Article
Engineering, Biomedical
Huiying Zhu, Yizhao Wang, Naveen Elangovan, Leonardo Cappello, Giulio Sandini, Lorenzo Masia, Juergen Konczak
Summary: This study demonstrates that a single sensory-motor training can rapidly improve proprioceptive acuity and untrained sensorimotor performance at the trained joint. Importantly, these improvements transfer almost fully to the neighboring limb joint system.
JOURNAL OF NEUROENGINEERING AND REHABILITATION
(2023)
Article
Neurosciences
Jasmine L. Mirdamadi, Courtney R. Seigel, Stephen D. Husch, Hannah J. Block
Summary: When there is a mismatch between visual and proprioceptive estimates of hand position, the brain realigns them to reduce the discrepancy. This realignment affects not only the representation of the finger itself, but also extends to other parts of the limb.
Article
Multidisciplinary Sciences
Yizhao Wang, Huiying Zhu, Naveen Elangovan, Leonardo Cappello, Giulio Sandini, Lorenzo Masia, Juergen Konczak
Summary: This study demonstrates that proprioceptive-focused visuomotor training can induce proprioceptive and motor gains not only in the trained joint but also transfer to the contralateral, homologous joint. Additionally, the untrained joint showed persistent effects post-training.
SCIENTIFIC REPORTS
(2021)
Article
Biology
Margaret M. Henderson, Rosanne L. Rademaker, John T. Serences, Chris Baker
Summary: Working memory can flexibly store information based on behavioral goals. A study found that in a visual working memory task, there was less information about remembered spatial position in early visual and parietal regions when the required response was known, while a representation of the planned motor action emerged in primary somatosensory, primary motor, and premotor cortex.
Article
Multidisciplinary Sciences
Yokhesh K. Tamilselvam, Mandar Jog, Rajni V. Patel
Summary: Sensorimotor control (SMC) is a complex function that involves sensory, cognitive, and motor systems working together to plan, update, and execute voluntary movements. Recent studies have shown that PD patients have deficits in sensory, motor, and cognitive systems, which could lead to SMC deficits. The objective of the study was to investigate SMC deficits in PD and their impact on upper-limb motions.
SCIENTIFIC REPORTS
(2023)
Review
Hospitality, Leisure, Sport & Tourism
Aron Horvath, Eszter Ferentzi, Kristof Schwartz, Nina Jacobs, Pieter Meyns, Ferenc Koteles
Summary: This systematic review identified and categorized different methods used to assess proprioceptive accuracy. The results showed that there are 8 different aspects of proprioception and various paradigms of psychophysics are applied. The findings suggest that there is no association between the outcomes of different tasks, highlighting the need to choose the appropriate measurement method based on theoretical considerations and ecological validity.
JOURNAL OF SPORT AND HEALTH SCIENCE
(2023)
Article
Psychology, Mathematical
Matilde Rocca, Lucia Maria Sacheli, Luca Romeo, Andrea Cavallo
Summary: Extensive evidence suggests that observing actions can influence our own motor behavior, a phenomenon known as visuo-motor interference. However, it is unclear how different types of interaction affect this effect. In this study, the researchers examined reach-to-grasp movements performed in interactive and noninteractive settings and found that the interference effect was reduced when the partner's action was relevant to achieving a common goal, regardless of whether it had a concrete sensory outcome or not. These findings support the idea that during joint actions, we form dyadic motor plans that involve predictive representations of both our own and our partner's actions.
PSYCHONOMIC BULLETIN & REVIEW
(2023)
Review
Medicine, General & Internal
Mirjam Bonanno, Rocco Salvatore Calabro
Summary: Robot-aided motion analysis (R-AMA) has the potential to provide more accurate registration and monitoring of patients' motion parameters compared to clinical scales. It can also be used to build machine learning algorithms for better motor outcomes. However, the clinical acceptance of robotic assessment tools is limited due to their reliability and validity compared to standardized scales.
Article
Computer Science, Artificial Intelligence
Silvia Marchesotti, Fosco Bernasconi, Giulio Rognini, Marzia De Lucia, Hannes Bleuler, Olaf Blanke
Summary: This study investigates the neurophysiological correlates of visuo-motor processing and sense of agency during human-machine interactions. The researchers used a bimanual robotic interface to track voluntary hand movements and manipulated the visual feedback in virtual reality. They found that the right posterior parietal cortex encodes differences between congruent and spatially-incongruent interactions and that the experimental manipulations decreased the sense of agency over robotically-mediated actions. These findings provide a neurophysiological basis for monitoring integration mechanisms and enhancing subjective experience in human-machine interactions.
