Article
Biophysics
Haruki Toda, Yuki Hashimoto, Takuya Ibara, Mitsunori Tada
Summary: This study investigates the effect of vibrotactile stimulation of the hallux nail on segmental coordination to control center of mass (CoM) movement in the mediolateral direction during walking. The results show that vibrotactile stimulation is more effective for young individuals with larger motor noise and smaller synergy index during the single-stance phase.
JOURNAL OF BIOMECHANICS
(2022)
Article
Neurosciences
Courtney M. Butowicz, Adam J. Yoder, Shawn Farrokhi, Brittney Mazzone, Brad D. Hendershot
Summary: In individuals with lower limb loss, hip, knee, and ankle joint motions influence postural sway during standing balance. Specifically, increasing intact-side hip flexion, knee extension, and ankle plantarflexion motion increases postural sway. With vision removed, a re-weighting of lower limb joint sensory mechanisms may control postural sway, indicating a potential increase in fall risk.
Article
Sport Sciences
Kaiqi Liu, Linhong Ji, Dario Capelli, Yijia Lu
Summary: This study assessed the multi-joint coordination of para-alpine sit skiers before and after slackline training. The results showed that after training, the athletes' balance time significantly increased, and the joint angular velocities and RMS amplitudes decreased. Joint synergies were developed through in-or anti-phase movements between joint pairs, and the coordination shifted from large-RMS amplitude of elbows to low-MPF large-RMS amplitude of the hip and shoulders.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2023)
Review
Neurosciences
Evi Verbecque, Charlotte Johnson, Eugene Rameckers, Angelina Thijs, Ingrid van der Veer, Pieter Meyns, Bouwien Smits-Engelsman, Katrijn Klingels
Summary: The study found that children with DCD perform worse in various domains of balance compared to typically developing peers, as evidenced by differences in the balance subscale of the Movement Assessment Battery for Children and force plate studies. They also tend to have direction-specific limited stability limits and task-independent delayed onset of anticipatory postural adjustments.
Article
Neurosciences
Yosuke Tomita, Tomoki Iizuka, Nicolas A. Turpin
Summary: The study investigates the effect of postural instability on the use of kinematic redundancy to stabilize finger and center-of-mass trajectories during reaching from standing in healthy adults. The results show that postural instability reduces the ability to use kinematic redundancy, and the central nervous system may prioritize postural stability over focal movement.
HUMAN MOVEMENT SCIENCE
(2023)
Article
Neurosciences
Mauro Nardon, Francesco Pascucci, Paola Cesari, Matteo Bertucco, Mark L. Latash
Summary: In this study, the researchers investigated the ability of the central nervous system to stabilize vertical posture using neural commands. They found that the control of vertical posture involves setting spatial referent coordinates for muscle groups, which are translated into reciprocal and co-activation commands. The study demonstrated that the two commands co-varied to stabilize the initial postural state, with higher co-variation indexes associated with destabilizing effects of muscle coactivation. The findings suggest the potential applications of studying posture-stabilizing synergies in the space of neural control variables for postural disorders and rehabilitation.
Article
Computer Science, Information Systems
Xiequn Dong, Zesong Fei, Xinyi Wang, Zhong Zheng
Summary: In this paper, the joint transmit power and phase shift design for reconfigurable intelligent surface (RIS) assisted secure uplink communication systems in the scenario of dense buildings are studied. To solve the problem of signal blockage, a friendly user with better channel state information is selected as a jammer to interfere the eavesdropper. The aim is to maximize the secrecy rate under the constant-modulus constraint for RIS phase shift. An alternating optimization based algorithm is proposed to handle the non-convex problem, using the successive convex approximation technique and manifold optimization for transmission power and RIS phase shift optimization respectively. Introducing RIS solves the problem of signal blockage, and simulation results show that the proposed scheme improves the system secrecy rate compared with other benchmark schemes.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Biology
David R. Painter, Jeffrey J. Kim, Angela Renton, Jason B. Mattingley
Summary: The study demonstrates that real-time coordination between co-actors is crucial in joint actions and can enhance accuracy for the lower performing co-actor. Through neural recordings and eye tracking, researchers found that joint control affects cognitive processing across multiple stages and involves increases in both behavioral and neural coupling.
