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20 results for “local field potential”
Local field potentials reflect cortical population dynamics in a region-specific and frequency-dependent manner
<p>The spiking activity of populations of cortical neurons is well described by a small number of population-wide covariance patterns, the "latent dynamics". These latent dynamics are largely driven by the same correlated synaptic currents across the circuit that determine the generation of local field potentials (LFP). Yet, the relationship between latent dynamics and LFPs remains largely unexplored. Here, we characterised this relationship for three different regions of primate sensorimotor cortex during reaching. The correlation between latent dynamics and LFPs was frequency-dependent and varied across regions. However, for any given region, this relationship remained stable across behaviour: in each of the primary motor and premotor cortices, the LFP-latent dynamics correlation profile was remarkably similar between movement planning and execution. These robust associations between LFPs and neural population latent dynamics help bridge the wealth of studies reporting neural correlates of behaviour using either type of recording.</p>
LFP Data to estimate post-synaptic potentials from local field potentials with reverse neural mass model
<p>All data used in the paper name "Reconstruction of post-synaptic potentials by reverse modeling of local field potentials" that is under submission at PLOS Computational Biology.</p> <p>All data are given in Matlab files (.mat) and text files (.csv)</p>
Local field potentials reflect cortical population dynamics in a region-specific and frequency-dependent manner
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Broadband local field potential in area MT of marmoset monkey
<p>Broadband local field potential (0.1-500 Hz) in area MT of marmoset monkey.</p>
Local Field Potentials in Dystonia
ClinicalTrials.gov study NCT07309133. IPD Sharing: NO. Countries: 1. Publications: 1.
Characterization of Complex Pulse Shapes in Deep Brain Stimulation for Movement Disorders Using EEG and Local Field Potential Recordings
ClinicalTrials.gov study NCT04658641. IPD Sharing: NO. Countries: 1. Publications: 3.
Closed-Loop Therapeutic Refinement Using Local Field Potentials in Parkinson's Disease
ClinicalTrials.gov study NCT07105280. IPD Sharing: UNDECIDED. Countries: 1. Publications: 1.
Data from: Computing the local field potential (LFP) from integrate-and-fire network models
Leaky integrate-and-fire (LIF) network models are commonly used to study how the spiking dynamics of neural networks changes with stimuli, tasks or dynamic network states. However, neurophysiological studies in vivo often rather measure the mass activity of neuronal microcircuits with the local field potential (LFP). Given that LFPs are generated by spatially separated currents across the neuronal membrane, they cannot be computed directly from quantities defined in models of point-like LIF neurons. Here, we explore the best approximation for predicting the LFP based on standard output from point-neuron LIF networks. To search for this best "LFP proxy", we compared LFP predictions from candidate proxies based on LIF network output (e.g, firing rates, membrane potentials, synaptic currents) with "ground-truth" LFP obtained when the LIF network synaptic input currents were injected into an analogous three-dimensional (3D) network model of multi-compartmental neurons with realistic morphology, spatial distributions of somata and synapses. We found that a specific fixed linear combination of the LIF synaptic currents provided an accurate LFP proxy, accounting for most of the variance of the LFP time course observed in the 3D network for all recording locations. This proxy performed well over a broad set of conditions, including substantial variations of the neuronal morphologies. Our results provide a simple formula for estimating the time course of the LFP from LIF network simulations in cases where a single pyramidal population dominates the LFP generation, and thereby facilitate quantitative comparison between computational models and experimental LFP recordings in vivo.
Raw data for: Okada et al., Photopharmacological modulation of hippocampal local field potential by caged-glutamate with MicroLED probe
<p>Matlab data of LFPs (sampling rate, 1k/sec; microV)</p>
Intraoperative Investigation of a Directional Lead and Local Field Potentials for the Optimization of Stimulation Efficacy
ClinicalTrials.gov study NCT03630302. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Data from: Computing the local field potential (LFP) from integrate-and-fire network models
Open the record for dataset details and reuse information.
Local Fields Potentials Recorded From Deep Brain Stimulating Electrodes
ClinicalTrials.gov study NCT02071446. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Local Field Potentials Recorded From Deep Brain Stimulating (DBS) Electrodes
ClinicalTrials.gov study NCT01427530. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Detection of Local Field Potentials in the Ventral Tegmental Area of the Midbrain in Chronic Cluster Headache Patients
ClinicalTrials.gov study NCT05857098. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Identifying Local Field Potential Biomarkers for Obsessive-compulsive Disorder Treatment With Deep Brain Stimulation
ClinicalTrials.gov study NCT06542224. IPD Sharing: Not stated. Countries: 1. Publications: 0.
High Order Spectral Analysis of Local Field Potential Data on a Subgroup of Parkinson's Disease Patients Who Are Carriers of Mutations in the Glucocerebrosidase (GBA) Gene Undergoing DBS Electrode Pla
ClinicalTrials.gov study NCT04268030. IPD Sharing: NO. Countries: 1. Publications: 0.
Concurrent DBS Local Field Potential Analysis and Stimulation in a Closed-Loop Neuromodulation Device
ClinicalTrials.gov study NCT02731365. IPD Sharing: NO. Countries: 1. Publications: 0.
Basal Ganglia Local Field Potentials in Gait and Speech
ClinicalTrials.gov study NCT01905995. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Identifying Local Field Potential Biomarkers for Treatment-Resistant Major Depression With Deep Brain Stimulation
ClinicalTrials.gov study NCT06542094. IPD Sharing: NO. Countries: 1. Publications: 0.
Characterizing the Specificity and Stability of Local Field Potentials in the Globus Pallidus Internus of Patients Undergoing Deep Brain Stimulation for Parkinson's Disease
ClinicalTrials.gov study NCT02438033. IPD Sharing: Not stated. Countries: 0. Publications: 0.
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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.