FRONTIERS IN NEUROROBOTICS
(2023)
Article
Multidisciplinary Sciences
Apoorva Karsolia, Scott B. Stevenson, Vallabh E. Das
Summary: This study found that the precision of spatial localization decreases over time during binocular dissociation. Localization errors were significantly greater for alternate-eye trials compared to same-eye trials and correlated with the average phoria of each subject. The data suggests that spatial localization during binocular dissociation may involve combining a reliable versional efference copy signal with an unreliable proprioceptive signal.
SCIENTIFIC REPORTS
(2021)
Article
Neurosciences
R. Chris Miall, Daria Afanasyeva, Jonathan D. Cole, Peggy Mason
Summary: Studies have shown that regaining some motor control after adult-onset loss of proprioceptive and touch input heavily depends on cognitive control. By contrasting the performance of IW and KS, it is suggested that KS may have some advantage in automating simple visually-guided actions. In contrast, IW is unable to achieve this level of automation. The dual task of writing and drawing performed with and without an audio-verbal echoing task showed differences in visuo-motor performance between the two individuals.
EXPERIMENTAL BRAIN RESEARCH
(2021)
Article
Computer Science, Artificial Intelligence
Mei Liu, Bo Peng, Mingsheng Shang
Summary: Research on intention recognition of lower limb rehabilitation robot requires consideration of normal movement intentions before improving models to recognize patient intentions. A projected recurrent neural network (PRNN) model has been proposed to address convergence speed limitations of traditional RNN models, showing successful application in experimental intention recognition of lower limb movements.
COMPLEX & INTELLIGENT SYSTEMS
(2022)
Article
Physiology
Ho Seon Choi, Hyunki In
Summary: This paper investigates how an inappropriate height of the work-table affects the task performance of workers who are performing a fine manipulative task that requires high accuracy of the end point. The experiment found that an inappropriate height of a table brings about muscle fatigue, and time elapsed for conducting tasks accelerated the phenomenon. Improved movement stability is not enough to compensate for the negative effects caused by muscle fatigue.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Clinical Neurology
Umar Muhammad Bello, Chetwyn C. H. Chan, Stanley John Winser
Summary: The complexity and clarity of finger movements were found to increase neural activities in the ipsilesional motor cortex in post-stroke patients, suggesting potential roles for top-down attention and working memory in mirror therapy effects. Future research using longitudinal design is needed to further investigate the efficacy of mirror therapy in promoting upper limb motor recovery in post-stroke patients.
FRONTIERS IN NEUROLOGY
(2021)
Article
Physiology
Jasmine A. Berry, Ali Marjaninejad, Francisco J. Valero-Cuevas
Summary: This study used a simulated limb model to investigate the discrimination of limb movements based on muscle spindle signals. It found that projecting these signals onto their principal components greatly improved the accuracy of movement discrimination.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Neurosciences
Rossitza Draganova, Frank Konietschke, Katharina M. Steiner, Naveen Elangovan, Meltem Guemues, Sophia M. Goericke, Thomas M. Ernst, Andreas Deistung, Thilo van Eimeren, Juergen Konczak, Dagmar Timmann
Summary: The study found that cerebellar patients can improve motor performance through practice, but the impact of different types of feedback on learning remains unclear. After training, differences in gray matter volume changes were observed between the control group and cerebellar patients, indicating that compensatory remodeling manifests differently in different brain regions.
HUMAN BRAIN MAPPING
(2022)
Article
Clinical Neurology
Andreas Thieme, Jennifer Faber, Patricia Sulzer, Kathrin Reetz, Imis Dogan, Miriam Barkhoff, Janna Krahe, Heike Jacobi, Julia-Elisabeth Aktories, Martina Minnerop, Saskia Elben, Raquel van der Veen, Johanna Mueller, Giorgi Batsikadze, Juergen Konczak, Matthis Synofzik, Sandra Roeske, Dagmar Timmann
Summary: This multicenter study tested the ability of the CCAS-Scale to diagnose CCAS in individual patients with common forms of hereditary ataxia. The results showed that the CCAS-Scale had limited ability to diagnose CCAS in individual patients, especially in milder cases with a substantial number of false-positive results. SCA3 patients performed the worst, with lower scores compared to SCA6 and FRDA patients.
JOURNAL OF NEUROLOGY
(2022)
Correction
Engineering, Biomedical
I. -Ling Yeh, Jessica Holst-Wolf, Naveen Elangovan, Anna Vera Cuppone, Kamakshi Lakshminarayan, Leonardo Cappello, Lorenzo Masia, Juergen Konczak
JOURNAL OF NEUROENGINEERING AND REHABILITATION
(2022)
Article
Neurosciences
Jinseok Oh, Arash Mahnan, Jiapeng Xu, Hannah J. Block, Jurgen Konczak
Summary: The typical development of finger position sense from late childhood to adulthood is characterized by an age-dependent increase in proprioceptive precision, rather than a decrease in bias.
