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622 results for “macaques”
Comparative basolateral amygdala connectomics reveals dissociable single-neuron projection patterns to frontal cortex in macaques and mice
<p>Zeisler et al., (2024) <em>Current Biology</em></p> <p> </p> <p>This repository contains data and code necessary to generate the main figures contained in the paper.</p> <p> </p> <p>The macaque data used is available at: https://zenodo.org/records/8319819</p>
Fig. 2 in Seasonal Variations in the Assembly of Dung Beetles (Coleoptera: Geotrupidae and Scarabaeidae) Attracted to Macaque Feces in Temperate Forests in Japan
Fig. 2. Monthly capture rates (number of traps in which dung beetles were captured/total number of trap nights) of dung beetles on Kinkazan and Yakushima Islands, Japan. No sampling was done during June and September on Kinkazan, and during May on Yakushima. Numbers above the bars are the number of trap nights.
Coda and data for "A natural disaster exacerbates and redistributes disease risk across free-ranging macaques by altering social structure"
<p>This Zenodo repository contains the data and code for the article entitled "<strong>A natural disaster exacerbates and redistributes disease risk across free-ranging macaques by altering social structure</strong>". </p>
Data from: Recurrent circuit dynamics underlie persistent activity in the macaque frontoparietal network
<p>During delayed oculomotor response tasks, neurons in the lateral intraparietal area (LIP) and the frontal eye fields (FEF) exhibit persistent activity that reflects the active maintenance of behaviorally relevant information. Despite many computational models of the mechanisms of persistent activity, there is a lack of circuit-level data from the primate to inform the theories. To fill this gap, we simultaneously recorded ensembles of neurons in both LIP and FEF while macaques performed a memory-guided saccade task. A population encoding model revealed strong and symmetric long-timescale recurrent excitation between LIP and FEF. Unexpectedly, LIP exhibited stronger local functional connectivity than FEF, and many neurons in LIP had longer network and intrinsic timescales. The differences in connectivity could be explained by the strength of recurrent dynamics in attractor networks. These findings reveal reciprocal multi-area circuit dynamics in the frontoparietal network during persistent activity and lay the groundwork for quantitative comparisons to theoretical models.</p>
fMRI free-viewing data, resting-state and structural in macaques associated with publication 'Social prediction modulates activity of macaque superior temporal cortex'
<p>Using a free-viewing and functional magnetic resonance imaging, we show that activity in a region of the macaque middle superior temporal (midSTS) cortex was specifically modulated by the predictability of social interactions. This region could be distinguished from other temporal regions involved in face processing. Using resting-state fMRI in anesthetized macaques, we showed that the connectivity between the face-responsive areas and the social prediction area was more integrated in macaques than in humans. We reproduce the social prediction results in a replication study and provide a control to rule out oculomotor implication through the FEF in the social prediction activity of the midSTS, using Transcranial Ultrasound Stimulation. Using standard geometric shape movement stimuli, we also show that macaques do not attribute mental state to shapes.</p>
Kinematic gait parameters of terrestrial and arboreal locomotion in Japanese macaques
<p>This study used three-dimensional videography to quantify kinematic parameters thought to be associated with locomotor stability while two Japanese macaques walked on terrestrial and simulated arboreal substrates (a horizontal pole, which was narrow relative to the animal's body width). The parameters investigated included temporal-spatial gait variables, those associated with compliant walking, the height of the shoulder and hip, and hand and foot clearance during the swing phase. We found that there were many individual differences in kinematic adjustments made by the monkeys during arboreal locomotion. More importantly, the results were consistent between the monkeys for three parameters: maximum hand clearance, maximum hip height, and maximum foot clearance. The monkeys showed lower maximum hand and foot clearances during arboreal locomotion than during terrestrial locomotion, indicating that the hands and feet were kept close to the substrate surface during the swing phase. They also showed lower maximum hip heights during arboreal locomotion, suggesting that their whole-body centers of mass were lowered. These consistent kinematic adjustments can be interpreted as strategies for enhancing stability and reducing the risk of falling from a height.</p>
Human data - Functionally homologous representation of vocalizations in the auditory cortex ofhumans and macaques
<p>Human dataset used in the article Bodin et al., Functionally homologous representation of vocalizations in the auditory cortex of humans and macaques, Current Biology (2021), https://doi.org/10.1016/j.cub.2021.08.043</p>
