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Dataset results
12 results for “Premotor cortex”
WaveMAP analysis of extracellular waveforms from monkey premotor cortex during decision-making
<p>Cortical circuits are thought to contain a large number of cell types that coordinate to produce behavior. Current <em>in vivo</em> methods rely on clustering of specified features of extracellular waveforms to identify putative cell types, but these capture only a small amount of variation. Here, we develop a new method (<em>WaveMAP</em>) that combines non-linear dimensionality reduction with graph clustering to identify putative cell types. We apply <em>WaveMAP</em> to extracellular waveforms recorded from dorsal premotor cortex of macaque monkeys performing a decision-making task. Using <em>WaveMAP</em>, we robustly establish eight waveform clusters and show that these clusters recapitulate previously identified narrow- and broad-spiking types while revealing previously unknown diversity within these subtypes. The eight clusters exhibited distinct laminar distributions, characteristic firing rate patterns, and decision-related dynamics. Such insights were weaker when using feature-based approaches. <em>WaveMAP</em> therefore provides a more nuanced understanding of the dynamics of cell types in cortical circuits.</p>
Initial conditions combine with sensory evidence to induce decision-related dynamics in premotor cortex
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Data from: Progressively shifting patterns of co-modulation among premotor cortex neurons carry dynamically similar signals during action execution and observation
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Data from: Simple visual stimuli are sufficient to drive responses in action observation and execution neurons in the macaque ventral premotor cortex
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WaveMAP analysis of extracellular waveforms from monkey premotor cortex during decision-making
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Sensitivity of occipito-temporal cortex, premotor and Broca's areas to visible speech gestures in a familiar language
<p>fMRI dataset related to the study "Sensitivity of occipito-temporal cortex, premotor and Broca’s areas to visible speech gestures in a familiar language". The dataset includes SPM analyses for the contrasts of interest described in the paper.</p>
Differential influence of the dorsal premotor and primary somatosensory cortex on corticospinal excitability during kinesthetic and visual motor imagery: a low-frequency repetitive transcranial magnetic stimulation study
<p>Consistent evidence suggests that motor imagery involves activation of several sensorimotor areas also involved during action execution, including the dorsal premotor (dPMC) and primary somatosensory cortex (S1). However, it is still unclear whether their involvement is specific for either kinesthetic or visual imagery or whether they contribute to motor activation for both modalities. Although sensorial experience during motor imagery is often multimodal, identifying the modality exerting greater facilitation of the motor system may allow to optimize the functional outcomes of rehabilitation interventions. In a sample of healthy adults, we combined 1-HZ repetitive transcranial magnetic stimulation (TMS) to suppress neural activity of the dPMC, S1, and primary motor cortex (M1) with single-pulse TMS over M1 for measuring cortico-spinal excitability (CSE) during kinesthetic and visual motor imagery of finger movements as compared to static imagery conditions. We found that rTMS over both dPMC and S1, but not over M1, modulated the muscle-specific facilitation of CSE during kinesthetic, but not during visual motor imagery. Furthermore, dPMC-rTMS suppressed the facilitation of CSE, whereas S1-rTMS boosted it. The results highlight the differential pattern of cortico-cortical connectivity within the sensorimotor system during the mental simulation of the kinesthetic and visual consequences of actions.</p>
Glutamate Modulation of tDCS Over Premotor Cortex Combined With Peripheral Nerve Stimulation Promoted Observation-execution-related Cortical Excitability and Motor Learning
ClinicalTrials.gov study NCT06694909. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Transcranial Direct Current Stimulation Associate to Constraint Induced Movement Therapy Over Premotor Cortex in Severe Stroke
ClinicalTrials.gov study NCT02628561. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Premotor Cortex: A New Target for Stroke Motor Rehabilitation
ClinicalTrials.gov study NCT02565199. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Investigating the Role of the Premotor Cortex in Higher Cognitive Functions
ClinicalTrials.gov study NCT00842413. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Motor and Premotor Cortex Stimulation for Treatment of Secondary Focal Dystonia With Striato Palliadal Lesion : Evaluation of Safety and Effectiveness
ClinicalTrials.gov study NCT00505323. 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.