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57 results for “locomotor activity”
Data from: Locomotor activity and body temperature patterns over a temperature gradient in the highveld mole-rat (Cryptomys hottentotus pretoriae)
African mole-rats are strictly subterranean mammals that live in extensive burrow systems. High humidity levels in the burrows prevent mole-rats from thermoregulating using evaporative cooling. However, the relatively stable environment of the burrows promotes moderate temperatures and small daily temperature fluctuations. Mole-rats therefore display a relatively wide range of thermoregulation abilities. Some species cannot maintain their body temperatures at a constant level, whereas others employ behavioural thermoregulation. Here we test the effect of ambient temperature on locomotor activity and body temperature, and the relationship between the two parameters, in the highveld mole-rat. We exposed mole-rats to a 12L:12D and a DD light cycle at ambient temperatures of 30°C, 25°C and 20°C while locomotor activity and body temperature were measured simultaneously. In addition, we investigated the endogenous rhythms of locomotor activity and body temperature at different ambient temperatures. Mole-rats displayed nocturnal activity at all three ambient temperatures and were most active at 20°C, but least active at 30°C. Body temperature was highest at 30°C and lowest at 20°C, and the daily cycle was highly correlated with locomotor activity. We show that the mole-rats have endogenous rhythms for both locomotor activity and body temperature. However, the endogenous body temperature rhythm appears to be less robust compared to the locomotor activity rhythm. Female mole-rats appear to be more sensitive to temperature changes than males, increased heterothermy is evident at lower ambient temperatures, whilst males show smaller variation in their body temperatures with changing ambient temperatures. Mole-rats may rely more heavily on behavioural thermoregulation as it is more energy efficient in an already challenging environment.
Dataset - Monitoring and Analyzing of Circadian and Ultradian Locomotor Activity Based on Raspberry-Pi
<p>Dataset of the raw data used for the figures in the article "Monitoring and Analyzing of Circadian and Ultradian Locomotor Activity Based on Raspberry-Pi", published by Electronics, Special Issue on Raspberry-Pi.</p> <p>Description:</p> <p>-fig 6-7, raw data of one Gammarus setosus used for actogram and spectral analysis;</p> <p>-fig 10-board temp-current, raw data of the board temperature recorded by PT100 and current in mA;</p> <p>-fig10-12-13 chamber-cpu temp, raw data of the chamber temperature and cpu temperature.</p>
Data from: Responses to artificial selection for locomotor activity: A focus on death feigning in red flour beetle
<p>Whole-organism performance, including locomotor activity, is an important fitness trait in many animals. Locomotor activity is often classified into sprint speed and locomotor endurance and differences in sprint speed and locomotor endurance affect on other traits such as life-history traits. Previous studies found that locomotor endurance, sprint speed, and brain dopamine (DA) levels are correlated with artificial selection for death-feigning (an anti-predator behavior that we refer to as "death-feigning syndrome") in some insect species. Thus, if the syndrome has a genetic basis, death feigning, sprint speed, and brain DA levels may be affected by artificial selection for locomotor endurance. We artificially selected for locomotor endurance over 10 generations in the red flour beetle <em>Tribolium castaneum</em>, and established higher (H) and lower activity (L) strains, then compared their death-feigning behavior, sprint speed, and brain DA levels. H-strain beetles exhibited significantly shorter duration of death-feigning, and significantly higher sprint speed, suggesting variation in death-feigning syndrome. Surprisingly, although brain DA expression affects various animal behaviors, we found no significant differences in the brain DA expressions of H- and L-strain beetles. Thus, our results imply genetic correlations between locomotor endurance, sprint speed, and death feigning, but not with brain DA expression, suggesting that differences in the biogenic amine results of our previous studies may reflect differences in behavioral expression mechanisms.</p>
Sex-specific genetic (co)variances of standard metabolic rate, body mass and locomotor activity in Drosophila melanogaster
<p>A longstanding focus in evolutionary physiology concerns the causes and consequences of variation in maintenance metabolism. Insight into this can be gained by estimating the sex-specific genetic architecture of maintenance metabolism alongside other, potentially correlated traits on which selection may also act, such as body mass and locomotor activity. This may reveal potential genetic constraints affecting the evolution of maintenance metabolism. Here, we used a half-sibling breeding design to quantify the sex-specific patterns of genetic (co)variance in standard metabolic rate (SMR), body mass, and daily locomotor activity in <i>Drosophila melanogaster</i>. There was detectable additive genetic variance for all traits in both sexes. As expected, SMR and body mass were strongly and positively correlated, with genetic allometry exponents (<i>b</i><sub>A</sub>±se) of 0.66±0.16 in females and 0.58±0.32 in males. There was a significant and positive genetic correlation between SMR and locomotor activity in males, suggesting that alleles that increase locomotion have pleiotropic effects on SMR. Sexual differences in the genetic architecture were driven in large part by a difference in genetic variance in locomotor activity between the sexes. Overall, genetic variation was mostly shared between males and females, setting the stage for a potential intralocus sexual conflict in the face of sexually antagonistic selection.</p>
Data and code for Mitonuclear interactions affect locomotor activity and sleep in Drosophila melanogaster
<p>Data and R code for Mitonuclear interactions affect locomotor activity and sleep in Drosophila melanogaster</p>
Locomotor activity pattern of the olive fruit fly
<p>LAM_data_repository: Locomotor activity data of olive fruit flies (<em>Bactrocera oleae</em>) <em> </em>recorded with the LAM25H device. Both sexes, virgin and mated, and wild and artificially reared flies were monitored.</p> <p>data_repository: Raw LAM data were analyzed in MATLAB with SCAMP and sleep (inactivity) parameters of olive fruit flies were calculated. Number of sleep episodes and their mean duration during the light and the dark period are given.</p>