COMMUNICATIONS BIOLOGY
(2021)
Article
Neurosciences
Cagla Fadillioglu, Lisa Kanus, Felix Moehler, Steffen Ringhof, Daniel Hellmann, Thorsten Stein
Summary: This study investigates the effects of controlled stomatognathic motor activity on the control and stability of the center of mass (CoM) during dynamic steady-state balance. The results suggest that deliberate jaw clenching or tongue pressing did not significantly affect the sway, control or stability of the CoM. Further research is needed to understand the effects of stomatognathic motor activities on dynamic steady-state balance with different movement tasks.
FRONTIERS IN HUMAN NEUROSCIENCE
(2022)
Article
Engineering, Industrial
Xingda Qu, Xinyao Hu, Jun Zhao, Zhong Zhao
Summary: The study aimed to investigate the roles of lower-limb joint proprioception in postural control during gait. Results showed that hip proprioception played the most important role in postural control during gait among the components, and the mechanisms for the effects of hip proprioception were different between age groups.
APPLIED ERGONOMICS
(2022)
Article
Multidisciplinary Sciences
Naser Taleshi, James M. W. Brownjohn, Sarah E. Lamb, Stana Zivanovic, Genevieve K. R. Williams
Summary: This study investigates balance strategies during standing on a platform with small anterior-posterior movement and finds that different strategies, including ankle and knee strategies, are employed at different frequencies, along with a transition in the relative motion of the center of pressure and center of mass.
SCIENTIFIC REPORTS
(2022)
Article
Clinical Neurology
Olivia M. Fischer, Kyle J. Missen, Craig D. Tokuno, Mark G. Carpenter, Allan L. Adkin
Summary: This study aimed to investigate the effects of postural threat on sample entropy and traditional balance measures, as well as the role of physiological arousal, perceived anxiety, attention focus, and biological sex. The results showed that participants had increased physiological arousal, anxiety, and attention focus when threatened, and there were changes in sample entropy, anterior-posterior displacement, and balance frequency. Males and females responded similarly to threat, but males had significantly higher attention to balance and high-frequency sway. Increased sample entropy when threatened may reflect a shift to more automatic control, while directing more attention to balance may act to constrain these automatic changes.
FRONTIERS IN NEUROLOGY
(2023)
Article
Engineering, Electrical & Electronic
Qiaoshou Liu, Jianwen Zou, Yingchen Gu
Summary: A distributed joint spectrum resource allocation strategy is proposed in this paper to reduce interference caused by SBSs in ultra-dense networks. Analytical expressions for signal-to-interference ratio are derived using stochastic geometry, and the definitions of area spectrum efficiency and energy efficiency are revised. The proposed strategy balances user performance and improves network efficiency.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Sport Sciences
Devon H. Frayne, Valerie T. Norman-Gerum, Samuel J. Howarth, Stephen H. M. Brown
Summary: This study compared experienced and inexperienced Nordic skiers and found differences in the stabilization of hand and trunk center of mass (COM) velocity, suggesting the potential utility of these performance variables as indicators of motor skill development.
JOURNAL OF SPORTS SCIENCES
(2023)
Article
Neurosciences
Vito Monaco, Federica Aprigliano, Margherita Lofrumento, Dario Martelli, Silvestro Micera, SunilAgrawal
Summary: The study confirmed that CA patients utilize coordination through lower limb segment angle variations to stabilize foot position at heel strikes, and demonstrated that perturbation-based training can enhance foot control accuracy. CA patients effectively utilize pathology-related sensory-motor noise to stabilize foot position during specific task performance.
