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155 results for “task performance”
Group phenotypic composition drives task performances in ants
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Alpha modulation of spiking activity across multiple brain regions in mice performing a tactile selective detection task
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Performance of GPT-4o mini and GPT-4o for medical text mining tasks at different temperature settings
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Kinematic data of humans performing the critical stability task
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Data from: Reconfiguration of functional brain networks and metabolic cost converge during task performance
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Video Editing Materials for Human Perceptions of a Curious Robot that Performs Off-Task Actions
<p>Video footage, editing timelines and compositing resources for the user study described in the HRI 2020 paper "Human Perceptions of a Curious Robot that Performs Off-Task Actions." Adobe Premiere 14 (CC 2019) or greater and a matched release of Adobe After Effects are required to render the clips.</p>
Data set for the manuscript "Reproductive physiology corresponds to adult nutrition and task performance in a Neotropical paper wasp: a test of dominance-nutrition hypothesis predictions"
<p>Data set for the manuscript "Reproductive physiology corresponds to adult nutrition and task performance in a Neotropical paper wasp: a test of dominance-nutrition hypothesis predictions"</p>
Data from: Introduced Drosophila subobscura populations perform better than native populations during an oviposition choice task due to increased fecundity but similar learning ability
The success of invasive species is tightly linked to their fitness in a putatively novel environment. While quantitative components of fitness have been studied extensively in the context of invasive species, fewer studies have looked at qualitative components of fitness, such as behavioral plasticity, and their interaction with quantitative components, despite intuitive benefits over the course of an invasion. In particular, learning is a form of behavioral plasticity that makes it possible to finely tune behavior according to environmental conditions. Learning can be crucial for survival and reproduction of introduced organisms in novel areas, for example, for detecting new predators, or finding mates or oviposition sites. Here we explored how oviposition performance evolved in relation to both fecundity and learning during an invasion, using native and introduced Drosophila subobscura populations performing an ecologically relevant task. Our results indicated that, under comparable conditions, invasive populations performed better during our oviposition task than did native populations. This was because invasive populations had higher fecundity, together with similar cognitive performance when compared to native populations, and that there was no interaction between learning and fecundity. Unexpectedly, our study did not reveal an allocation trade-off (i.e., a negative relationship) between learning and fecundity. On the contrary, the pattern we observed was more consistent with an acquisition trade-off, meaning that fecundity could be limited by availability of resources, unlike cognitive ability. This pattern might be the consequence of escaping natural enemies and/or competitors during the introduction. The apparent lack of evolution of learning may indicate that the introduced population did not face novel cognitive challenges in the new environment (i.e., cognitive "pre-adaptation"). Alternatively, the evolution of learning may have been transient and therefore not detected.
Data from: Functional heterogeneity facilitates effectual collective task performance in a worker-polymorphic ant
<p class="MsoNormal"><span>Effective coordination of group actions underlies the success of group-living organisms. Recent studies of animal personality have shown that groups composed of individuals with different behavioral propensities can outperform uniform groups in a range of different tasks, but we have only a rudimentary understanding of how differences in individual behavior influence the behavior of the group as a whole. In this study, we use natural variation in behavioral propensity among morphologically distinct worker castes of the small carpenter ant <em>Camponotus yamaokai</em> to shed new light on this. Iterative testing indicated that ants displayed consistent behavioral differences among individuals and between castes, with major workers exhibiting a lower exploratory tendency than minors. By constructing groups of different caste composition and quantifying their performance in the task of colony emigration, we show that group performance is an asymmetric humped function of caste ratio, with optimal performance achieved by groups with natural caste ratios. Using a simulation model based on our empirical data, we demonstrate that inter-individual differences in social attraction and exploratory tendency are sufficient to explain the observed patterns. Our results provide new insights into how group performance in collective tasks can vary with group composition. </span></p>
Normative feedback on performance in a closed motor skill task: A randomized controlled study
