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1,506 results for “objects”
Posterior default mode network activity underlies distracted interoceptive attention and provides an objective basis for low mindfulness and depression
<p>Interoceptive attention to internal sensory signals is fundamental to mindfulness. However, it is difficult to measure objectively, and the vast majority of investigations of the neural correlates of mindfulness-based attention rely on subjective and retrospective measures of distraction. In this study, we measured consistency of response times on a breath-monitoring task (instruction to respond every 2 breath cycles) to objectively measure interoceptive attention in individuals across the lifespan (15–91 years of age, n=324). Consistently timed responses were indicative of on-task attention, whereas variable delayed responses indicated distraction or mind-wandering. Signifying the importance of interoceptive attention consistency, we observed that this measure was positively correlated across subjects with performance across several exteroceptive cognitive tasks. Electroencephalographic (EEG) source reconstruction demonstrated that distraction on the eyes-closed task was associated with elevated alpha band (8–12 Hz) brain activity, particularly in posterior default mode network (pDMN) brain regions. The neural data revealed four important findings: 1) pDMN brain activity was inversely linked with functional connectivity to the fronto-parietal network (FPN), suggesting that pDMN-FPN interactions play a key role in the regulation of pDMN activity during interoceptive attention. 2) pDMN activity on distracted trials was inversely correlated with trait-level mindfulness. 3) A key hub of the pDMN, the isthmus region of the posterior cingulate cortex (ICC), showed elevated activity on distracted trials in individuals with self-reported depressive symptoms. 4) In an independent second experiment, pDMN activity was adaptively modulated by task difficulty that invoked different levels of distraction. These results identify an EEG-based neurophysiological marker (elevated pDMN alpha activity) underlying interoceptive distraction, which is correlated with subjective markers of mindfulness and depression and that can be adaptively modulated. Our findings, thus, provide a direct link between a neurophysiological substrate of interoceptive attention, and subjective ratings of mindfulness and depressed mood.</p>
Objective Assessment of Live-streaming Vs Face-to-face Teaching Method Effectiveness in Training Simple Wound Suturing Skill to Surgical Clerkship
<p><strong>Objective Assessment of Live-streaming Vs Face-to-face Teaching Method Effectiveness in Training Simple Wound Suturing Skill to Surgical Clerkship </strong></p>
Rotating Features for Object Discovery
<p>This repository contains the 4Shapes datasets from the paper "Rotating Features for Object Discovery" (<a href="https://arxiv.org/abs/2306.00600">link</a>) by Sindy Löwe, Phillip Lippe, Francesco Locatello and Max Welling.</p> <p>The <strong>4Shapes dataset</strong> comprises grayscale images of dimensions 32 x 32, each containing four distinct white shapes (square, up/downward facing triangle, circle) on a black background. The dataset consists of 50,000 images in the train set, and 10,000 images for the validation and test sets, respectively. All pixel values fall within the range [0,1].</p> <p>The <strong>4Shapes RGB(-D)</strong> datasets follow the same general setup, but randomly samples the color of each shape. To achieve this, we create sets of potential colors with varying sizes. Each set is generated by uniformly sampling an offset value within the range [0,1], and subsequently producing different colors by evenly dividing the hue space, starting from this offset value. The saturation and value are set to one for all colors, and the resulting HSV color representations are converted to RGB. To create the RGB-D variant, we incorporate a depth channel to each image and assign a unique depth value within the range [0,1] to every object, maintaining equal distances between them.</p> <p>For more details on how to use these datasets, see <a href="https://github.com/loeweX/RotatingFeatures/">our GitHub repository</a>.</p> <p> </p>
Seurat objects associated with the tonsil cell atlas
<p>In the context of the Human Cell Atlas, we have created a single-cell-driven taxonomy of cell types and states in human tonsils. This repository contains the Seurat objects derived from this effort. In particular, we have datasets for each modality (scRNA-seq, scATAC-seq, CITE-seq, spatial transcriptomics), as well as cell type-specific datasets. Most importantly, this is the input that we used to create the HCATonsilData package, which allows programmatic access to all this datasets within R.</p> <p>Version 2 of this repository includes cells from 7 additional donors, which we used as a validation cohort to validate the cell types and states defined in the atlas. In addition, in this version we also provide the Seurat object associated with the spatial transcriptomics data (10X Visium), as well as the fragments files for scATAC-seq and Multiome</p>
