Abstract：
:This study investigates human performance in a cyclic Fitts task at three different scales of observation, either in the presence (difficult condition) or in the absence (easy condition) of a speed-accuracy trade-off. At the fastest scale, the harmonicity of the back and forth movements, which reflects the dissipation of mechanical energy, was measured within the timeframe of single trials. At an intermediate scale, speed and accuracy measures were determined over a trial. The slowest scale pertains to the temporal structure of movement variability, which evolves over multiple trials. In the difficult condition, reliable correlations across each of the measures corroborated a coupling of nested scales of performance. Participants who predominantly emphasized the speed-side of the trade-off (despite the instruction to be both fast and accurate) produced more harmonic movements and clearer 1/f scaling in the produced movement time series, but were less accurate and produced more random variability in the produced movement amplitudes (vice versa for more accurate participants). This implied that speed-accuracy trade-off was accompanied by a trade-off between temporal and spatial streams of 1/f scaling, as confirmed by entropy measures. In the easy condition, however, no trade-offs nor couplings among scales of performance were observed. Together, these results suggest that 1/f scaling is more than just a byproduct of cognition. These findings rather support the claim that interaction-dominant dynamics constitute a coordinative basis for goal-directed behavior.
journal_name
Front Physioljournal_title
Frontiers in physiologyauthors
Wijnants ML,Cox RF,Hasselman F,Bosman AM,Van Orden Gdoi
10.3389/fphys.2012.00116subject
Has Abstractpub_date
2012-05-23 00:00:00pages
116issn
1664-042Xjournal_volume
3pub_type
杂志文章abstract：Purpose:To examine physiological and technical responses to repeated-sprint training in normobaric hypoxia at ∼3,000 m (RSH, n = 11) or in normoxia (RSN, n = 11) compared to a control group (CON, n = 8) in well-trained tennis players. Participants were 28.8 ± 5.9 years old without any previous experience of training in...
journal_title：Frontiers in physiology
pub_type： 杂志文章
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更新日期：2020-12-18 00:00:00
abstract：:An increase in calorie consumption is associated with the recent rise in obesity prevalence. However, our current understanding of the effects of nutrient excess on major metabolic pathways appears insufficient to develop safe and effective metabolic interventions to prevent obesity. Hence, we sought to identify syste...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2014.00453
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abstract：:Although motor output of the postural function clearly influences postural performance in young and older subjects, no relationship has been formally established between them. However, the relationship between lower-extremity muscle strength/power and postural performance is often pointed out, especially in older subj...
journal_title：Frontiers in physiology
pub_type： 杂志文章,评审
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更新日期：2017-08-15 00:00:00
abstract：:RASA3 is a Ras GTPase activating protein that plays a critical role in blood formation. The autosomal recessive mouse model scat (severe combined anemia and thrombocytopenia) carries a missense mutation in Rasa3. Homozygotes present with a phenotype characteristic of bone marrow failure that is accompanied by alternat...
journal_title：Frontiers in physiology
pub_type： 杂志文章
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abstract：:There are animal species that have adapted to life at high altitude and hypobaric hypoxia conditions in the Andean highlands. One such species is the llama (Lama glama), which seem to have developed efficient protective mechanisms to avoid maladaptation resulting from chronic hypoxia, such as a resistance to the devel...
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pub_type： 杂志文章
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abstract：:Realistic electrocardiogram (ECG) simulation with numerical models is important for research linking cellular and molecular physiology to clinically observable signals, and crucial for patient tailoring of numerical heart models. However, ECG simulation with a realistic torso model is computationally much harder than ...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2018.00370
更新日期：2018-04-20 00:00:00
abstract：BACKGROUND:The potential for cross acclimation between environmental stressors is not well understood. Thus, the aim of this investigation was to determine the effect of fixed-workload heat or hypoxic acclimation on cellular, physiological, and performance responses during post acclimation hypoxic exercise in humans. ...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2016.00078
更新日期：2016-03-08 00:00:00
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journal_title：Frontiers in physiology
pub_type： 杂志文章,评审
doi：10.3389/fphys.2014.00226
更新日期：2014-06-25 00:00:00
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pub_type： 杂志文章
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journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2013.00235
更新日期：2013-09-03 00:00:00
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journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2018.01917
更新日期：2019-01-18 00:00:00
abstract：:The rice-fish mode, a mode of ecological aquaculture, has become a popular research topic in recent years. The antioxidant capacity of fish can be affected by the type of diet. Three groups of adult common carp (initial weight 517.8 ± 50 g) were fed earthworm (group A), earthworm + duckweed (group M), and duckweed (gr...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2019.00631
更新日期：2019-05-29 00:00:00