<p><span>Augmented feedback can alter motor performance. This study examines whether, in the short term, positive normative feedback influences the execution of a closed motor task differently compared to negative normative feedback and exact augmented feedback. Using a double-blind experimental design, 68 students (73.5% female, <span><em>M<sub>age</sub></em><sub> </sub></span><span></span><span>= </span><span>21.63</span>, <span><em>SD</em> = 2.88) </span>were randomized into three groups: G1 - Exact Augmented Feedback Group (</span><span>𝑛</span><span> = 21), G2 - Positive Normative Feedback Group (</span><span>𝑛</span><span> </span><span>= 24), and G3 - Negative Normative Feedback Group (</span><span>𝑛</span><span> </span><span>= 23). The dependent variable was the score obtained in a dart-throwing task. Results showed that participants receiving positive normative feedback achieved higher scores than those receiving negative normative feedback or exact augmented feedback. These differences persisted in retention and transfer tests conducted 24 hours after the practice phase but only between the positive NF group and the exact AF group. Meanwhile, the exact augmented feedback group performed similarly to the negative normative feedback group. These findings have practical implications for training and execution in motor tasks, potentially contributing to enhanced athletic performance.</span></p>
A tactical video-based task does not elicit mental fatigue and does not impair soccer performance in a subsequent small-sided game
<p>Dataset of the publication "A tactical video-based task does not elicit mental fatigue and does not impair soccer performance in a subsequent small-sided game."</p>
Neuronal data sample from PMd of non-human primates (Macaca Mulatta) performing a countermanding reaching task
<p>Brief presentation of the subjects and task performed</p> <p>Two adult male rhesus macaque monkeys (Macaca mulatta; P, C) performed a countermanding reaching task. All experimental procedures, animal care, housing, and surgical procedures conformed with European (Directive 86/609/ECC and 2010/63/UE) and Italian (D.L. 116/92 and D.L. 26/2014) laws on the use of nonhuman primates in scientific research and were approved by the Italian Ministry of Health. In both monkeys a 96 channels Utah arrays (BlackRock Microsystem, USA) was employed to record neuronal activity from the dorsal premotor cortex (PMd) contralateral to the arm employed during the task.</p> <p>Behavioral task</p> <p>Monkeys performed a countermanding reaching task interacting with visual stimuli presented on a touch-screen. Each trial started with the presentation of a central stimulus (red dot) that they had touch with their finger and hold (400-900ms). Thereafter the central stimulus disappeared and, simultaneously, a target appeared (go signal) randomly at one of two opposite positions (left or right). In no-stop trials to perform a correct trial, monkeys had to move their hand form the central target, touch peripheral target and to maintain their fingers on it for a random time (400-800 ms). In stop trials at a variable delay (Stop signal delay, SSD) after the go signal was presented, the central stimulus reappeared (Stop signal) instructing the monkey to keep the hand on the starting position (additional holding time; 400-1000 ms) to perform a correct-stop trial. If the monkey moved the hand during stop trials, the trial was considered a wrong-stop trial. No-stop and stop trials were randomly intermingled in such a way that the no-stop trials were more frequent.</p> <p>Recordings</p> <p>The neuronal activity from each electrode was recorded by employing a Tucker Davies Technologies RZ2 system (sampling rate at 24.4 Khz). Single unit activity was then isolated by using Kilosort (Pachitariu, et al. in Advances in Neural information processing systems (2016) 4448-4456).</p> <p>Data and code reproduce and are linked the main figures and results of the paper "Neuronal population dynamics during motor plan cancellation in non-human primates" , <em>Proceedings of the National Academy of Sciences</em> (<em>PNAS</em>)</p> <p>For further inquiry please contact: stefano.ferraina@uniroma1.it or pierpaolo.pani@uniroma1.it</p> <p> </p>
Data from: How biological attention mechanisms improve task performance in a large-scale visual system model
How does attentional modulation of neural activity enhance performance? Here we use a deep convolutional neural network as a large-scale model of the visual system to address this question. We model the feature similarity gain model of attention, in which attentional modulation is applied according to neural stimulus tuning. Using a variety of visual tasks, we show that neural modulations of the kind and magnitude observed experimentally lead to performance changes of the kind and magnitude observed experimentally. We find that, at earlier layers, attention applied according to tuning does not successfully propagate through the network, and has a weaker impact on performance than attention applied according to values computed for optimally modulating higher areas. This raises the question of whether biological attention might be applied at least in part to optimize function rather than strictly according to tuning. We suggest a simple experiment to distinguish these alternatives.
Algorithm performance comparison in a classification task
<p>Results of algorithm performance comparison experiment.</p>
Dual-Task Performance in Patients With Multiple Sclerosis
ClinicalTrials.gov study NCT03508284. IPD Sharing: NO. Countries: 1. Publications: 16.
The Effect of Big Amplitude Calisthenic Group Exercises on Balance and Dual Task Performance in Older Adults
ClinicalTrials.gov study NCT06713551. IPD Sharing: NO. Countries: 1. Publications: 3.
Relationship Between Pain, Anxiety and Fatigue and Knee Position Sense, Balance and Dual Task Performance During Menstrual Cycle in Females With Multiple Sclerosis
ClinicalTrials.gov study NCT04408742. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Evidence of Neuroplasticity After Performing a Cognitive Task in Idiopathic Parkinson's Disease Patients
ClinicalTrials.gov study NCT02494908. IPD Sharing: Not stated. Countries: 1. Publications: 10.
The Effect Of Dual-Task Training On Motor And Cognitive Performance In School-Age Children
ClinicalTrials.gov study NCT06299280. IPD Sharing: NO. Countries: 1. Publications: 5.
Factors Contributing to Single and Dual Task Performance of Four Square Step Tests
ClinicalTrials.gov study NCT03785639. IPD Sharing: NO. Countries: 1. Publications: 1.
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.