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4 results for “endogenous rhythms”
Endogenous oscillatory rhythms and interactive contingencies jointly influence infant attention during early infant-caregiver interaction
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Endogenous rhythm shift and adaptation to the tidal environment in the freshwater snail
<p><span>Organisms have an endogenous timekeeping system to coordinate their biological processes with environmental cycles, allowing adaptation to external rhythmic changes in their environment. Modification of biological clocks could contribute to range expansion in a novel rhythmic environment. We hypothesized that populations of freshwater species near estuaries have acquired a circatidal rhythm to synchronize with the tidal cycle. Here, we compared the locomotion activity and gene expression rhythms of the freshwater snail <em>Semisulcospira reiniana</em> between individuals inhabiting freshwater and brackish-water areas. Individuals inhabiting brackish-water areas exhibited a rhythmic activity pattern coordinated with the tidal cycle under both field and laboratory conditions. Individuals inhabiting upstream freshwater areas showed a nocturnal activity pattern. The proportion of circadian oscillating genes was greater in freshwater than </span><span>in </span><span>brackish-water individuals, while that of circatidal oscillating genes was greater in brackish-water than </span><span>in freshwater </span><span>individuals. Interestingly, expression of 16 genes exhibited circadian and circatidal rhythms in freshwater and brackish-water individuals, respectively. Additionally, transcriptome-wide population genetic analyses supported our assumption that these two populations are genetically almost identical. These findings suggest that the slight divergence contributed to the shift in the timekeeping system</span><span>, </span><span>and that endogenous rhythms could differ in their periods between freshwater and brackish-water populations. Our results provide evidence of the evolution of endogenous rhythm via range expansion to novel rhythmic environment in a single species.</span></p>
Endogenous rhythm shift and adaptation to the tidal environment in the freshwater snail
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Endogenous glucocorticoid rhythms regulate the circadian sensitivity to noise
GEO Series GSE107086. Mus musculus. 24 samples. Type: Expression profiling by high throughput sequencing.
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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.