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262 results for “theta”
Local activation of CA1 pyramidal cells induces theta phase precession
<p>Example dataset used to demonstrate the algorithm for detecting and quantifying temporal phase precession of spikes, described in Sloin et al., 2023, "Local activation of CA1 pyramidal cells induced theta phase precession". The code is available at at: https://github.com/EranStarkLab/PhasePrecession. The full dataset for the paper is avaliable at: <a href="https://doi.org/10.5061/dryad.1c59zw431">https://doi.org/10.5061/dryad.1c59zw431</a>.</p>
Theta: portfolio of CEGAR-based analyses with dynamic algorithm selection (Competition Contribution): Tool Archive
<p>This archive contains the tool archive of Theta for SV-COMP 2022, which was also added as a release to the tool (<a href="https://github.com/ftsrg/theta/releases/tag/svcomp22-v1">here</a>).</p>
Theta on SV-COMP 2022: Comparative Evaluation of Results (artifact)
<p>Comparative evaluation of Theta and some other SV-COMP C verifiers on the dataset of Reach Safety results on SV-COMP 2022.</p> <p>(Artifact for the MSc Project Laboratory 1 report)</p>
Phase separation of competing memories along the human hippocampal theta rhythm.
<p>Data set for Phase separation of competing memories along the human hippocampal theta rhythm.</p>
Cochlear theta activity oscillates in phase opposition during interaural attention
<p>Preprocessed data and analysis-scripts needed to reproduce the figures and statistics of the paper "Cochlear theta activity oscillates in phase opposition during interaural attention".</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>
Memory related processing is the primary driver of human hippocampal theta oscillations
<p>This dataset contains intra-cranial EEG (iEEG) recordings related to the paper: "Memory-related processing is the primary driver of human hippocampal theta oscillations" by Seger et al.</p> <p>The study investigates the role of hippocampal theta oscillations in the human brain during navigation (during which externally oriented sensorimotor processing occurs) and during mental simulation of navigation (when no externally oriented sensorimotor processing is present).</p> <p>The iEEG recordings underwent the initial preprocessing steps as described in the paper and were subsequently downsampled to 250Hz for the purpose of this dataset. The files in this dataset were saved as .MAT files. </p> <p>The dataset includes the following zip files:<br> “Seger_et_al_2023_iEEG_data.zip" </p> <p> </p> <p>Description of data structure:</p> <p>"electrode.info" contains information about subject and electrode contact<br> - electrode.info.subject_ID : participant ID<br> - electrode.info.elec_ID : channel ID <br> - electrode.info.anat_loc : anatomical localization (see paper for methods)<br> - electrode.info.hemi : hemisphere of electrode <br> - electrode.info.env_version : paradigm version </p> <p>"electrode.data" contains all trial level data for this electrode (** Please note that all trial level iEEG data contains a 2 second (500 sample) buffer flanking both ends.)</p> <p>"electrode.data.nav_and_sim_trials" contains all the trial level data for the navigation with mental simulation trials <br> -electrode.data.nav_and_sim_trials.trial_info : information about the navigated / mentally simulated routes (ex. Start and end store, catch trial condition)<br> -electrode.data.nav_and_sim_trials.nav_eeg : raw eeg for each navigation trial<br> -electrode.data.nav_and_sim_trials.nav_eeg_tVect : timeVector corresponding to raw eeg data in ms (t=0 is when the trial begins t(end) - 2000 ms is when trial ends). <br> -electrode.data.nav_and_sim_trials.nav_position : avatar XY position for all time points during navigation trials<br> -electrode.data.nav_and_sim_trials.sim_eeg : raw eeg for each mental simulation trial<br> -electrode.data.nav_and_sim_trials.sim_eeg_tVect : timeVector corresponding to raw eeg data in ms (t=0 is when the trial begins t(end) - 2000 ms is when trial ends). </p> <p>"electrode.data.nav_practice_trials" contains all the trial level data for the navigation practice trials<br> -electrode.data.nav_practice_trials.trial_info : information about the route navigated (ex. Start and end store)<br> -electrode.data.nav_practice_trials.nav_eeg : raw eeg for each practice navigation trial<br> -electrode.data.nav_practice_trials.nav_eeg_tVect : timeVector corresponding to raw eeg data in ms (t=0 is when the trial begins t(end) - 2000 ms is when trial ends). <br> -electrode.data.nav_practice_trials.nav_position : avatar XY position for all time points during practice navigation trials</p> <p><br> "electrode.data.storefront_pres_trials" contains all the trial level data for the storefront presentation trials<br> -electrode.data.storefront_pres_trials.eeg : raw eeg for each storefront presentation<br> -electrode.data.storefront_pres_trials.eeg_tVect : timeVector corresponding to raw eeg data in ms (t=0 is when the trial begins t(end) - 2000 ms is when trial ends). </p> <p>"electrode.data.crosshair_pres_trials" contains all the trial level data for the crosshair presentation trials<br> -electrode.data.crosshair_pres_trials.eeg : raw eeg for each crosshair presentation<br> -electrode.data.crosshair_pres_trials.eeg_tVect : timeVector corresponding to raw eeg data in ms (t=0 is when the trial begins t(end) - 2000 ms is when trial ends).</p>
