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[PMID]:29278026
[Au] Autor:Tokodi M; Csábi E; Kiricsi Á; Kollár E; Molnár AH; Rovó L; Bella Z
[Ad] Endereço:1 Department of Oto-Rhino-Laryngology and Head-Neck Surgery, University of Szeged , Szeged, Hungary.
[Ti] Título:The effect of nasal provocation with a single-dose allergen on the physical and cognitive performance of patients with ragweed allergy.
[So] Source:Physiol Int;104(4):334-343, 2017 Dec 01.
[Is] ISSN:2498-602X
[Cp] País de publicação:Hungary
[La] Idioma:eng
[Ab] Resumo:Purpose This study aims to compare the impact of active allergic rhinitis on physical and cognitive abilities of trained allergic athletes to untrained allergic patients. Methods Cognitive, respiratory, and fitness functions were assessed before and after allergen exposure. Participants in both groups were provoked intranasally with ragweed allergen. Results The group of athletes revealed significantly higher average values in peak inspiratory flow and fitness index before and after provocation. In neuropsychological assessments, athletes performed significantly better after allergen provocation in complex working memory capacity. Due to single acute allergen exposure, the size of the nasal cavity and nasal inspiratory peak flow significantly decreased in both groups. The physical performance of both groups did not change after provocation. Executive functions and complex working memory capacity of athletes significantly improved resulting from provocation. Conclusions A single-shot allergen in high dose might cause an increase in mental concentration, which was more pronounced in the group of athletes. This study indicates that acute exposure to allergen cannot affect the physical performance and may result in increased mental focus in patients with allergy notwithstanding the declining respiratory functions.
[Mh] Termos MeSH primário: Alérgenos/administração & dosagem
Antígenos de Plantas/administração & dosagem
Desempenho Atlético
Cognição/efeitos dos fármacos
Testes de Provocação Nasal/métodos
Extratos Vegetais/administração & dosagem
Desempenho Psicomotor/efeitos dos fármacos
Rinite Alérgica/fisiopatologia
[Mh] Termos MeSH secundário: Adulto
Relação Dose-Resposta a Droga
Esquema de Medicação
Feminino
Seres Humanos
Masculino
Rinite Alérgica/diagnóstico
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Allergens); 0 (Antigens, Plant); 0 (Plant Extracts); 0 (ragweed pollen)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171227
[St] Status:MEDLINE
[do] DOI:10.1556/2060.104.2017.4.6


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[PMID]:29384609
[Au] Autor:Dumas K; Holtzer R; Mahoney JR
[Ti] Título:Visual-Somatosensory Integration in Older Adults: Links to Sensory Functioning.
[So] Source:Multisens Res;29(4-5):397-420, 2016.
[Is] ISSN:2213-4794
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Research investigating multisensory integration (MSI) processes in aging is scarce, but converging evidence for larger behavioral MSI effects in older compared to younger adults exists. The current study employed a three-prong approach to determine whether inherent age-related sensory processing declines were associated with larger (i.e., worse) visual-somatosensory (VS) reaction time (RT) facilitation effects. Non-demented older adults ( n = 156 ; mean age = 77 years; 55% female) without any medical or psychiatric conditions were included. Participants were instructed to make speeded foot-pedal responses as soon as they detected visual, somatosensory, or VS stimulation. Visual acuity was assessed using the Snellen test while somatosensory sensitivity was determined using vibration thresholds. The aims of the current study were to: (1) replicate a reliable MSI effect; (2) investigate the effect of unisensory functioning on VS RT facilitation; and (3) determine whether sensory functioning combination groups manifested differential MSI effects. Results revealed a significant VS RT facilitation effect that was influenced by somatosensory sensitivity but not visual acuity. That is, older adults with poor somatosensory sensitivity demonstrated significantly larger MSI effects than those with intact somatosensory sensitivity. Additionally, a significant interaction between stimulus condition and sensory functioning group suggested that the group with poor visual acuity and poor somatosensory functioning demonstrated the largest MSI effect compared to the other groups. In summary, the current study reveals that worse somatosensory functioning is associated with larger MSI effects in older adults. To our knowledge, this is first study to identify potential mechanisms behind increased RT facilitation in aging.
[Mh] Termos MeSH primário: Envelhecimento/fisiologia
Desempenho Psicomotor/fisiologia
Córtex Somatossensorial/fisiologia
Percepção Visual/fisiologia
[Mh] Termos MeSH secundário: Idoso
Idoso de 80 Anos ou mais
Feminino
Seres Humanos
Masculino
Psicofísica
Tempo de Reação
Acuidade Visual/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE


