClinicalTrials.gov study NCT05591404. IPD Sharing: YES. Countries: 1. Publications: 0.
A New Intervention for Social Communication Skills Following Brain Injury
ClinicalTrials.gov study NCT02211339. IPD Sharing: YES. Countries: 0. Publications: 1.
Social Safety Learning in the Brain Oxytocin System
ClinicalTrials.gov study NCT05968651. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Direction of biological motion affects early brain activation: a link with social cognition
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Data from: Structural alterations of the social brain: a comparison between schizophrenia and autism
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Data from: Coevolution of cultural intelligence, extended life history, sociality, and brain size in primates
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Data from: Cooperative defence operates by social modulation of biogenic amine levels in the honeybee brain
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Data from: Rearing group size determines social competence and brain structure in a cooperatively breeding cichlid
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Data from: Distributed cognition and social brains: reductions in mushroom body investment accompanied the origins of sociality in wasps (Hymenoptera: Vespidae)
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Reversible plasticity in brain size, behavior, and physiology characterizes caste 2 transitions in a socially flexible ant (Harpegnathos saltator)
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Data from: Repetitive concussive traumatic brain injury interacts with post-injury foot shock stress to worsen social and depression-like behavior in mice
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Transcriptome profiling of spleen, blood and hemi-brain of social stressed C57B6 mice exhibiting PTSD like features
GEO Series GSE68076. Mus musculus. 116 samples. Type: Expression profiling by array.
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.