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Dataset results
155 results for “task performance”
Data from: Prior associations affect bumblebees’ generalization performance in a tool-selection task
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PsPM-VC1F: SCR, ECG, PPU, respiration and pupil measurements delay from a fear conditioning task with visual CS, performed during MRI scanning
<p>This dataset includes skin conductance response (SCR), electrocardiogram (ECG), peripheral pulse unit (PPU), respiration, pupil size response (PSR) and eyetracker measurements for 21 healthy unmedicated participants (11 females and 10 males, age range: 19 - 34 years, mean age: 25.5 +/- 4.1) participating in a classical (Pavlovian) discriminant delay fear conditioning experiment with visual CS, during MRI scanning. Also included are CS and US information, and ratings of CS after the experiment. Simple and complex CS were tilted Gabor patches, and plaids consisting of two overlaid Gabor patches, respectively. US was a train of electric square pulses delivered with a constant current stimulator (Digitimer DS7A, Digitimer, Welwyn Garden City, UK) on participants' dominant forearm through a pin-cathode/ring-anode configuration. After the fear conditioning task, participants were asked to rate pairs of CS patches with respect to which of the two stimuli they liked less. Then they were asked to report their subjective estimate of how likely they were to receive a shock after this CS in the future, on a visual analogue scale of 0-100.</p>
Data from: Reconfiguration of functional brain networks and metabolic cost converge during task performance
<p>The ability to solve cognitive tasks depends upon adaptive changes in the organization of whole-brain functional networks. However, the link between task-induced network reconfigurations and their underlying energy demands is poorly understood. We address this by multimodal network analyses integrating functional and molecular neuroimaging acquired concurrently during a complex cognitive task. Task engagement elicited a marked increase in the association between glucose consumption and functional brain network reorganization. This convergence between metabolic and neural processes was specific to feedforward connections linking the visual and dorsal attention networks, in accordance with task requirements of visuo-spatial reasoning. Further increases in cognitive load above initial task engagement did not affect the relationship between metabolism and network reorganization but only modulated existing interactions. Our findings show how the upregulation of key computational mechanisms to support cognitive performance unveils the complex, interdependent changes in neural metabolism and neuro-vascular responses.</p>
Data from "Spontaneous alpha power lateralization predicts detection performance in an un-cued signal detection task", PlosOne2016
<p>32-channel(+6) data (Biosemi Active two, 10-20, 2048Hz) unfiltered from the 2016 Plos ONE paper "Spontaneous alpha power lateralization predicts detection performance in an un-cued signal detection task"</p>
Group phenotypic composition drives task performances in ants
<p>Differences in individual behaviour within a group can give rise to functional dissimilarities between groups, particularly in social animals. However, how individual behavioural phenotypes translate into the group phenotype remains unclear. Here we investigate whether individual behavioural type affects group performance in an eusocial species, the ant Aphaenogaster senilis. We measured individual behavioural traits and created groups of workers with similar behavioural type, either high-exploratory or low-exploratory. We tested these groups in four different, ecologically relevant tasks: reaction to an intruder, prey retrieval from a maze, nest relocation and tool use. We show that, compared to groups of low-exploratory workers, groups of high-exploratory workers were more aggressive towards intruders, more efficient in collecting prey, faster in nest relocation and more likely to perform tool use. Our results demonstrate a strong link between individual and collective behaviour in ants. This supports the 'behavioural type hypothesis' for group dynamics, which suggests that an individual's behaviour in a social environment reflects its own behavioural type. The average behavioural phenotype of a group can therefore be predicted from the behavioural types of individual group members.</p>
Cortese et al. 2024. The effect of metabolism on cognitive performance varies with task complexity in common minnows Phoxinus phoxinus
<p>These datasets have been used to produce the figures and results of the manuscript entitled "The effect of metabolism on cognitive performance varies with task complexity in common minnows <em>Phoxinus phoxinus</em>" by Cortese D, Munson A, Storm Z, Jones NAR and Killen SS (2024).</p>