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[PMID]:29384608
[Au] Autor:DeLucia PR; Preddy D; Oberfeld D
[Ti] Título:Audiovisual Integration of Time-to-Contact Information for Approaching Objects.
[So] Source:Multisens Res;29(4-5):365-95, 2016.
[Is] ISSN:2213-4794
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Previous studies of time-to-collision (TTC) judgments of approaching objects focused on effectiveness of visual TTC information in the optical expansion pattern (e.g., visual tau, disparity). Fewer studies examined effectiveness of auditory TTC information in the pattern of increasing intensity (auditory tau), or measured integration of auditory and visual TTC information. Here, participants judged TTC of an approaching object presented in the visual or auditory modality, or both concurrently. TTC information provided by the modalities was jittered slightly against each other, so that auditory and visual TTC were not perfectly correlated. A psychophysical reverse correlation approach was used to estimate the influence of auditory and visual cues on TTC estimates. TTC estimates were shorter in the auditory than the visual condition. On average, TTC judgments in the audiovisual condition were not significantly different from judgments in the visual condition. However, multiple regression analyses showed that TTC estimates were based on both auditory and visual information. Although heuristic cues (final sound pressure level, final optical size) and more reliable information (relative rate of change in acoustic intensity, optical expansion) contributed to auditory and visual judgments, the effect of heuristics was greater in the auditory condition. Although auditory and visual information influenced judgments, concurrent presentation of both did not result in lower response variability compared to presentation of either one alone; there was no multimodal advantage. The relative weightings of heuristics and more reliable information differed between auditory and visual TTC judgments, and when both were available, visual information was weighted more heavily.
[Mh] Termos MeSH primário: Percepção Auditiva/fisiologia
Desempenho Psicomotor/fisiologia
Percepção Visual/fisiologia
[Mh] Termos MeSH secundário: Adolescente
Sinais (Psicologia)
Feminino
Seres Humanos
Masculino
Psicofísica
Fatores de Tempo
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE


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[PMID]:29384606
[Au] Autor:Asaoka R; Gyoba J
[Ti] Título:Sounds Modulate the Perceived Duration of Visual Stimuli via Crossmodal Integration.
[So] Source:Multisens Res;29(4-5):319-35, 2016.
[Is] ISSN:2213-4794
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Previous studies have shown that the perceived duration of visual stimuli can be strongly distorted by auditory stimuli presented simultaneously. In this study, we examine whether sounds presented separately from target visual stimuli alter the perceived duration of the target's presentation. The participants' task was to classify the duration of the target visual stimuli as perceived by them into four categories. Our results demonstrate that a sound presented before and after a visual target increases or decreases the perceived visual duration depending on the inter-stimulus interval between the sounds and the visual stimulus. In addition, three tones presented before and after a visual target did not increase or decrease the perceived visual duration. This indicates that auditory perceptual grouping prevents intermodal perceptual grouping, and eliminates crossmodal effects. These findings suggest that the auditory­visual integration, rather than a high arousal state caused by the presentation of the preceding sound, can induce distortions of perceived visual duration, and that inter- and intramodal perceptual grouping plays an important role in crossmodal time perception. These findings are discussed with reference to the Scalar Expectancy Theory.
[Mh] Termos MeSH primário: Percepção Auditiva/fisiologia
Desempenho Psicomotor/fisiologia
Som
Percepção Visual/fisiologia
[Mh] Termos MeSH secundário: Estimulação Acústica
Adulto
Feminino
Seres Humanos
Masculino
Estimulação Luminosa
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE


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[PMID]:29424997
[Au] Autor:Litovchenko OG; Ishbulatova MS
[Ti] Título:[Chrono Physiological characteristics of children of primary school age - the natives of the Middle Ob].
[So] Source:Gig Sanit;95(7):648-51, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:Chronoreflexometric characteristics of the mental performance of children of primary school age - the natives of the Middle Ob were based on the statistical analysis of the latent period of time of a simple visual - motor responses. The results of a survey showed that the functional state of the nervous system of surveyed children ofprimary school age was at "reduced" and "greatly reduced" level of mental performance. This state is characterized by a weakening of attention, a sharp deterioration in time and accuracy parameters of activity and a significant decrease of efficiency on the whole.
[Mh] Termos MeSH primário: Desenvolvimento Infantil/fisiologia
Tempo de Reação/fisiologia
[Mh] Termos MeSH secundário: Criança
Exposição Ambiental/efeitos adversos
Exposição Ambiental/análise
Feminino
Seres Humanos
Masculino
Psicologia da Criança/métodos
Psicologia da Criança/estatística & dados numéricos
Desempenho Psicomotor
Serviços de Saúde Escolar/normas
Serviços de Saúde Escolar/estatística & dados numéricos
Sibéria/epidemiologia
Ensino/psicologia
Ensino/normas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180210
[St] Status:MEDLINE


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[PMID]:29390342
[Au] Autor:Zhang X; Zhou M; Yin H; Dai Y; Li Y
[Ad] Endereço:Department of Neonatology.
[Ti] Título:The predictive value of early oral motor assessments for neurodevelopmental outcomes of moderately and late preterm infants.
[So] Source:Medicine (Baltimore);96(50):e9207, 2017 Dec.
[Is] ISSN:1536-5964
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Oral motor assessment is used to identify abnormal sucking patterns which may reflect neurodevelopmental problems in preterm infants, but few studies have focused on moderately and late preterm infants. We enrolled 118 moderately and late preterm infants (mean gestational age, 35.04 weeks; mean birth weight, 2347.59 g) and analyzed the relationship between the Neonatal Oral-Motor Assessment Scale scores of these infants and the Chinese revision of Bayley Scales of Infant Development outcomes at 6 months corrected age. And the infants with abnormal sucking pattern had significantly lower Mental Development Index and Psychomotor Development Index and showed a higher rate of below average scores than control group (P = .003, P = .029, P = .022). The incoordination of suck-swallow-respiration was a risk factor for adverse neurodevelopment (RR = 3.67, 95% CI: 1.42-9.45). These indicate that abnormal sucking patterns in moderately and late preterm infants might provide some predictive value for short-term neurodevelopmental outcomes, but the clinical predictive value for developmental delay need to be determined in a longer term follow-up. This finding may offer a basis for early intervention.
[Mh] Termos MeSH primário: Deficiências do Desenvolvimento/diagnóstico
Deficiências do Desenvolvimento/fisiopatologia
Recém-Nascido Prematuro/crescimento & desenvolvimento
Desempenho Psicomotor/fisiologia
Comportamento de Sucção/fisiologia
[Mh] Termos MeSH secundário: China
Feminino
Idade Gestacional
Seres Humanos
Lactente
Masculino
Valor Preditivo dos Testes
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:180203
[St] Status:MEDLINE
[do] DOI:10.1097/MD.0000000000009207


