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6 results for “Dominant Frequency”
Theta dominates cross-frequency coupling in hippocampal-medial entorhinal circuit during awake-behavior in rats
<p>Hippocampal theta and gamma rhythms are hypothesized to play a role in the physiology of higher cognition. Prior research has reported that an offset in theta cycles between the entorhinal cortex, CA3, and CA1 regions promotes independence of population activity across the hippocampus. In line with this idea, it has recently been observed that CA1 pyramidal cells can establish and maintain coordinated place cell activity intrinsically, with minimal reliance on afferent input. Counter to these observations is the contemporary hypothesis that CA1 neuron activity is driven by a gamma oscillation arising from the medial entorhinal cortex (MEC) that relays information by providing precisely timed synchrony between MEC and CA1. Reinvestigating this in rats during appetitive track running, we found that theta is the dominant frequency of cross-frequency coupling between the MEC and hippocampus, with hippocampal gamma largely independent of entorhinal gamma.</p>
Theta dominates cross-frequency coupling in hippocampal-medial entorhinal circuit during awake-behavior in rats
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Data from: The frequency, magnitude, and spatial distribution of heart rot in dominant temperate tree species in a forest dynamics plot
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Data to accompany: Seedling responses to soil moisture amount versus pulse frequency in a dominant semi-arid shrub
<p>The timing, frequency and quantity of rainfall is rapidly changing in dryland regions, leading to profound alterations to dryland plant communities. Understanding dryland plant responses to future rainfall scenarios is crucial for implementing proactive management strategies, particularly in light of intensive changes to land cover concurrent with climate change. One such change is woody plant encroachment, an increasing abundance of woody plant species in areas formerly dominated by grasslands or savannas. The continued encroachment of <em>P.</em> <em>velutina</em> will depend, in part, on seedling capacity to establish and thrive under future climate conditions. Seedling performance is primarily impacted by soil moisture conditions that are governed by precipitation amount (quantity) and frequency. We hypothesized that H1) seedling performance would be enhanced by both greater soil moisture and greater pulse frequency, such that seedlings with similar mean soil moisture would perform best under high moisture pulse frequency. Alternatively, H2) mean soil moisture would have greater influence than pulse frequency, such that at a given pulse frequency would have little influence on seedling performance. The hypotheses were tested by growing 256 <em>P. velutina </em>seedlings under two distinct soil moisture treatments, each of which was maintained by two different pulse frequency treatments. Contrary to H1, mean soil moisture had far greater impact than pulse frequency on seedling growth, photosynthetic gas exchange, leaf chemistry and biomass allocation. These results indicate that <em>P. velutina</em> seedling establishment may be more responsive to rainfall amount than rainfall frequency.</p>
Supplementary Dataset 1 for: High-frequency variability dominates potential connectivity between remote coral reefs
<p>Supplementary Dataset 1 (revision 1) for High-frequency variability dominates potential connectivity between remote coral reefs, containing scripts and data required to reproduce figures in the preprint.</p>
Data to accompany: Seedling responses to soil moisture amount versus pulse frequency in a dominant semi-arid shrub
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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.
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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.