@article{MTMT:34616191, title = {Effect of Virtual Reality Upper Limb Rehabilitation Training on Older Adults}, url = {https://m2.mtmt.hu/api/publication/34616191}, author = {Gu, Xiaosong and Fan, Zhijun and Liu, Heshan and Bu, Lingguo and Li, Puhong}, doi = {10.1080/00222895.2024.2304796}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, unique-id = {34616191}, issn = {0022-2895}, abstract = {Virtual reality has gained more attention in the physical training field, but few studies focus on the effects of VR on older adults. Based on existing study we suggest that VR-based upper limb training might be more effective for older adults and used functional near inferred spectrum and movement analysis to evaluate the effects of VR-based training on older adults. 20 older and 20 youth adults were recruited to perform VR training by extending their upper limb to reaching the objects, and non-VR training as a contrast. Both age-related and task-related differences were found in cortical activation, showing that the VR training has aroused more cortical activation. The older groups have more intensive movement but perform worse in terms of task completion. Both groups performed better in VR, and the difference in the older group was higher.}, keywords = {OLDER ADULTS; Virtual reality; upper limb rehabilitation; functional near infrared spectrum}, year = {2024}, eissn = {1940-1027} } @article{MTMT:34595915, title = {Short-Term Modulation of Online Monocular Visuomotor Function}, url = {https://m2.mtmt.hu/api/publication/34595915}, author = {Oancea, Gabriela and Manzone, Damian M. and Tremblay, Luc}, doi = {10.1080/00222895.2024.2306322}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, unique-id = {34595915}, issn = {0022-2895}, abstract = {Previous literature suggests that correcting ongoing movements is more effective when using the dominant limb and seeing with the dominant eye. Specifically, individuals are more effective at adjusting their movement to account for an imperceptibly perturbed or changed target location (i.e., online movement correction), when vision is available to the dominant eye. However, less is known if visual-motor functions based on monocular information can undergo short-term neuroplastic changes after a bout of practice, to improve online correction processes. Participants (n = 12) performed pointing movements monocularly and their ability to correct their movement towards an imperceptibly displaced target was assessed. On the first day, the eye associated with smaller correction amplitudes was exclusively trained during acquisition. While correction amplitude was assessed again with both eyes monocularly, only the eye with smaller correction amplitudes in the pre-test showed significant improvement in delayed retention. These results indicate that monocular visuomotor pathways can undergo short-term neuroplastic changes.}, keywords = {neural plasticity; motor control; visual asymmetry; limb trajectory corrections; manual aiming}, year = {2024}, eissn = {1940-1027}, orcid-numbers = {Oancea, Gabriela/0009-0002-2379-2015} } @article{MTMT:34664612, title = {Age and Type of Task-Based Impact of Mental Fatigue on Balance: Systematic Review and Meta-Analysis}, url = {https://m2.mtmt.hu/api/publication/34664612}, author = {Salihu, Abubakar Tijjani and Hill, Keith D. and Jaberzadeh, Shapour}, doi = {10.1080/00222895.2023.2299706}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, unique-id = {34664612}, issn = {0022-2895}, keywords = {Aging; Balance control; mental fatigue; types of balance tasks}, year = {2023}, eissn = {1940-1027} } @article{MTMT:34585431, title = {Decoding the Spike-Band Subthreshold Motor Cortical Activity}, url = {https://m2.mtmt.hu/api/publication/34585431}, author = {Okatan, Murat and Kocaturk, Mehmet}, doi = {10.1080/00222895.2023.2280263}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, unique-id = {34585431}, issn = {0022-2895}, abstract = {Intracortical Brain-Computer Interfaces (iBCI) use single-unit activity (SUA), multiunit activity (MUA) and local field potentials (LFP) to control neuroprosthetic devices. SUA and MUA are usually extracted from the bandpassed recording through amplitude thresholding, while subthreshold data are ignored. Here, we show that subthreshold data can actually be decoded to determine behavioral variables with test set accuracy of up to 100%. Although the utility of SUA, MUA and LFP for decoding behavioral variables has been explored previously, this study investigates the utility of spike-band subthreshold activity exclusively. We provide evidence suggesting that this activity can be used to keep decoding performance at acceptable levels even when SUA quality is reduced over time. To the best of our knowledge, the signals that we derive from the subthreshold activity may be the weakest neural signals that have ever been extracted from extracellular neural recordings, while still being decodable with test set accuracy of up to 100%. These results are relevant for the development of fully data-driven and automated methods for amplitude thresholding spike-band extracellular neural recordings in iBCIs containing thousands of electrodes.}, keywords = {POPULATION ACTIVITY; primary motor cortex; SPIKING; neural noise; amplitude thresholds}, year = {2023}, eissn = {1940-1027} } @article{MTMT:34450644, title = {The Complexity of Head Movement is Correlated with Learning about Affordances for Walking}, url = {https://m2.mtmt.hu/api/publication/34450644}, author = {Peterson, Nicolette A. and Hajnal, Alen and Wagman, Jeffrey B. and Stoffregen, Thomas A.