EXPERIMENTAL BRAIN RESEARCH
(2021)
Article
Neurosciences
Rafaela B. S. C. Garbus, Sandra R. Alouche, Janina M. Prado-Rico, Camila M. Aquino, Sandra M. S. F. Freitas
JOURNAL OF MOTOR BEHAVIOR
(2019)
Article
Neurosciences
Bianca P. Cunha, Sandra M. S. F. Freitas, Georgia F. O. Gomes, Paulo B. de Freitas
JOURNAL OF MOTOR BEHAVIOR
(2019)
Article
Neurosciences
Paulo B. de Freitas, Sandra M. S. F. Freitas, Mechelle M. Lewis, Xuemei Huang, Mark L. Latash
EXPERIMENTAL BRAIN RESEARCH
(2019)
Article
Neurosciences
Sandra M. S. F. Freitas, Paulo B. de Freitas, Mechelle M. Lewis, Xuemei Huang, Mark L. Latash
EXPERIMENTAL BRAIN RESEARCH
(2019)
Article
Neurosciences
Alethea Gomes Nardini, Sandra M. S. F. Freitas, Ali Falaki, Mark L. Latash
EXPERIMENTAL BRAIN RESEARCH
(2019)
Article
Neurosciences
Camila Astolphi Lima, Sandra Regina Alouche, Alessandra Maria Schiavinato Baldan, Paulo Barbosa de Freitas, Sandra Maria Sbeghen Ferreira Freitas
HUMAN MOVEMENT SCIENCE
(2019)
Article
Neurosciences
Paulo B. de Freitas, Sandra M. S. F. Freitas, Sasha Reschechtko, Tyler Corson, Mechelle M. Lewis, Xuemei Huang, Mark L. Latash
EXPERIMENTAL BRAIN RESEARCH
(2020)
Article
Neurosciences
Debora B. Carvalho, Sandra M. S. F. Freitas, Flavia A. D. Alencar, Maria Liliane Silva, Sandra R. Alouche
EXPERIMENTAL BRAIN RESEARCH
(2020)
Letter
Clinical Neurology
Dalton Lustosa de Oliveira, Sandra Maria Sbeghen Ferreira de Freitas, Sandra Regina Alouche, Roberto Gimenez, Cintia Cabral Gonzalez Alonso, Rita Mara Soares Gutierrez, Carlos Eduardo Martins, Raquel Simoni Pires
PARKINSONISM & RELATED DISORDERS
(2020)
Article
Neurosciences
Sandra M. S. F. Freitas, Paulo B. de Freitas, Ali Falaki, Tyler Corson, Mechelle M. Lewis, Xuemei Huang, Mark L. Latash
EXPERIMENTAL BRAIN RESEARCH
(2020)
Review
Clinical Neurology
Cintia C. G. Alonso, Fernanda G. Silva, Leonardo O. P. Costa, Sandra M. S. F. Freitas
Summary: Studies have shown that smell tests are able to distinguish PD patients from individuals with other neurological disorders, such as progressive supranuclear palsy and essential tremor, but not with idiopathic rapid eye movement sleep behavior disorder.
EXPERT REVIEW OF NEUROTHERAPEUTICS
(2021)
Article
Neurosciences
Rafaela B. S. C. Garbus, Janina M. Prado-Rico, Alethea G. Nardini, Sandra M. S. F. Freitas
Summary: Training of arm reaching movements in standing has immediate effects on postural control for stroke survivors, with left stroke individuals showing greater improvements. More sessions may be required for right stroke survivors to achieve balance improvements.
JOURNAL OF STROKE & CEREBROVASCULAR DISEASES
(2021)
Article
Rehabilitation
Cintia C. G. Alonso, Paulo B. de Freitas, Raquel S. Pires, Dalton L. De Oliveira, Sandra M. S. F. Freitas
Summary: This study compared the ability of different hand function tests to differentiate Parkinson's Disease (PD) patients from healthy controls, distinguish stages of the disease, and indicate changes over time. The results showed that the JTHFT(noW) test was highly accurate in discriminating hand function impairments in PD, while the 9HPT and some JTHFT subtests were sensitive to distinguish disease stages and progression.
PHYSIOTHERAPY THEORY AND PRACTICE
(2023)
Article
Rehabilitation
Heloise Borges, Sandra de Freitas, Richard Liebano, Sandra Alouche
Summary: Pain perception impairs aiming movements performed with the ipsilesional upper limb in individuals with unilateral chronic stroke, resulting in slower and less smooth trajectories, increased directional error, and decreased accuracy.