abstract：:Introduction: Endothelial progenitor cells (EPCs) display a unique ability to promote angiogenesis and restore endothelial function in injured blood vessels. NADPH oxidase 4 (NOX4)-derived hydrogen peroxide (H2O2) serves as a signaling molecule and promotes endothelial cell proliferation and migration as well as prote...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2017.00150
更新日期：2017-03-23 00:00:00
abstract：:Gene-targeted deletion of the potassium channel Kv1.3 (Kv1.3(-∕-)) results in "Super-smeller" mice with a sensory phenotype that includes an increased olfactory ability linked to changes in olfactory circuitry, increased abundance of olfactory cilia, and increased expression of odorant receptors and the G-protein, Gol...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2016.00178
更新日期：2016-05-19 00:00:00
abstract：:Advances in high-performance computing are enabling a new generation of software tools that employ computational modeling for surgical planning. Surgical management of laryngeal paralysis is one area where such computational tools could have a significant impact. The current paper describes a comprehensive effort to d...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2011.00019
更新日期：2011-05-02 00:00:00
abstract：:Background and Objective: It is widely accepted that there is an association between chronic obstructive pulmonary disease (COPD) and periodontitis. However, whether the periodontal status of the COPD patients is worse than that of the non-COPD subjects is seldom assessed. The findings currently available are inconsis...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2018.00033
更新日期：2018-01-25 00:00:00
abstract：:Exercise and physical labor in extreme environmental conditions causes transient decreases in immune cell and cytokine concentrations, likely increasing the susceptibility to opportunistic infection. Baker's yeast beta glucan (BYBG) has been previously demonstrated to be an effective countermeasure in athletes, but it...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2017.00786
更新日期：2017-10-20 00:00:00
abstract：:Calcium is an important second messenger required not only for the excitation-contraction coupling of the heart but also critical for the activation of cell signaling pathways involved in the adverse cardiac remodeling and consequently for the heart failure. Sustained neurohumoral activation, pressure-overload, or myo...
journal_title：Frontiers in physiology
pub_type： 杂志文章,评审
doi：10.3389/fphys.2019.00159
更新日期：2019-03-01 00:00:00
abstract：:Optogenetic methods enable selective de- and hyperpolarization of cardiomyocytes expressing light-sensitive proteins within the myocardium. By using light, this technology provides very high spatial and temporal precision, which is in clear contrast to electrical stimulation. In addition, cardiomyocyte-specific expres...
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pub_type： 杂志文章,评审
doi：10.3389/fphys.2019.00675
更新日期：2019-06-06 00:00:00
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journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2013.00034
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journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2020.00222
更新日期：2020-03-31 00:00:00
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journal_title：Frontiers in physiology
pub_type： 杂志文章,评审
doi：10.3389/fphys.2014.00127
更新日期：2014-04-09 00:00:00
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journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2019.00688
更新日期：2019-06-04 00:00:00
abstract：Background:Perturbation of endothelial function in people with cystic fibrosis (CF) has been reported, which may be associated with endothelial cell expression of the cystic fibrosis transmembrane conductance regulator (CFTR). Previous reports indicate that CFTR activity upregulates endothelial barrier function, endoth...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2020.00879
更新日期：2020-07-29 00:00:00
abstract：:The aim of this perspective article is to share with the community of ion channel scientists our thoughts and expectations regarding the increasing role that computational tools will play in the future of our field. The opinions and comments detailed here are the result of a 3-day long international exploratory worksh...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2013.00390
更新日期：2013-12-26 00:00:00
abstract：:Corpus luteum (CL) is a transient endocrine tissue that produces progesterone for maintaining pregnancy in mammals. In addition, the regression of CL is necessary for the initiation of the estrous cycle. Extensive research has shown that the prostaglandin F2α (PGF2α) induces the regression of CL in ruminants. However,...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2020.00868
更新日期：2020-09-11 00:00:00
abstract：:Background: Whole-body electromyostimulation (WB-EMS) gained increasing interest in sports within recent years. However, few intervention studies have examined the effects of WB-EMS on trained subjects in comparison to conventional strength training. Objective: The aim of the present mini-meta-analysis of 5 recently c...
journal_title：Frontiers in physiology
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doi：10.3389/fphys.2019.01336
更新日期：2019-11-08 00:00:00
abstract：:Background and Purpose: Store-operated calcium entry (SOCE) is an important physiological phenomenon that extensively mediates intracellular calcium ion (Ca2+) load. It has been previously found in myocytes isolated from neonatal or diseased hearts. We aimed to determine its existence, molecular nature in undiseased h...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2018.01785
更新日期：2018-12-13 00:00:00
abstract：:The pea aphid, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae), shows wing polyphenism (winged and wingless morphs) in its life cycle. The winged morph is adapted for dispersal; its two developmental adult stages (for dispersal and reproduction) are based on its breeding periods. The two morphs show different phot...
journal_title：Frontiers in physiology
pub_type： 杂志文章
doi：10.3389/fphys.2016.00307
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