Supplemental Material for "Objectives and Key Results in Software Teams: Challenges, Opportunities and Impact on Development"
<p>This package contains the research materials that were used for the paper "Objectives and Key Results in Software Teams: Challenges, Opportunities and Impact on Development".</p> <ul> <li><strong>Survey on Goals and Objectives.docx</strong> contains the survey instrument that was used for the study.</li> </ul>
Integrated and Annotated Single Cell Object
<p>Integrated and annotated Seurat object created with the following script: https://doi.org/10.5281/zenodo.8413883<br> using the following studies: <a href="https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE162577">https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE162577</a> <br> <a href="https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE142016">https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE142016</a><br> <a href="https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE135779">https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE135779</a></p>
The benchmark datasets for object tracking in satellite videos
<p>A new type of earth observation satellite uses "gaze" method to continuously observe a certain area, and uses "video recording" method to record dynamic information and analyze its instantaneous characteristics. With the development of dynamic acquisition technology for satellite video data, significant progress in target tracking has been made in recent years, which plays an important role in monitoring rapidly changing events. Different from targets in ordinary videos, targets in satellite videos usually demonstrate the phenomenon of a small size occupation pattern (small) and weak feature capture (dim) due to occlusion, illumination variation, and confusion with the surroundings.</p>
Infrared Salient Object Detection (ISOD)
<p>It is a Thermal Infrared Image dataset that focuses on salient objects.</p>
Object Journeys Somali Gourd
Object Journeys (http://objectjourneys.britishmuseum.org/) is a Heritage Lottery (https://www.hlf.org.uk/) programme at the British Museum where community partners research and explore museum collections, working collaboratively with museum staff to produce displays, events and web content. It's about learning and exploring together and designed to facilitate a genuine sharing and exchanging of knowledge! Gourd Water Vessel (Ubo) from the British Museum collections (http://www.britishmuseum.org/research/collection_online/collection_object_details.aspx?objectId=597651&partId=1) is community-curated and will feature in a upcoming exhibition in the museum's Welcome Gallery. Source: Objaverse 1.0 / Sketchfab
Use of Hand-held Dynamometry to Obtain Objective Measures of Lower Extremity Force Production With Chronic Stroke
ClinicalTrials.gov study NCT05941962. IPD Sharing: NO. Countries: 1. Publications: 7.
The Effect of Rubber Dam on Objective and Subjective Parameters of Stress During Dental Treatment in Children
ClinicalTrials.gov study NCT06779448. IPD Sharing: NO. Countries: 1. Publications: 4.
Development and Validation of a Self-reported Objective Index of Work Disability in Inflammatory Bowel Disease
ClinicalTrials.gov study NCT03872726. IPD Sharing: NO. Countries: 1. Publications: 7.
VivAer: A Correlation Between Symptom Scores and Objective Findings
ClinicalTrials.gov study NCT05573919. IPD Sharing: NO. Countries: 1. Publications: 4.
The Primary Objective of This Study to Evaluate the Safety and Tolerability of IBI334 and Determine the Maximum Tolerated Dose (MTD) and the Recommended Phase 2 Dose (RP2D)and Anti Tumor Activity of I
ClinicalTrials.gov study NCT05774873. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Objective Structured Assessment of Technical Skills (OSATS) Evaluation of Delivery by Vacuum Extraction
ClinicalTrials.gov study NCT02468427. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Evaluation of Objective Perimetry Using Chromatic Multifocal Pupillometer
ClinicalTrials.gov study NCT02014389. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Clinical Determinants of the Discrepancy Between Objective and Subjective Cognition in the Versailles FACE-BD Cohort
ClinicalTrials.gov study NCT04034147. IPD Sharing: NO. Countries: 1. Publications: 7.
Objective Perfusion Rate Assessment by Near-infrared Fluorescence in Ileal Pouch Formation and Ileal-pouch-anal Anastomosis
ClinicalTrials.gov study NCT04695964. IPD Sharing: UNDECIDED. Countries: 1. Publications: 6.
Subjective and Objective Performance With the SONNET2EAS
ClinicalTrials.gov study NCT04721990. IPD Sharing: NO. Countries: 1. Publications: 9.
Effects of Yoga on Objective and Self-reported Health Indicators Among Female and Male Individuals
ClinicalTrials.gov study NCT01305096. IPD Sharing: Not stated. Countries: 1. Publications: 1.
ScienceDex guides
Understand access before you commit
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.