PHYSIOTHERAPY THEORY AND PRACTICE
(2022)
Article
Rehabilitation
Camila Thais Pinto Camara, Sandra Maria Sbeghen Ferreira de Freitas, Camila Astolphi Lima, Cesar Ferreira Amorim, Janina Manzieri Prado-Rico, Monica Rodrigues Perracini
PHYSIOTHERAPY RESEARCH INTERNATIONAL
(2020)
Article
Biochemical Research Methods
Aline Silva da Cruz, Maria Margarida Drehmer, Wagner Baetas-da-Cruz, Joao Carlos Machado
Summary: This study quantified microcirculation cerebral blood flow in a rat model of ischemic stroke using ultrasound biomicroscopy and ultrasound contrast agents. The results showed high sensitivity and specificity of this method, making it a valuable tool for preclinical studies.
JOURNAL OF NEUROSCIENCE METHODS
(2024)
Article
Biochemical Research Methods
Christina Dalla, Ivana Jaric, Pavlina Pavlidi, Georgia E. Hodes, Nikolaos Kokras, Anton Bespalov, Martien J. Kas, Thomas Steckler, Mohamed Kabbaj, Hanno Wuerbel, Jordan Marrocco, Jessica Tollkuhn, Rebecca Shansky, Debra Bangasser, Jill B. Becker, Margaret McCarthy, Chantelle Ferland-Beckham
Summary: Many funding agencies have emphasized the importance of considering sex as a biological variable in experimental design to improve the reproducibility and translational relevance of preclinical research. Omitting the female sex from experimental designs in neuroscience and pharmacology can result in biased or limited understanding of disease mechanisms. This article provides methodological considerations for incorporating sex as a biological variable in in vitro and in vivo experiments, including the influence of age and hormone levels, and proposes strategies to enhance methodological rigor and translational relevance in preclinical research.
JOURNAL OF NEUROSCIENCE METHODS
(2024)
Article
Biochemical Research Methods
Wenyu Gu, Dongxu Li, Jia-Hong Gao
Summary: We developed a precise and rapid method for positioning and labelling triaxial OPMs on a wearable magnetoencephalography (MEG) system, improving the efficiency of OPM positioning and labelling.
JOURNAL OF NEUROSCIENCE METHODS
(2024)
Article
Biochemical Research Methods
Kai Lin, Linhang Zhang, Jing Cai, Jiaqi Sun, Wenjie Cui, Guangda Liu
Summary: The article introduces an EEG feature map processing model for emotion recognition, which achieves significantly improved accuracy by fusing EEG information at different spatial scales and introducing a channel attention mechanism.
JOURNAL OF NEUROSCIENCE METHODS
(2024)
Article
Biochemical Research Methods
John E. Parker, Asier Aristieta, Aryn H. Gittis, Jonathan E. Rubin
Summary: This work presents a toolbox that implements a methodology for automated classification of neural responses based on spike train recordings. The toolbox provides a user-friendly and efficient approach to detect various types of neuronal responses that may not be identified by traditional methods.
JOURNAL OF NEUROSCIENCE METHODS
(2024)
Article
Biochemical Research Methods
Yun Liang, Ke Bo, Sreenivasan Meyyappan, Mingzhou Ding
Summary: This study compared the performance of SVM and CNN on the same datasets and found that CNN achieved consistently higher classification accuracies. The classification accuracies of SVM and CNN were generally not correlated, and the heatmaps derived from them did not overlap significantly.
JOURNAL OF NEUROSCIENCE METHODS
(2024)
Article
Biochemical Research Methods
Antonino Visalli, Maria Montefinese, Giada Viviani, Livio Finos, Antonino Vallesi, Ettore Ambrosini
Summary: This study introduces an analytical strategy that allows the use of mixed-effects models (LMM) in mass univariate analyses of EEG data. The proposed method overcomes the computational costs and shows excellent performance properties, making it increasingly important in the field of neuroscience.
JOURNAL OF NEUROSCIENCE METHODS
(2024)
Article
Biochemical Research Methods
Xavier Cano-Ferrer, Alexandra Tran -Van -Minh, Ede Rancz
Summary: This study developed a novel rotation platform for studying neural processes and spatial navigation. The platform is modular, affordable, and easy to build, and can be driven by the experimenter or animal movement. The research demonstrated the utility of the platform, which combines the benefits of head fixation and intact vestibular activity.
JOURNAL OF NEUROSCIENCE METHODS
(2024)