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21 results for “movement speed”
Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
<p>The power curve provides a basis for predicting adjustments that animals make in flight speed, for example in relation to wind, distance, habitat foraging quality and objective. However, relatively few studies have examined how animals respond to the landscape below them, which could affect speed and power allocation through modifications in climb rate and perceived predation risk. We equipped homing pigeons (<i>Columba livia</i>) with high-frequency loggers to examine how flight speed, and hence effort, varies in relation to topography and land cover. Pigeons showed mixed evidence for an energy-saving strategy, as they minimized climb rates by starting their ascent ahead of hills, but selected rapid speeds in their ascents. Birds did not modify their speed substantially in relation to land cover, but used higher speeds during descending flight, highlighting the importance of considering the rate of change in altitude before estimating power use from speed. Finally, we document an unexpected variability in speed and altitude over fine scales; a source of substantial energetic inefficiency. We suggest this may be a form of protean behaviour adopted to reduce predation risk when flocking is not an option, and that such a strategy could be widespread.</p>
The speed-curvature power law in tongue movements of repetitive speech [dataset]
<p>Files in this record contain data used to produce results presented in the<br> paper:</p> <p>Title: The speed-curvature power law in tongue movements of repetitive speech<br> Authors: Stephan R. Kuberski and Adamantios I. Gafos<br> DOI: <a href="https://doi.org/10.1371/journal.pone.0213851">https://doi.org/10.1371/journal.pone.0213851</a></p> <p>For further details refer to the included file README.txt.</p>
Figure 5 in Comparison of the movement speed of three ant (Hymenoptera: Formicidae) species along trails
Figure 5. Inter-specific comparison of the movement speeds for ants of the same species on the same substrate type in different months. A) Formica rufa, ground surface; B) Formica rufa, log; C) Formica polyctena, ground surface; and D) Formica polyctena, log.
Figure 1 in Comparison of the movement speed of three ant (Hymenoptera: Formicidae) species along trails
Figure 1. Scheme of the highway construction using logs and bark for the 3 ant species colonies. A) Formica rufa, B) Formica polyctena, and C) Lasius fuliginosus.
Figure 4 in Comparison of the movement speed of three ant (Hymenoptera: Formicidae) species along trails
Figure 4. Interspecific comparison of the movement speeds for ants of the same species on different substrate types. A) Formica rufa, B) Formica polyctena, C) Lasius fuliginosus in August 2022, and D) Lasius fuliginosus in September 2022.
Figure 3 in Comparison of the movement speed of three ant (Hymenoptera: Formicidae) species along trails
Figure 3. Intraspecific comparison of the movement speeds for ants on the same substrate type between all months of the study. A) ground surface, B) logs, and C) bark. Fr: Formica rufa, Fp: Formica polyctena, and Lf: Lasius fuliginosus.
Figure 6 in Comparison of the movement speed of three ant (Hymenoptera: Formicidae) species along trails
Figure 6. Food test results for the interspecific comparison of red wood ants on different substrate types. A)Formica rufa and B) Formica polyctena.
Figure 2. Red wood ant highways. A in Comparison of the movement speed of three ant (Hymenoptera: Formicidae) species along trails
Figure 2. Red wood ant highways. A) Formica rufa workers on a log and B) lined highway from the mound to the forage tree.
Data for: Assessing the Cognition of Movement Trajectory Visualizations: Interpreting Speed and Direction
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Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
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Time perception in human movement: Effects of Speed and Agency on Duration Estimation
<p>This dataset corresponds to the publication of the same title and the following DOI: <a href="https://doi.org/10.1177%2F1747021820979518">https://doi.org/10.1177/1747021820979518</a> </p> <p>The dataset contains 5 excel files whose titles correspond to the variables they contain (background variables, D-prime and C scores, duration estimation during action, duration estimation during perception, expressivity and quality ratings). In all files, descriptions of the variables can be found in the sheet titled "key", and the data can be found in the sheet titled "data".</p>
Execution of saccadic eye movements affects speed perception
<p>This depository contains the data from different experiments regarding the perceived speed of moving targets tracked with different oculomotor behavior.</p> <p>The folders "Gap Paradigm" and "Step Paradigm" contain the main data for the manuscript. The folders "Vertical Offset Control" and "Awareness of Saccades" data from additional control experiments.</p> <p>In the folders "Gap Paradigm" and "Step Paradigm" you will find additional folders seperating the conditions for the collected data. One "Pilot" Folder contains the data used in the pilot experiment to determine the relevant eye crossing times. The "Speed Discrimination" Folder contains the files where participants made judgements about moving objects while tracking it with the eyes. In the "Fixation" folder you find the data for the fixation control where observes saw the same stimulus as during the speed discrimination task, but where not allowed to track the moving object.</p> <p>For each of the experiments we have a folder for the seperate blocks of the participant, which contains a logfile which specifys the parameters used for all trials and seperate files which contain information about the eye position during each trial.</p> <p>The structure of the eye position files is always the same: time, x-position, y-position, events marked by the eyelink. The x- and y-position are coded in pixels on the screen. The parameters specified in the log-fileare explained in an additional readme file.</p>
Speed of Robotic Leg Movements and Orthostatic Hypotension in Subacute SCI
ClinicalTrials.gov study NCT04029974. IPD Sharing: Not stated. Countries: 1. Publications: 17.
Clinical Effects of Electrical Stimulation on Speeding up Orthodontic Tooth Movement
ClinicalTrials.gov study NCT05302076. IPD Sharing: NO. Countries: 1. Publications: 6.
Data from: Head movements quadruple the range of speeds encoded by the insect motion vision system in hawkmoths
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Something in the wind: The influence of wind speed and direction on African lion movement behaviour
<p>Olfaction is a key sense, enabling animals to locate forage, select mates, navigate their environment, and avoid predation. Wind is an important abiotic factor that modulates the strength of olfactory information detected by animals. In theory, when airflow is unidirectional, an animal can maximise the size of their olfactory search area and increase odour detection probability by moving crosswind. Given energetic costs inherent to activity and locomotion, behavioural search strategies that optimize the benefit-cost ratio should be advantageous. We tested whether African lions (Panthera leo) modify their movement directionality and distance according to wind speed and direction during hours of darkness when they are most likely to hunt mobile and elusive prey. We tracked 29 lions in southern Zimbabwe using GPS collars and deployed a weather station to collect detailed abiotic data. We found that when wind speeds increased lions were more likely to move crosswind. We also found that female lions, which tend to hunt more often than males, travelled farther when wind speeds were stronger. The results of our analysis suggest that lions adapt their movement behaviour according to wind speed and direction. We inferred that this was a behavioural decision to maximise the amount of olfactory information gained per unit of energy spent. Our findings not only offer one of the first detailed insights on large carnivore anemotaxis (movement direction relative to wind) but also make an important contribution towards understanding the influence of wind on predator ecology in general which remains understudied to date. Keywords: Panthera Leo, anemotaxis, wind, movement behaviour, olfaction</p>
Visual Processing Speed and Objective Analysis of Ocular Movements in Multiple Sclerosis
ClinicalTrials.gov study NCT05706220. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Sensory Stimulation Effect on Movement Speed in Patients With Parkinson Disease
ClinicalTrials.gov study NCT01544738. IPD Sharing: Not stated. Countries: 1. Publications: 0.
The Effects of Cigarette Addiction on Lower Extremity Movement Speed and Coordination
ClinicalTrials.gov study NCT07075068. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Full Speed Ahead: For Joyful Movement and Health
ClinicalTrials.gov study NCT07374432. IPD Sharing: UNDECIDED. Countries: 1. 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.