Macaque data - Functionally homologous representation of vocalizations in the auditory cortex ofhumans and macaques
<p>Macaque dataset used in the article Bodin et al., Functionally homologous representation of vocalizations in the auditory cortex of humans and macaques, Current Biology (2021), https://doi.org/10.1016/j.cub.2021.08.043</p>
Neural effects of continuous theta-burst stimulation in macaque parietal neurons
<p><span>Theta-burst transcranial magnetic stimulation (TBS) has become a standard non-invasive technique to induce offline changes in cortical excitability in human volunteers. Yet, TBS suffers from a high variability across subjects. A better knowledge about how TBS affects neural activity in vivo could uncover its mechanisms of action and ultimately allow its mainstream use in basic science and clinical applications. To address this issue, we applied continuous TBS (cTBS, 300 pulses) in awake behaving rhesus monkeys and quantified its after-effects on neuronal activity. Overall, we observed a pronounced, long-lasting and highly reproducible reduction in neuronal excitability after cTBS in individual parietal neurons, with some neurons also exhibiting periods of hyperexcitability during the recovery phase. These results provide the first experimental evidence of the effects of cTBS on single neurons in awake behaving monkeys, shedding new light on the reasons underlying cTBS variability.</span></p>
Code and dataset for neural dynamics of causal inference in the macaque frontoparietal circuit
<p>Natural perception relies inherently on inferring causal structure in the environment. However, the neural mechanisms and functional circuits essential for representing and updating the hidden causal structure and corresponding sensory representations during multisensory processing are unknown. To address this, monkeys were trained to infer the probability of a potential common source from visual and proprioceptive signals based on their spatial disparity in a virtual reality system. The proprioceptive drift reported by monkeys demonstrated that they combined previous experience and current multisensory signals to estimate the hidden common source and subsequently updated the causal structure and sensory representation. Single-unit recordings in premotor and parietal cortices revealed that neural activity in the premotor cortex represents the core computation of causal inference, characterizing the estimation and update of the likelihood of integrating multiple sensory inputs at a trial-by-trial level. In response to signals from the premotor cortex, neural activity in the parietal cortex also represents the causal structure and further dynamically updates the sensory representation to maintain consistency with the causal inference structure. Thus, our results indicate how the premotor cortex integrates previous experience and sensory inputs to infer hidden variables and selectively updates sensory representations in the parietal cortex to support behavior. This dynamic loop of frontal-parietal interactions in the causal inference framework may provide the neural mechanism to answer long-standing questions regarding how neural circuits represent hidden structures for body awareness and agency.</p>
Gene expression of CD4+ T cells in the liver of SIV-infected macaques.
<p>Analysis of RNA transcripts of CD4+ T cells from the liver of healthy (n=3) and SIV infected (n=3) rhesus macaques using NovaSeq 6000 flowcell S1 at the Next-Generation Sequencing Platform, Genomics Center (CHU de Québec-Université Laval Research Center, Québec City, Canada). Gene symbols and amounts of transcripts per million (TPM) are listed for each condition.</p>
Neural activity during a simple reaching task in macaques is counter to gating and rebound in basal ganglia-thalamic communication
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Data from: Estimating densities and spatial distribution of a commensal primate species, the long-tailed macaque (Macaca fascicularis)
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Data from: Rhesus macaques use probabilities to predict future events
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Female ornaments: is red skin color attractive to males and related to condition in rhesus macaques?
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Data from: Phenotypic plasticity in the mandibular morphology of Japanese macaques: captive–wild comparison
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Acoustic data in four species of macaques
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Social contagion of affiliation in female macaques
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Differentially evolutionary pathways and their interactions in genes expressed in brain of human and macaque
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Kinematic gait parameters of terrestrial and arboreal locomotion in Japanese macaques
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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.