JOURNAL OF MOTOR BEHAVIOR
(2023)
Article
Engineering, Biomedical
Daniele D'Accolti, Katarina Dejanovic, Leonardo Cappello, Enzo Mastinu, Max Ortiz-Catalan, Christian Cipriani
Summary: The design of prosthetic controllers using neurophysiological signals remains a significant challenge for bioengineers. Existing electromyographic (EMG) continuous pattern recognition controllers rely on assumptions of stable EMG patterns, which we challenge. We propose an algorithm that decodes wrist and hand movements based on transient EMG signals. Our offline evaluations show promising results with non-amputees achieving a median accuracy of around 96%, while amputees achieved a median accuracy of around 89%. Further assessments with domain-adaptation strategies may be needed for amputees. Overall, our results support the hypothesis that decoding transient EMG signals can be a viable pattern recognition strategy for prosthetic controllers.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Article
Robotics
Leonardo Cappello, Daniele D'Accolti, Marta Gherardini, Marco Controzzi, Christian Cipriani
Summary: Restoring the function of a missing hand remains a major challenge for bioengineers. Recent advancements in myoelectric hand prostheses and their controllers have been significant, but the wrist joint is often overlooked. We propose a design for a prosthetic wrist that can transition between compliant and stiff modes, providing flexibility for reaching and stability during manipulation.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2023)
Article
Engineering, Biomedical
Qiyin Huang, Bin Zhong, Naveen Elangovan, Mingming Zhang, Jurgen Konczak
Summary: This study presents a fast and accurate method to assess human ankle motion sense acuity using a robotic device. The results show that the perception of ankle motion velocity has a bias, which increases with the reference velocity.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Meeting Abstract
Hospitality, Leisure, Sport & Tourism
Leoni Viola Winter, Stefan Panzer, Jurgen Konczak
JOURNAL OF SPORT & EXERCISE PSYCHOLOGY
(2023)
Article
Engineering, Biomedical
F. Masiero, I. Fagioli, L. Truppa, A. Mannini, L. Cappello, M. Controzzi
Summary: Recent studies have shown that dimensionality reduction techniques can simplify the description of human upper limb motion and be applied to robotic joints. A structured methodology using time warping and task segmentation was proposed to align and process upper limb kinematic data. Functional principal component analysis (fPCA) extracted patterns of wrist motion, with three fPCs explaining over 85% of the variance. Wrist trajectories in the reaching phase were highly correlated among participants and more so than in the manipulation phase, which has implications for robotic control and therapy development.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Article
Neurosciences
Jacquelyn V. L. Sertic, Nicole Fall, Juergen Konczak
Summary: This study investigated whether physically active middle-aged and older adults demonstrate age-related decline in ankle proprioception and found that active aging adults may be spared from this decline, especially for small ankle displacements.
JOURNAL OF MOTOR BEHAVIOR
(2023)
Article
Otorhinolaryngology
Stephanie Misono, Jiapeng Xu, Jinseok Oh, Anna Sombrio, Ali Stockness, Arash Mahnan, Jurgen Konczak
Summary: Unexplained chronic cough is a common condition with significant negative impact on quality of life. This study aimed to investigate whether individuals with chronic cough exhibit abnormal neural processing during voluntary laryngeal motor activity. The findings suggest that chronic cough affects sensorimotor cortical activity during vocalization.
JAMA OTOLARYNGOLOGY-HEAD & NECK SURGERY
(2023)
Proceedings Paper
Computer Science, Artificial Intelligence
Michele Francesco Penna, Emilio Trigili, Loredana Zollo, Christian Cipriani, Leonardo Cappello, Marco Controzzi, Stefania Dalise, Carmelo Chisari, Emanuele Gruppioni, Simona Crea, Nicola Vitiello
Summary: This study presents the results of a focus group discussion on the functional and technical requirements of a novel upper-limb assistive device for post-stroke and brachial plexus injury subjects. The device will integrate an upper-limb exoskeleton, functional electrical stimulation, and a sensory feedback glove to restore both motor and sensory functions.
COMPUTERS HELPING PEOPLE WITH SPECIAL NEEDS, ICCHP-AAATE 2022, PT II
(2022)
Meeting Abstract
Hospitality, Leisure, Sport & Tourism
Jacquelyn Sertic, Jurgen Konczak
JOURNAL OF SPORT & EXERCISE PSYCHOLOGY
(2022)
Review
Rehabilitation
Leoni Winter, Qiyin Huang, Jacquelyn V. L. Sertic, Jurgen Konczak
Summary: This study systematically reviewed recent empirical evidence on proprioceptive training and found that it can lead to significant improvements in proprioceptive and motor function, especially in clinical populations. Joint position sense error was identified as a reliable and feasible measure for clinical use.
FRONTIERS IN REHABILITATION SCIENCES
(2022)