Data from: Theta-phase-specific modulation of dentate gyrus memory neurons
<p>The theta rhythm, a quasi-periodic 4-10 Hz oscillation, is observed during memory processing in the hippocampus, with different phases of theta hypothesized to separate independent streams of information related to the encoding and recall of memories. At the cellular level, the discovery of hippocampal memory cells (engram neurons), as well as the modulation of memory recall through optogenetic activation of these cells, has provided evidence that certain memories are stored, in part, in a sparse ensemble of neurons in the hippocampus. In previous research, however, engram reactivation has been carried out using open loop stimulation at fixed frequencies; the relationship between engram neuron reactivation and ongoing network oscillations has not been taken into consideration. To address this concern, we implemented a closed-loop reactivation of engram neurons that enabled phase-specific stimulation relative to theta oscillations in the local field potential. Using this real-time approach, we tested the impact of activating engram neurons during the peak (encoding phase) and trough (recall phase) of theta oscillations. Consistent with previously hypothesized functions of theta oscillations in memory function, we show that stimulating engram neurons at the trough of theta is more effective in eliciting behavioral recall than either fixed frequency stimulation or stimulation at the peak of theta. Moreover, phase-specific trough stimulation is accompanied by an increase in the coupling between gamma and theta oscillations in CA1 hippocampus. Oure results provide a causal link between phasespecific activation of engram cells and the behavioral expression of memory.</p>
Theta Burst Stimulation to Promote Motor Re-education in Tetraplegia
ClinicalTrials.gov study NCT03277521. IPD Sharing: NO. Countries: 1. Publications: 1.
Theta-Burst-Stimulation in Early Rehabilitation of Stroke
ClinicalTrials.gov study NCT02910024. IPD Sharing: NO. Countries: 1. Publications: 1.
Treatment of Major Depressive Disorder With Bilateral Theta Burst Stimulation
ClinicalTrials.gov study NCT04392947. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Lesion Network MApping Navigated Continuous Theta-burst STimulation for Motor REcovery in Acute Ischemic Stroke
ClinicalTrials.gov study NCT06400407. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Theta-Burst Stimulation in Major Depressive Episodes With Mixed Characteristics.
ClinicalTrials.gov study NCT04123301. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Biomarkers of Theta Burst Stimulation in Major Depressive Disorder
ClinicalTrials.gov study NCT03626181. IPD Sharing: Not stated. Countries: 1. Publications: 10.
Accelerated Theta Burst in Chronic Pain: A Biomarker Study
ClinicalTrials.gov study NCT03984201. IPD Sharing: NO. Countries: 1. Publications: 30.
Non-invasive Intermittent Theta Burst Stimulation of the Dorsolateral Prefrontal Cortex in People With Functional Movement Disorders
ClinicalTrials.gov study NCT03263013. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Continuous Theta Burst Stimulation (cTBS) and Postoperative Delirium
ClinicalTrials.gov study NCT04661904. IPD Sharing: NO. Countries: 1. Publications: 1.
Effects of Intermittent Theta Burst Stimulation (iTBS) on Motor Recovery of Lower Extremity in Chronic Stroke Patients
ClinicalTrials.gov study NCT07073235. IPD Sharing: NO. Countries: 1. Publications: 10.
The Effect of Intermittent Theta Burst Stimulation (iTBS) in Patients With Alcohol Use Disorder
ClinicalTrials.gov study NCT03932149. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Theta Burst Brain Stimulation in Diabetic Neuropathy Patients With Neuropathic Pain: Investigating Neural Mechanisms
ClinicalTrials.gov study NCT04988321. IPD Sharing: NO. Countries: 1. Publications: 1.
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International Brain Laboratory public data
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OpenNeuro
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