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104
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Dataset results
104 results for “modal data”
A multi-modal human neuroimaging dataset for data integration: simultaneous EEG and fMRI acquisition during a motor imagery neurofeedback task: XP1
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Data supporting: Improved Tangential Interpolation-based Multi-input Multi-output Modal Analysis of a Full Aircraft
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Data for Scalable parametric encoding of multiple modalities
<p>Two folders with figures created using Generative Encoding, using data from Stenbeck et al [1]:</p> <p> </p> <p>Folder 1 - epithelial_immune_transition</p> <p>This contains in-silico perturbations of epithelial and immune genes. Using generative encoders, the transformation begins with a histology to gene expression transformation, a perturbation of the gene expression vector, followed by an inverse transformation back to histology.</p> <p> </p> <p>Folder 2 - heatmap_he_et_al</p> <p>This contains in-silico transformation of histology tissue to gene expression. It is similar to the first folder, yet is only a single transformation (without an inverse) from histology to gene expression.</p> <p> </p> <p> </p> <p>[1] Stenbeck, Linnea; Bergenstråhle, Ludvig; Lundeberg, Joakim; Borg, Åke (2021), “Human breast cancer in situ capturing transcriptomics”, Mendeley Data, V5, doi: 10.17632/29ntw7sh4r.5</p> <p> </p>
Data for: Investigating signal modalities of aposematism in a poison frog
<p>Aposematic species combine a conspicuous signal with a secondary defense, the majority of which are studied in the context of a visual signal. While multimodality of the aposematic signal appears to be common in invertebrate species, we know very little about the presence or absence of multimodality in vertebrates. Here we examine the possibility of multimodality of aposematism in the green and black poison frog, <em>Dendrobates auratus. </em>Using a non-visual predator (the cat-eyed snake, <em>Leptodeira annulata</em>) and extractions of chemicals in frog skins, we test whether there is sufficient non-visual information for predators to avoid this aposematic species without using visual cues. We found that experienced predators avoid chemicals in this poison frog's skin by olfactory cues alone in trials with live frogs and extracts from captive poison frogs, whereas extracts from wild poison frogs did not lead to avoidance behaviors in predators. Further, in our limited sampling, naïve predators demonstrate no avoidance. This not only indicates that predators can make informed decisions from the frog's odor but also indicates that avoidance based on olfactory cue is a learned response.</p>
Data for: Bi-modal response strategy in Daphnia to ambush predation risk
<p>Predation, a well-established major selective force, can manifest through either consumptive or non-consumptive effects. The relative impact of such effects is predicted to vary depending on the predator hunting strategy. In aquatic systems, great attention has been paid to coursing predators, such as fish, and their effects on the behaviour of zooplankton. However, less information is available regarding more ambush-style predators. To remedy this paucity, we utilised a 3D-tracking platform to record groups of <em>Daphnia </em>magna under control or predation risk conditions from the ambush, invertebrate predator <em>Erythromma najas</em>. This design allowed us to test if there are anti-predator responses in multiple metrics of swimming behaviours. Furthermore, we recorded actual predation events allowing the distinction between predator exuded info-chemicals and those produced during the predation event. We demonstrate that predation risk was greatest for those that swam at 85% of the available depth and averaged 8.1 mm/s. Examining each individuals swimming behaviour separately shows that predation risk did not exert an impact on any of the prey response metrics. Interestingly, however, we show that <em>Daphnia </em>conform to one of two strategies whilst under predation risk; either swim fast high up in the water column or swim slowly close to the bottom. Hence, this dichotomous behaviour is driven by strategies combining speed and depth in different constellations. As a result, our study demonstrates that <em>Daphnia</em> can detect the presence of a predator, but not immediately the act of predation. In a broader context, our findings highlight the importance of considering both the spatial and temporal dimensions of predation events in order correctly detect anti-predator responses.</p> <p>The data here is the raw positions of each individual tracked for the above study.</p>
Data for: Investigating signal modalities of aposematism in a poison frog
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Data from: Shifting balances in the weighting of sensory modalities are predicted by divergence in brain morphology in incipient species of Heliconius butterflies
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Data for: Bi-modal response strategy in Daphnia to ambush predation risk
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Data from: Shared and modality-specific brain regions that mediate auditory and visual word comprehension
<p>Visual speech carried by lip movements is an integral part of communication. Yet, it remains unclear in how far visual and acoustic speech comprehension are mediated by the same brain regions. Using multivariate classification of full-brain MEG data, we first probed where the brain represents acoustically and visually conveyed word identities. We then tested where these sensory-driven representations are predictive of participants' trial-wise comprehension. The comprehension-relevant representations of auditory and visual speech converged only in anterior angular and inferior frontal regions and were spatially dissociated from those representations that best reflected the sensory-driven word identity. These results provide a neural explanation for the behavioural dissociation of acoustic and visual speech comprehension and suggest that cerebral representations encoding word identities may be more modality-specific than often upheld.</p>
