-
Vision Research Aug 2015
Topics: Attention; Humans; Psychomotor Performance; Vision, Ocular; Visual Perception
PubMed: 26095677
DOI: 10.1016/j.visres.2015.06.003 -
Nature Reviews. Neurology Nov 2012The development of therapeutic strategies that promote functional recovery is a major goal of multiple sclerosis (MS) research. Neuroscientific and methodological... (Review)
Review
The development of therapeutic strategies that promote functional recovery is a major goal of multiple sclerosis (MS) research. Neuroscientific and methodological advances have improved our understanding of the brain's recovery from damage, generating novel hypotheses about potential targets and modes of intervention, and laying the foundation for development of scientifically informed recovery-promoting strategies in interventional studies. This Review aims to encourage the transition from characterization of recovery mechanisms to development of strategies that promote recovery in MS. We discuss current evidence for functional reorganization that underlies recovery and its implications for development of new recovery-oriented strategies in MS. Promotion of functional recovery requires an improved understanding of recovery mechanisms that can be modulated by interventions and the development of robust measurements of therapeutic effects. As imaging methods can be used to measure functional and structural alterations associated with recovery, this Review discusses their use to obtain reliable markers of the effects of interventions.
Topics: Animals; Humans; Immunologic Factors; Magnetic Resonance Imaging; Multiple Sclerosis; Neuronal Plasticity; Psychomotor Performance; Recovery of Function
PubMed: 22986429
DOI: 10.1038/nrneurol.2012.179 -
Ciencia & Saude Coletiva Aug 2018This study aimed to analyze the neuropsychomotor performance of children by implementing the Denver Developmental Screening Test-II (DDST-II). We evaluated a sample of...
This study aimed to analyze the neuropsychomotor performance of children by implementing the Denver Developmental Screening Test-II (DDST-II). We evaluated a sample of 318 children aged 36 to 48 months. Results indicated that girls performed better in three of the four areas analyzed in the test: Personal-Social (p < 0.001), Fine Motor-adaptive (p = 0.020) and Language (p = 0.028). No significant difference was observed between genders in the Gross Motor skills area. Analyzing the performance of children in implementing the tasks expected in the test, we found significant differences in the following items: in the Personal-Social area, the worst-performing item was "Brushes teeth without help"; in the Fine Motor area, the worst-performing item was "shows the longest line"; in the Language area, the worst-performing items were "Knows two adjectives", "Knows four actions" and "Understands four prepositions"; and in the Gross Motor area, the worst-performing item was "Hops on one foot". The results suggest that socially-imposed standards, based on gender differences, may interfere with the neuropsychomotor behavior of children. Furthermore, knowing such development profile is crucial in the formulation of public policies and actions that can contribute to child development.
Topics: Brazil; Child Development; Child, Preschool; Cross-Sectional Studies; Female; Humans; Language Development; Male; Motor Skills; Psychomotor Performance; Public Policy; Sex Factors
PubMed: 30137141
DOI: 10.1590/1413-81232018238.13202016 -
Schizophrenia Bulletin Jul 2021
Topics: Biomedical Research; Humans; Mental Disorders; Neurosciences; Psychomotor Performance
PubMed: 33940630
DOI: 10.1093/schbul/sbab053 -
PloS One 2022Technical elements are related to shooting performance; however, the importance of each factor regarding performance, especially in elite-level pistol shooters, remains...