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[PMID]:29329355
[Au] Autor:Beaton LE; Azma S; Marinkovic K
[Ad] Endereço:Department of Psychology, San Diego State University, San Diego, California, United States of America.
[Ti] Título:When the brain changes its mind: Oscillatory dynamics of conflict processing and response switching in a flanker task during alcohol challenge.
[So] Source:PLoS One;13(1):e0191200, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Despite the subjective experience of being in full and deliberate control of our actions, our daily routines rely on a continuous and interactive engagement of sensory evaluation and response preparation streams. They unfold automatically and unconsciously and are seamlessly integrated with cognitive control which is mobilized by stimuli that evoke ambiguity or response conflict. Methods with high spatio-temporal sensitivity are needed to provide insight into the interplay between automatic and controlled processing. This study used anatomically-constrained MEG to examine the underlying neural dynamics in a flanker task that manipulated S-R incongruity at the stimulus (SI) and response levels (RI). Though irrelevant, flankers evoked automatic preparation of motor plans which had to be suppressed and reversed following the target presentation on RI trials. Event-related source power estimates in beta (15-25 Hz) frequency band in the sensorimotor cortex tracked motor preparation and response in real time and revealed switching from the incorrectly-primed to the correctly-responding hemisphere. In contrast, theta oscillations (4-7 Hz) were sensitive to the levels of incongruity as the medial and ventrolateral frontal cortices were especially activated by response conflict. These two areas are key to cognitive control and their integrated contributions to response inhibition and switching were revealed by phase-locked co-oscillations. These processes were pharmacologically manipulated with a moderate alcohol beverage or a placebo administered to healthy social drinkers. Alcohol selectively decreased accuracy to response conflict. It strongly attenuated theta oscillations during decision making and partly re-sculpted relative contributions of the frontal network without affecting the motor switching process subserved by beta band. Our results indicate that motor preparation is initiated automatically even when counterproductive but that it is monitored and regulated by the prefrontal cognitive control processes under conflict. They further confirm that the regulative top-down functions are particularly vulnerable to alcohol intoxication.
[Mh] Termos MeSH primário: Consumo de Bebidas Alcoólicas/fisiopatologia
Consumo de Bebidas Alcoólicas/psicologia
Encéfalo/fisiologia
Conflito (Psicologia)
[Mh] Termos MeSH secundário: Adulto
Intoxicação Alcoólica/fisiopatologia
Intoxicação Alcoólica/psicologia
Ritmo beta/efeitos dos fármacos
Ritmo beta/fisiologia
Encéfalo/diagnóstico por imagem
Encéfalo/efeitos dos fármacos
Mapeamento Encefálico
Cognição/efeitos dos fármacos
Cognição/fisiologia
Etanol/efeitos adversos
Feminino
Neuroimagem Funcional
Seres Humanos
Imagem por Ressonância Magnética
Magnetoencefalografia
Masculino
Córtex Pré-Frontal/diagnóstico por imagem
Córtex Pré-Frontal/efeitos dos fármacos
Córtex Pré-Frontal/fisiologia
Desempenho Psicomotor/efeitos dos fármacos
Desempenho Psicomotor/fisiologia
Ritmo Teta/efeitos dos fármacos
Ritmo Teta/fisiologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL
[Nm] Nome de substância:
3K9958V90M (Ethanol)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180113
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191200


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[PMID]:29364891
[Au] Autor:Gorbet DJ; Sergio LE
[Ad] Endereço:School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada.
[Ti] Título:Move faster, think later: Women who play action video games have quicker visually-guided responses with later onset visuomotor-related brain activity.
[So] Source:PLoS One;13(1):e0189110, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A history of action video game (AVG) playing is associated with improvements in several visuospatial and attention-related skills and these improvements may be transferable to unrelated tasks. These facts make video games a potential medium for skill-training and rehabilitation. However, examinations of the neural correlates underlying these observations are almost non-existent in the visuomotor system. Further, the vast majority of studies on the effects of a history of AVG play have been done using almost exclusively male participants. Therefore, to begin to fill these gaps in the literature, we present findings from two experiments. In the first, we use functional MRI to examine brain activity in experienced, female AVG players during visually-guided reaching. In the second, we examine the kinematics of visually-guided reaching in this population. Imaging data demonstrate that relative to women who do not play, AVG players have less motor-related preparatory activity in the cuneus, middle occipital gyrus, and cerebellum. This decrease is correlated with estimates of time spent playing. Further, these correlations are strongest during the performance of a visuomotor mapping that spatially dissociates eye and arm movements. However, further examinations of the full time-course of visuomotor-related activity in the AVG players revealed that the decreased activity during motor preparation likely results from a later onset of activity in AVG players, which occurs closer to beginning motor execution relative to the non-playing group. Further, the data presented here suggest that this later onset of preparatory activity represents greater neural efficiency that is associated with faster visually-guided responses.
[Mh] Termos MeSH primário: Encéfalo/fisiologia
Tempo de Reação
Jogos de Vídeo
Visão Ocular
[Mh] Termos MeSH secundário: Adulto
Encéfalo/diagnóstico por imagem
Feminino
Seres Humanos
Imagem por Ressonância Magnética
Masculino
Desempenho Psicomotor/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180125
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189110