Kinematic data of humans performing the critical stability task
<p>Natural behaviors have redundancy, which implies that humans and animals can achieve their goals with different control objectives. Given only observations of behavior, is it possible to infer the control strategy that the subject is employing? This challenge is particularly acute in animal behavior because we cannot ask or instruct the subject to use a particular control strategy. This study presents a three-pronged approach to infer an animal's control strategy from behavior. First, both humans and monkeys performed a virtual balancing task for which different control objectives could be utilized. Under matched experimental conditions, corresponding behaviors were observed in humans and monkeys. Second, a generative model was developed that represented two main control strategies to achieve the task goal. Model simulations were used to identify aspects of behavior that could distinguish which control objective was being used. Third, these behavioral signatures allowed us to infer the control objective used by human subjects who had been instructed to use one control objective or the other. Based on this validation, we could then infer strategies from animal subjects. Being able to positively identify a subject's control objective from behavior can provide a powerful tool to neurophysiologists as they seek the neural mechanisms of sensorimotor coordination.</p>
Effects of Attentional Focus on Motor Performance and Physiology in a Slow-Motion Violin Bow-Control Task: Evidence for the Constrained Action Hypothesis in Bowed String Technique
<p>The constrained action hypothesis states that focusing attention on action outcomes rather than body movement improves motor performance. Dexterity of motor control is key to successful music performance, making this a highly relevant topic to music education. We investigated effects of focus of attention (FOA) on motor skill performance and EMG muscle activity in a violin bowing task among experienced and novice upper strings players. Following a pedagogically informed exercise, participants attempted to produce single oscillations of the string at a time under three FOA: internal (on arm movement), external (on sound produced), and somatic (on string resistance). Experienced players’ number of bow slips was significantly reduced under somatic focus relative to internal, although number of successful oscillations was not affected. Triceps electromyographic activity was also significantly lower in somatic compared to internal foci for both expertise groups, consistent with physiological understandings of FOA effects. Participants’ reported thoughts during the experiment provided insight into whether aspects of constrained action may be evident in performers’ conscious thinking. These results provide novel support for the constrained action hypothesis in violin bow control, suggesting a somatic FOA as a promising performance-enhancing strategy for bowed string technique.</p>
Companion data of Exploiting system level heterogeneity to improve the performance of a GeoStatistics multi-phase task-based application
<p>This is the companion data repository for the paper entitled <strong>Exploiting system level heterogeneity to improve the performance of a GeoStatistics multi-phase task-based application</strong> by Lucas Leandro Nesi, Lucas Mello Schnorr, and Arnaud Legrand. The manuscript has been accepted for publication in the <a href="https://oaciss.uoregon.edu/icpp21/">ICPP 2021</a>.</p>
Muscle activity, ground reaction forces and pointing performance during postural control tasks in healthy adults
<p>To investigate the muscle coordination during postural control, we recorded muscle activity and postural dynamics in healthy human adults. Fourteen participants performed postural tasks in which postural stability and pointing behaviour was varied. The data set contains electromyography of 36 muscles distributed across the body and ground reaction forces recorded during postural control tasks. A full factorial design was used. Stability was either not challenged or challenged in the anterior-posterior or medial-lateral direction. In addition, participants were asked to either relax their arms or to perform an unimanual or a bimanual pointing task. In the pointing task, participants held a laser pointer and pointed it on a target in front of them. Pointing performance was recorded using a video recording of the laser beam on the target area.</p> <p>InformationData.pdf – Description of data acquisition and file structure<br> EMG.zip – EMG data<br> FP.zip – Force plate data<br> Video.zip – Video feed</p>
Trade-offs Between Performance Efficiency and Costs While Using Function as a Service for Machine Learning Tasks: A Systematic Literature Review