Technical elements are related to shooting performance; however, the importance of each factor regarding performance, especially in elite-level pistol shooters, remains controversial. The objective of this study was to determine the technical factors that influence pistol performance. One elite-level shooter was analysed during the season before the Olympic classification European championship through a total of six competitions (n = 360 shots). Aiming point trajectories were measured with the SCATT optoelectronic system. Variables were classified into six categories: performance; aiming time; stability of hold; aiming accuracy; cleanness of triggering and shooting delta. Principal component analysis, multiple regressions, Pearson correlations and ANOVAs were used to analyse the data. The results showed that five components (aiming time, stability of hold, aiming accuracy, cleanness of triggering and shooting delta) determined a total of 79.68% of the shooting variance. Specifically, aiming accuracy and cleanness of triggering explained up to 25% of the shooting score, with cleanness of triggering serving as the determining factor. Correlations were found among the performance and stability of hold, aiming accuracy, cleanness of triggering and shooting delta. Last, significant differences were found among 8-score, 9-score and 10-score shots. We conclude that while aiming accuracy seems to be related to the performance, cleanness of triggering could be the most critical technical element; furthermore, while stability of hold does not seem to be a determining factor of the score, it could be a general prerequisite to achieve high levels of performance in elite-level air pistol shooters.
Topics: Adult; Athletic Performance; Firearms; Humans; Male; Postural Balance; Principal Component Analysis; Psychomotor Performance; Task Performance and Analysis
PubMed: 35045106
DOI: 10.1371/journal.pone.0262276 -
Personality and Social Psychology... Feb 2017What effects do factors that impair or enhance performance in individuals have when these individuals act in groups? We provide a framework, called the GIE ("Effects of...
What effects do factors that impair or enhance performance in individuals have when these individuals act in groups? We provide a framework, called the GIE ("Effects of Grouping on Impairments and Enhancements") framework, for investigating this question. As prominent examples for individual-level impairments and enhancements, we discuss sleep deprivation and caffeine. Based on previous research, we derive hypotheses on how they influence performance in groups, specifically process gains and losses in motivation, individual capability, and coordination. We conclude that the effect an impairment or enhancement has on individual-level performance is not necessarily mirrored in group performance: grouping can help or hurt. We provide recommendations on how to estimate empirically the effects individual-level performance impairments and enhancements have in groups. By comparing sleep deprivation to stress and caffeine to pharmacological cognitive enhancement, we illustrate that we cannot readily generalize from group results on one impairment or enhancement to another, even if they have similar effects on individual-level performance.
Topics: Caffeine; Group Processes; Humans; Motivation; Psychomotor Performance; Sleep; Sleep Deprivation
PubMed: 26468077
DOI: 10.1177/1088868315609487 -
Headache Jan 2020To review the published findings relevant to migraine and driving performance, with an intent to encourage discussion on research which may broaden understanding in this... (Review)
Review
OBJECTIVE
To review the published findings relevant to migraine and driving performance, with an intent to encourage discussion on research which may broaden understanding in this area and help educate healthcare providers and their patients.
BACKGROUND
Motor vehicle crashes result in more than 35,000 deaths and more than 2 million injuries annually in the United States. Migraine is one of the most prevalent diseases in the world, and many symptoms associated with migraine attacks have the potential to negatively influence driving ability.
METHODS
We reviewed the published findings related to migraine and driving performance. Study findings relevant to symptoms of migraine and their potential effect on driving were also reviewed. This required a more expansive exploration of the literature beyond migraine, for example, review of the literature relating to the effect of pain, sleepiness, visual disturbances, or vertigo on driving. Finally, the potential effects of treatment for migraine on driving were reviewed.
RESULTS
Literature on the effect of migraine on driving performance is sparse and, in general published studies on the topic have a number of limitations. Based on review of the literature pertaining to other disorders, it seems feasible that some symptoms occurring as part of the migraine attack could impact driving performance, although formal study in this area is lacking. Many of the approved treatments for migraine have the potential to impact driving, yet this has not been specifically studied, and the extent to which these risks are communicated to patients is not clear.
CONCLUSION
The impact of migraine on driving performance has been largely neglected, with few studies specifically designed to address the topic, and relevant studies were generally small with limited control of confounders. This area requires more focus, given a potential for impact on road safety.
Topics: Automobile Driving; Humans; Migraine Disorders; Psychomotor Performance
PubMed: 31792964
DOI: 10.1111/head.13716 -
Experimental Brain Research Apr 2024Psychomotor slowing has consistently been observed in schizophrenia, however research on motor learning in schizophrenia is limited. Additionally, motor learning in...