Data from: Multi-modal ultra-high resolution structural 7-Tesla MRI data repository
Structural brain data is key for the understanding of brain function and networks, i.e., connectomics. Here we present data sets available from the 'atlasing of the basal ganglia (ATAG)' project, which provides ultra-high resolution 7Tesla (T) magnetic resonance imaging (MRI) scans from young, middle-aged, and elderly participants. The ATAG data set includes whole-brain and reduced field-of-view MP2RAGE and T2*-weighted scans of the subcortex and brainstem with ultra-high resolution at a sub-millimeter scale. The data can be used to develop new algorithms that help building high-resolution atlases both relevant for the basic and clinical neurosciences. Importantly, the present data repository may also be used to inform the exact positioning of electrodes used for deep-brain-stimulation in patients with Parkinson's disease and neuropsychiatric diseases.
Data from: Multi-modal defenses in aphids offer redundant protection and increased costs likely impeding a protective mutualism
1.The pea aphid, Acyrthosiphon pisum, maintains extreme variation in resistance to its most common parasitoid wasp enemy, Aphidius ervi, which is sourced from two known mechanisms: protective bacterial symbionts, most commonly Hamiltonella defensa, or endogenously encoded defenses. We have recently found that individual aphids may employ each defense individually, occasionally both defenses together, or neither. 2.In field populations, Hamiltonella-infected aphids are found at low to moderate frequencies and while less is known about the frequency of resistant genotypes, they show up less often than susceptible genotypes in field collections. To better understand these patterns, we sought to compare the strengths and costs of both types of defense, individually and together, in order to elucidate the selective pressures that maintain multi-modal defense mechanisms or that may favor one over the other. 3.We experimentally infected five aphid genotypes (two lowly and three highly resistant), each with two symbiont strains, Hamiltonella-APSE8 (moderate protection) and Hamiltonella-APSE3 (high protection). This resulted in three sublines per genotype: uninfected, +APSE8, and +APSE3. Each of the fifteen total sublines was first subjected to a parasitism assay to determine its resistance phenotype and in a second experiment a subset were chosen to compare fitness (fecundity and survivorship) in presence and absence of parasitism. 4.In susceptible aphid genotypes, parasitized sublines infected with Hamiltonella generally showed increased protection with direct fitness benefits, but clear infection costs to fitness in the absence of parasitism. In resistant genotypes, Hamiltonella infection rarely conferred additional protection, often further reduced fecundity and survivorship when enemy challenged, and resulted in constitutive fitness costs in the absence of parasitism. We also identified strong aphid-genotype X symbiont-strain interactions, such that the best defensive strategy against parasitoids varied for each aphid genotype; one performed best with no protective symbionts, the others with particular strains of Hamiltonella. 5.This surprising variability in outcomes helps explain why Hamiltonella infection frequencies are often intermediate and do not strongly track parasitism frequencies in field populations. We also find that variation in endogenous traits, such as resistance, among host genotypes may offer redundancy and generally limit the invasion potential of mutualistic microbes in insects.
Data for Wind Energy Science paper "Modal dynamics of structures with bladed isotropic rotors and its complexity for 2-bladed rotors"
<p>The files are data files with model input and Matlab files with model parameters and function that sets up the block matrices of the dynamic model used in the paper. The Matlab script "test_repo.m" shows how to this function with all input.</p>
Data from: Dissecting abstract, modality-specific and experience-dependent coding of affect in the human brain
<p>Emotion and perception are tightly intertwined, as affective experiences often arise from the appraisal of sensory information. Nonetheless, whether the brain encodes emotional instances using a sensory-specific code or in a more abstract manner is unclear. Here, we answer this question by measuring the association between emotion ratings collected during a unisensory or multisensory presentation of a full-length movie and brain activity recorded in typically-developed, congenitally blind and congenitally deaf participants. Emotional instances are encoded in a vast network encompassing sensory, prefrontal, and temporal cortices. Within this network, the ventromedial prefrontal cortex stores a categorical representation of emotion independent of modality and previous sensory experience, and the posterior superior temporal cortex maps the valence dimension using an abstract code. Sensory experience more than modality impacts how the brain organizes emotional information outside supramodal regions, suggesting the existence of a scaffold for the representation of emotional states where sensory inputs during development shape its functioning.</p>
Data and code availibility for the paper "Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multi-modal freezing model" by Alpert et al.