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[PMID]:29309417
[Au] Autor:Seegelke C; Weigelt M
[Ad] Endereço:Biopsychology and Cognitive Neuroscience, Faculty of Psychology and Sports Science, Bielefeld University, Bielefeld, Germany.
[Ti] Título:Anticipating different grips reduces bimanual end-state comfort: A tradeoff between goal-related and means-related planning processes.
[So] Source:PLoS One;13(1):e0190586, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The present study explored the sensitivity towards bimanual end-state comfort in a task that required anticipating different final grips. Participants simultaneously reached and grasped two objects with either a whole-hand grip (WHG) or a precision grip (PG), and placed them at two target locations by transporting them either over or under an obstacle. The transport path was varied such that it could be either congruent (i.e., both objects over or under) or incongruent (i.e., one object over and the other object under). In the congruent conditions, participants satisfied bimanual end-state comfort (and identical initial grips) on the majority of trials. That is, participants adopted a PG for either hand when the objects were transported over the obstacle and a WHG for either hand when the objects were transported under the obstacle. In contrast, in the incongruent conditions, bimanual end-state comfort was significantly reduced, indicating the presence of intermanual inference. The results indicate that goal-related planning constraints (i.e., bimanual end-state comfort) do not strictly take precedence over means-related constraints (i.e., identical initial grips) if this requires anticipating different final grips. Thus, bimanual end-state comfort per se does not provide a predominant constraint in action selection, by which sensorimotor interference can be reduced. In line with the proposal that bimanual grip planning relies on a flexible constraint hierarchy, a simple formal model that considers bimanual grip posture planning as a tradeoff between goal-related and means-related planning processes can explain our results reasonably well.
[Mh] Termos MeSH primário: Força da Mão
[Mh] Termos MeSH secundário: Adulto
Seres Humanos
Masculino
Desempenho Psicomotor
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180109
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190586


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[PMID]:27771348
[Au] Autor:Rueda-Delgado LM; Solesio-Jofre E; Mantini D; Dupont P; Daffertshofer A; Swinnen SP
[Ad] Endereço:KU Leuven, Movement Control and Neuroplasticity Research Group, Group Biomedical Sciences, Tervuurse Vest 101, 3001 Leuven, Belgium. Electronic address: Laura.RuedaDelgado@kuleuven.be.
[Ti] Título:Coordinative task difficulty and behavioural errors are associated with increased long-range beta band synchronization.
[So] Source:Neuroimage;146:883-893, 2017 Feb 01.
[Is] ISSN:1095-9572
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The neural network and the task-dependence of (local) activity changes involved in bimanual coordination are well documented. However, much less is known about the functional connectivity within this neural network and its modulation according to manipulations of task complexity. Here, we assessed neural activity via high-density electroencephalography, focussing on changes of activity in the beta frequency band (~15-30Hz) across the motor network in 26 young adult participants (19-29 years old). We investigated how network connectivity was modulated with task difficulty and errors of performance during a bimanual visuomotor movement consisting of dial rotation according to three different ratios of speed: an isofrequency movement (1:1), a non-isofrequency movement with the right hand keeping the fast pace (1:3), and the converse ratio with the left hand keeping the fast pace (3:1). To quantify functional coupling, we determined neural synchronization which might be key for the timing of the activity within brain regions during task execution. Individual source activity with realistic head models was reconstructed at seven regions of interest including frontal and parietal areas, among which we estimated phase-based connectivity. Partial least squares analysis revealed a significant modulation of connectivity with task difficulty, and significant correlations between connectivity and errors in performance, in particular between sensorimotor cortices. Our findings suggest that modulation of long-range synchronization is instrumental for coping with increasing task demands in bimanual coordination.
[Mh] Termos MeSH primário: Ritmo beta
Sincronização Cortical
Córtex Motor/fisiologia
Desempenho Psicomotor
Córtex Sensório-Motor/fisiologia
[Mh] Termos MeSH secundário: Adulto
Mapeamento Encefálico
Eletroencefalografia
Feminino
Seres Humanos
Masculino
Vias Neurais/fisiologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE



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