Tradeoff between pre and postcopulatory traits depends on locomotor activity in male Tribolium castaneum beetles
<p><span>Locomotor performance is an indicator of dynamic exercise; thus, it is a central trait in many animal behaviors. Although higher locomotor endurance may increase male reproductive success (e.g., in mate searching and male–male contests), investment in other male reproductive traits (e.g., male attractiveness and sperm competition) may be decreased through energy consumption due to higher activity levels. Here, I investigated male attractiveness, mating success, and paternity success using males of the red flour beetle Tribolium castaneum selected for higher (H) and lower (L) locomotor endurance. Although there was no difference in male attractiveness between the selection regimes, H males had significantly higher mating success than L males. Conversely, L males had significantly higher paternity success than H males. Therefore, there was a tradeoff between mating success and paternity success among the selection regimes, suggesting that locomotor endurance affects male reproduction in T. castaneum, and individual variation of locomotor endurance may be maintained within a population.</span></p>
Adaptation of Locomotor Activity in Patients Suffering From Hip OA - Analysis of This Adaptation as a Prognostic Criterion for Future Disease Progression
ClinicalTrials.gov study NCT01907503. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Locomotor Muscle Oxygenation and Activation During Acute Interval Compared to Constant-load Bed-cycling Exercise
ClinicalTrials.gov study NCT05279547. IPD Sharing: Not stated. Countries: 1. Publications: 7.
Evaluation of Locomotor Activity Before and After Total Hip Replacement in Patients With Hip Osteoarthritis.
ClinicalTrials.gov study NCT02042586. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Tradeoff between pre and postcopulatory traits depends on locomotor activity in male Tribolium castaneum beetles
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Data from: Locomotor activity and body temperature patterns over a temperature gradient in the highveld mole-rat (Cryptomys hottentotus pretoriae)
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Drosophila carboxypeptidase D (SILVER) is a key enzyme in neuropeptide processing required to maintain locomotor activity levels and survival rate
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Sex-specific genetic (co)variances of standard metabolic rate, body mass and locomotor activity in Drosophila melanogaster
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Data from: Responses to artificial selection for locomotor activity: A focus on death feigning in red flour beetle
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Evening locomotor activity during stopover differs on pre-departure and departure days in free-living songbirds
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Data from: Speed dependency in α-motoneuron activity and locomotor modules in human locomotion: indirect evidence for phylogenetically conserved spinal circuits
Coordinated locomotor muscle activity is generated by the spinal central pattern generators (CPGs). Vertebrate studies have demonstrated the following two characteristics of the speed control mechanisms of the spinal CPGs: (i) rostral segment activation is indispensable for achieving high-speed locomotion; and (ii) specific combinations between spinal interneuronal modules and motoneuron (MN) pools are sequentially activated with increasing speed. Here, to investigate whether similar control mechanisms exist in humans, we examined spinal neural activity during varied-speed locomotion by mapping the distribution of MN activity in the spinal cord and extracting locomotor modules, which generate basic MN activation patterns. The MN activation patterns and the locomotor modules were analysed from multi-muscle electromyographic recordings. The reconstructed MN activity patterns were divided into the following three patterns depending on the speed of locomotion: slow walking, fast walking and running. During these three activation patterns, the proportion of the activity in rostral segments to that in caudal segments increased as locomotion speed increased. Additionally, the different MN activation patterns were generated by distinct combinations of locomotor modules. These results are consistent with the speed control mechanisms observed in vertebrates, suggesting phylogenetically conserved spinal mechanisms of neural control of locomotion.
Data from: Hoverfly locomotor activity is resilient to external influence and intrinsic factors
Hoverflies are found across the globe, with approximately 6000 species described worldwide. Many hoverflies are being used in agriculture and some are emerging as model species for laboratory experiments. As such it is valuable to know more about their activity. Like many other dipteran flies, Eristalis hoverflies have been suggested to be strongly diurnal, but this is based on qualitative visualization by human observers. To quantify how hoverfly activity depends on internal and external factors, we here utilize a locomotor activity monitoring system. We show that Eristalis hoverflies are active during the entire light period when exposed to a 12 h light:12 h dark cycle, with a lower activity if exposed to light during the night. We show that the hoverflies' locomotor activity is stable over their lifetime and that it does not depend on the diet provided. Surprisingly, we find no difference in activity between males and females, but the activity is significantly affected by the sex of an accompanying conspecific. Finally, we show that female hoverflies are more resilient to starvation than males. In summary, Eristalis hoverflies are resilient to a range of internal and external factors, supporting their use in long-term laboratory experiments.
locomotor activity
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Anxiety, Locomotor activity, Morris
<p>Dataset</p>
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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)
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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.