<p>The data and codes used in the paper "Ice-nucleating agents in sea spray aerosol identified and quantified with a holistic multi-modal freezing model" by Alpert et al., published in <em>Science Advances</em> are included in this collection. Detailed descriptions of the files are given in the readme file.</p>
Data Repository for the article: "Control of multi-modal scattering in a microwave frequency comb"
<p><strong>Abstract:</strong></p> <p>Control over the coupling between multiple modes of a frequency comb is an important step toward measurement-based quantum computation with a continuous-variable system.<br>We demonstrate the creation of square-ladder correlation graphs in a microwave comb with 95 modes.<br>The graphs are engineered through precise control of the relative phase of three pumps applied to a Josephson parametric oscillator. <br>Experimental measurement of the mode scattering matrix is in good agreement with theoretical predictions based on a linearized equation of motion of the parametric oscillator. <br>The digital methods used to create and measure the correlations are easily scaled to more modes and more pumps, with the potential to tailor a specific correlation graph topology.</p> <p> </p> <p>Article DOI:</p> <p>ArXiV: <a href="https://doi.org/10.48550/arXiv.2402.09068">arXiv.2402.09068</a></p> <p> </p> <p><strong>Content:</strong></p> <p>This repository contains the datased used in the article "Control of multi-modal scattering in a microwave frequency comb". Scripts to generate the figures are also included.</p>
Representation learning for multi-modal spatially resolved transcriptomics data
<p>This folder contains the already unified input used for the models. The raw data is referenced here:</p> <ul> <li>LIBD Human DLPFC dataset is available at <a href="https://github.com/LieberInstitute/HumanPilot">https://github.com/LieberInstitute/HumanPilot</a> and <a href="http://research.libd.org/spatialLIBD" rel="nofollow">http://research.libd.org/spatialLIBD</a>;</li> <li>Human Breast Cancer - Zenodo <a href="https://doi.org/10.5281/zenodo.4739739" rel="nofollow">https://doi.org/10.5281/zenodo.4739739</a>,</li> <li>Human Liver Normal and Cancer - <a href="https://nanostring.com/products/cosmx-spatial-molecular-imager/human-liver-rna-ffpe-dataset/" rel="nofollow">https://nanostring.com/products/cosmx-spatial-molecular-imager/human-liver-rna-ffpe-dataset/</a>.</li> </ul>
Data for figures in: Modal petrology and mineral chemistry of Apollo 17 Drive Tube Section 73002
<p class="MsoNormal">The Apollo 17 mission returned samples from the Taurus-Littrow Valley of the Moon. Key features of the site are a basaltic valley floor partially enclosed by South Massif and North Massif mountains and the Sculptured Hills, which consist of feldspar-rich, highland lithologies. A recently opened soil core sampled an inferred landslide deposit at the base of South Massif. Study of a suite of polished grain mounts of six size fractions of <1 mm material from 14 depth intervals of the ~18 cm soil column shows that all size fractions from the upper 5–6 cm are richer in agglutinates, an indicator of surface exposure, than the deeper material, which is among the most agglutinate-poor Apollo 17 regolith reported. Regolith breccia, crystalline melt breccia, and noritic igneous rocks are the most abundant fragment types. Mare basalt, glasses, and agglutinates are minor components throughout. The observations are consistent with deposition of the highland-dominated material in a landslide, which did not preserve any previous stratigraphy, followed by in situ maturation, with only minor additions of mare lithologies from nearby basaltic regolith, due to the inefficiency of lateral transport on the Moon.</p>
Data for figures in: Modal petrology and mineral chemistry of Apollo 17 Drive Tube Section 73002
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Data from: Multi-modal ultra-high resolution structural 7-Tesla MRI data repository
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Data from: Multi-modal defenses in aphids offer redundant protection and increased costs likely impeding a protective mutualism
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ScienceDex guides
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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.