<p>This repository contains all artifacts that were used for the systematic literature review (SLR) related to a the cost and performance trade-offs when Function as a Service (FaaS) for machine learning (ML) tasks.</p> <p>We selected and analyzed 65 papers and publications that were optained via Scopus. The study took place in 2024 from January to August 2024.</p>
Embodiment of virtual feet correlates with motor performance in a target-stepping task
<p>Dataset for the human factors experiment of "Embodiment of virtual feet correlates with motor performance in a target-stepping task".</p>
Data for: Representation of rewards differing in their hedonic valence in the caudate nucleus correlates with the performance in a problem-solving task in dogs (Canis familiaris)
<p>Abstract</p> <p>We have investigated dogs’ (<em>Canis familiaris</em>) abilities in associating different sounds with food rewards of different incentive value. The establishment of the association was tested in a problem-solving behavioural paradigm, as well as in an fMRI study on the same subjects (N=20). The aim was to show behavioural, as well as parallel neural effects of the association formation between the two sounds and two different associated food rewards.<br> The latency of solving the problem was considered as an indicator of motivational state. In our behaviour study we found that dogs were quicker in solving a problem upon hearing the sound associated with food higher in reward value, suggesting that they have successfully associated the sounds with the corresponding food value. In the fMRI study, the cerebral response to the two sounds was compared both before and after the associative training. Two bilateral regions of interest were explored: the caudate nucleus and the amygdala. After the associative training the response in the caudate nucleus was higher to the sound related to a higher reward value food than to the sound related to a lower reward value food, which difference was not present before the associative training. We found an increase in the amygdala response to both sounds after the training. In a whole-brain representational similarity analysis, we found that cerebral patterns in the caudate nucleus to the two sounds were different only after the training. Moreover, we found a positive correlation between the dissimilarity index in the caudate nucleus for activation responses to the two sounds and the difference in latencies to solve the behavioural task: the quicker the dog solved the behavioural task the greater the difference in the neural representation of the two sounds was. In summary, family dogs’ brain activation patterns reflected their expectations based on what they learned about the relationship between two sounds and their associated rewards.</p> <p>This dataset contains</p> <ul> <li>Raw data (four functional runs n = 20)</li> <li>Dog brain template</li> <li>ROI results (Caudate nucleus and amygdala percentage of BOLD signal change and caudate nucleus response to sounds during the two post-training runs adding or not the Inter-scan interval as a covariate in the GLM model n = 20,)</li> <li>RSA results ( Dissimilarity change between sounds (post-training > pre-training) and dissimilarity index per participant n = 20)</li> </ul>
Embodiment of virtual feet correlates with motor performance in a target-stepping task: A pilot study
<p>Dataset for the human factors pilot experiment of "Embodiment of virtual feet correlates with motor performance in a target-stepping task: A pilot study"</p>
Impact of Hyperarousal on Simple and Complex Cognitive Task Performance Among Insomnia Sufferers
ClinicalTrials.gov study NCT02290405. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Does Memantine Improve Verbal Memory Task Performance in Subjects With Partial Epilepsy and Memory Dysfunction?
ClinicalTrials.gov study NCT01054599. IPD Sharing: Not stated. Countries: 1. Publications: 25.
The Effects of Spinal Manipulation on Performance on Neck Pain Patients During a Fitts' Task
ClinicalTrials.gov study NCT04347551. IPD Sharing: YES. Countries: 1. Publications: 30.
The Relationship Between Dual-task Gait Performance, Physical Activity Levels, Sleep and Aging in Healthy Adults
ClinicalTrials.gov study NCT04144647. IPD Sharing: NO. Countries: 1. Publications: 27.
Impact of Sociodemographic, Psychological, and Quality of Life Factors on Dual-Task Performance in Elderly Iraqis
ClinicalTrials.gov study NCT06476561. IPD Sharing: YES. Countries: 1. Publications: 6.
Effect of Adherence to a Gluten-Free Diet on Cognitive and Motor Dual-Task Performance in Adolescents Diagnosed With Celiac Disease
ClinicalTrials.gov study NCT07382999. IPD Sharing: NO. Countries: 1. Publications: 0.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.