Psychomotor slowing has consistently been observed in schizophrenia, however research on motor learning in schizophrenia is limited. Additionally, motor learning in schizophrenia has never been compared with the waning of motor learning abilities in the elderly. Therefore, in an extensive study, 30 individuals with schizophrenia, 30 healthy age-matched controls and 30 elderly participants were compared on sensorimotor learning tasks including sequence learning and adaptation (both explicit and implicit), as well as tracking and aiming. This paper presents new findings on an explicit motor sequence learning task, an explicit verbal learning task and a simple aiming task and summarizes all previously published findings of this large investigation. Individuals with schizophrenia and elderly had slower Movement Time (MT)s compared with controls in all tasks, however both groups improved over time. Elderly participants learned slower on tracking and explicit sequence learning while individuals with schizophrenia adapted slower and to a lesser extent to movement perturbations in adaptation tasks and performed less well on cognitive tests including the verbal learning task. Results suggest that motor slowing is present in schizophrenia and the elderly, however both groups show significant but different motor skill learning. Cognitive deficits seem to interfere with motor learning and performance in schizophrenia while task complexity and decreased movement precision interferes with motor learning in the elderly, reflecting different underlying patterns of decline in these conditions. In addition, evidence for motor slowing together with impaired implicit adaptation supports the influence of cerebellum and the cerebello-thalamo-cortical-cerebellar (CTCC) circuits in schizophrenia, important for further understanding the pathophysiology of the disorder.
Topics: Humans; Aged; Psychomotor Performance; Schizophrenia; Learning; Aging; Verbal Learning
PubMed: 38459999
DOI: 10.1007/s00221-024-06797-9 -
Advances in Experimental Medicine and... 2016In order to reliably produce intelligible speech or fluently play a melody on a piano, learning the precise timing of muscle activations is essential. Surprisingly, the... (Review)
Review
In order to reliably produce intelligible speech or fluently play a melody on a piano, learning the precise timing of muscle activations is essential. Surprisingly, the fundamental question of how memories of complex temporal dynamics of movement are stored across the brain is still unresolved. This review outlines the constraints that determine whether and how the timing of skilled movements is represented in the central nervous system and introduces different computational and neural mechanisms that can be harnessed for temporal encoding. It concludes by proposing a schematic model of how these different mechanisms may complement and interact with each other in fast feedback loops to achieve skilled motor timing.
Topics: Brain; Humans; Learning; Movement; Psychomotor Performance
PubMed: 28035559
DOI: 10.1007/978-3-319-47313-0_3 -
Scientific Reports Sep 2022The more distant two consecutive stimuli are presented, the longer the temporal interstimulus interval (ISI) between their presentations is perceived (kappa effect). The...
The more distant two consecutive stimuli are presented, the longer the temporal interstimulus interval (ISI) between their presentations is perceived (kappa effect). The present study aimed at testing whether the kappa effect not only affects perceptual estimates of time, but also motor action, more specifically, interception. In a first step, the original kappa paradigm was adapted to assess the effect in temporal prediction. Second, the task was further modified to an interception task, requiring participants to spatially and temporally predict and act. In two online experiments, a white circle was successively presented at three locations moving from left to right with constant spatial and temporal ISIs in between. Participants were asked to either (i) indicate the time of appearance of the predicted fourth stimulus (Exp. 1) or to (ii) intercept the predicted fourth location at the correct time (Exp. 2). In both experiments the temporal response depended on the spatial intervals. In line with the kappa effect, participants predicted the final stimulus to appear later (Exp. 1) or intercepted it later (Exp. 2), the more distant the stimuli were presented. Together, these results suggest that perceptual biases such as the kappa effect impact motor interception performance.
Topics: Humans; Psychomotor Performance; Spatial Analysis
PubMed: 36138102
DOI: 10.1038/s41598-022-18789-2