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Dataset results
231 results for “functional connectivity”
Maximum entropy model estimates functional connectivity
<p>Tools to estimate brain connectivity have been useful to improve our understanding of brain functioning. Reduced models ofcultured neurons are often used to study the behavior of neuronal networks, including functional connectivity and how it mightbe affected by external stimuli. Cultured neurons tend to be active in ensembles, and when pairs of neurons show significantsynchronicity in their firing patterns they are said to be functionally connected. The most common methods to infer functionalconnections are based on pair-wise cross correlation between activity patterns of (small groups of) neurons. However, thesemethods are not designed to be used during external stimulation, and they are relatively insensitive to inhibitory connections.Maximum Entropy (MaxEnt) models may provide a conceptually different method to infer functional connectivity, with thepotential benefit to estimate functional connectivity in the presence of an external stimulus and to infer excitatory as well asinhibitory connections. These models do not use pairwise comparison, but are based on probability distributions of sets ofneurons that are synchronously active in discrete time bins. We investigate the ability of the MaxEnt models to infer functionalconnectivity, using electrophysiological recordings fromin vitroneuronal cultures on micro electrode arrays. We comparefunctional connectivity as inferred by MaxEnt models to that obtained by conditional firing probabilities (CFP), an establishedcross-correlation based method. We show that MaxEnt models provide connectivity estimates that correlate well with CFPoutcomes. In addition, stimulus-induced connectivity changes were detected by MaxEnt models, and were of the samemagnitude as those detected by CFP.</p>
Data: Regularized and Opposite spin-scaled functionals from Møller-Plesset adiabatic connection -- higher accuracy at lower cost (arXiv.2307.02715)
<p>Data corresponding to the work <em>Regularized and Opposite spin-scaled functionals from Møller-Plesset adiabatic connection -- higher accuracy at lower cost (</em>https://arxiv.org/abs/2307.02715). </p> <p>The zip file contains:</p> <p>- The data of the S22, NCCE31, S66x8, B30, B30x8, x40 and water hexamers datasets.</p> <p>- the data_com and data_frag files contain E_HF, Ex, MP2-SS, MP2-OS, LDA-int, GEA-int for respectively the complex and sum of the fragments for all the complexes (.npy and .csv).</p> <p>- data_kappa_com and data_frag_com files contain [kappa_os 0.6, kappa_ss 0.6], [kappa_os 0.7, kappa_ss 0.7], ..., [kappa_os 1.7, kappa_ss 1.7] for respectively the complex and sum of the fragments for all the complexes (.npy and .csv).</p> <p>-See README.txt for more information</p>
Si/SiGe QuBus for single electron information-processing devices with memory and micron-scale connectivity function
<p>Dataset and analysis scripts for the arXiv paper: Si/SiGe QuBus for single electron information-processing devices with memory and micron-scale connectivity function (submitted for peer-review)</p>
Enhancing Function in Later Life: Exercise and Functional Network Connectivity
ClinicalTrials.gov study NCT02068612. IPD Sharing: Not stated. Countries: 1. Publications: 4.
COVID 19 ANTOBODIES IN PREGNANT WOMEN AND THEIR CONNECTION TO BETA CELL FUNCTION IN THE FETUS
ClinicalTrials.gov study NCT04860908. IPD Sharing: YES. Countries: 1. Publications: 1.
tDCS Effects on GABA Concentration and Brain Functional Connectivity in Older Adults of Retirement Age
ClinicalTrials.gov study NCT02794259. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Altered Structural-functional Connectivity Coupling on Chronic Subcortical Stroke
ClinicalTrials.gov study NCT05648552. IPD Sharing: UNDECIDED. Countries: 1. Publications: 1.
Bridging Brain Structure and Function by Correlating Structural Connectivity, Cortico-Cortical Transmission and Direct Electro-Stimulation
ClinicalTrials.gov study NCT03503110. IPD Sharing: NO. Countries: 1. Publications: 6.
Psychostimulants Effects on Brain Functional Connectivity in Youth With Attention Deficit Hyperactivity Disorder
ClinicalTrials.gov study NCT02318017. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Structural and Functional Connectivity of Frontostriatal and Frontoparietal Networks as Endophenotypes of ADHD
ClinicalTrials.gov study NCT01682915. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Developmental Trajectory of Brain Structural Connectivity and Cognitive Function From Childhood to Adulthood
ClinicalTrials.gov study NCT01677793. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Melatonin Treatment and Inflammation, Oxidative Stress and Autonomic Function in Connection With Surgery
ClinicalTrials.gov study NCT00311259. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Longitudinal Changes of Brain Functional Connectivity in Migraine
ClinicalTrials.gov study NCT03487978. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Functional Connectivity Measurement After Severe Traumatic Brain Injury
ClinicalTrials.gov study NCT02647996. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Functional Connectivity Alterations in Suicidal Patients Among Opioid Users
ClinicalTrials.gov study NCT05489042. IPD Sharing: NO. Countries: 1. Publications: 13.
MEG and DTI of Neural Function and Connectivity in Traumatic Brain Injury
ClinicalTrials.gov study NCT01298557. IPD Sharing: Not stated. Countries: 1. Publications: 5.
Sleep Inertia and Functional Connectivity
ClinicalTrials.gov study NCT03058159. IPD Sharing: NO. Countries: 1. Publications: 1.
Resting State Functional Connectivity in Cluster Headache
ClinicalTrials.gov study NCT06206772. IPD Sharing: Not stated. Countries: 1. Publications: 8.
tDCS Effects on GABA Concentration and Brain Functional Connectivity in Older Adults Of Working Age
ClinicalTrials.gov study NCT02794272. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Elucidating the Temporality of Structural and Functional Connectivity Changes in Essential Tremor After Successful Deep Brain Stimulation to the Dentato-rubro-thalamic Tract
ClinicalTrials.gov study NCT04758624. IPD Sharing: NO. 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.