}, doi = {10.1080/00222895.2023.2293000}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, volume = {Előzetes kiadás / Early view}, unique-id = {34450644}, issn = {0022-2895}, year = {2023}, eissn = {1940-1027}, orcid-numbers = {Stoffregen, Thomas A./0000-0003-1467-9168} } @article{MTMT:34319389, title = {Acute Effects of Strength and Skill Training on the Cortical and Spinal Circuits of Contralateral Limb}, url = {https://m2.mtmt.hu/api/publication/34319389}, author = {Capozio, Antonio and Chakrabarty, Samit and Astill, Sarah}, doi = {10.1080/00222895.2023.2265316}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, unique-id = {34319389}, issn = {0022-2895}, abstract = {Unilateral strength and skill training increase strength and performance in the contralateral untrained limb, a phenomenon known as cross-education. Recent evidence suggests that similar neural mechanisms might be responsible for the increase in strength and skill observed in the untrained hand after unimanual training. The aims of this study were to: investigate whether a single session of unimanual strength and skill (force-tracking) training increased strength and skill in the opposite hand; measure ipsilateral (untrained) brain (via transcranial magnetic stimulation, TMS) and spinal (via the monosynaptic reflex) changes in excitability occurring after training; measure ipsilateral (untrained) pathway-specific changes in neural excitability (via TMS-conditioning of the monosynaptic reflex) occurring after training. Participants (N = 13) completed a session of unimanual strength (ballistic isometric wrist flexions) and skill (force-tracking wrist flexions) training on two separate days. Strength increased after training in the untrained hand (p = 0.025) but not in the trained hand (p = 0.611). Force-tracking performance increased in both the trained (p = 0.007) and untrained (p = 0.010) hand. Corticospinal excitability increased after force-tracking and strength training (p = 0.027), while spinal excitability was not affected (p = 0.214). TMS-conditioned monosynaptic reflex increased after force-tracking (p = 0.001) but not strength training (p = 0.689), suggesting a possible role of polysynaptic pathways in the increase of cortical excitability observed after training. The results suggest that cross-education of strength and skill at the acute stage is supported by increased excitability of the untrained motor cortex.New & Noteworthy: A single session of isometric wrist flexion strength and skill straining increased strength and skill in the untrained limb. The excitability of the untrained motor cortex increased after strength and skill training. TMS-conditioned H-reflexes increased after skill but not strength training in the untrained hand, indicating that polysynaptic pathways in the increase of cortical excitability observed after skill training.}, keywords = {transcranial magnetic stimulation; H-Reflex; strength training; Cross-education; skill training}, year = {2023}, eissn = {1940-1027}, orcid-numbers = {Astill, Sarah/0000-0002-9443-6934} } @article{MTMT:34250653, title = {Somatosensory Information in Skilled Motor Performance: A Narrative Review}, url = {https://m2.mtmt.hu/api/publication/34250653}, author = {Whittier, Tyler T. and Patrick, Christopher M. and Fling, Brett W.}, doi = {10.1080/00222895.2023.2213198}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, unique-id = {34250653}, issn = {0022-2895}, abstract = {Historically, research aimed at improving motor performance has largely focused on the neural processes involved in motor execution due to their role in muscle activation. However, accompanying somatosensory and proprioceptive sensory information is also vitally involved in performing motor skills. Here we review research from interdisciplinary fields to provide a description for how somatosensation informs the successful performance of motor skills as well as emphasize the need for careful selection of study methods to isolate the neural processes involved in somatosensory perception. We also discuss upcoming strategies of intervention that have been used to improve performance via somatosensory targets. We believe that a greater appreciation for somatosensation's role in motor learning and control will enable researchers and practitioners to develop and apply methods for the enhancement of human performance that will benefit clinical, healthy, and elite populations alike.}, keywords = {motor control; proprioception; Sensory integration; Somatosensation; sensory uncertainty}, year = {2023}, eissn = {1940-1027} } @article{MTMT:34138952, title = {Updating of Implicit Adaptation Processes through Erroneous Numeric Feedback}, url = {https://m2.mtmt.hu/api/publication/34138952}, author = {Larssen, Beverley C. and Hodges, Nicola J.}, doi = {10.1080/00222895.2023.2232739}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, volume = {55}, unique-id = {34138952}, issn = {0022-2895}, abstract = {There is debate about how implicit and explicit processes interact in sensorimotor adaptation, implicating how error signals drive learning. Target error information is thought to primarily influence explicit processes, therefore manipulations to the veracity of this information should impact adaptation but not implicit recalibration (i.e. after-effects). Thirty participants across three groups initially adapted to rotated cursor feedback. Then we manipulated numeric target error through knowledge of results (KR) feedback, where groups practised with correct or incorrect (+/-15 & DEG;) numeric KR. Participants adapted to erroneous KR, but only the KR + 15 group showed augmented implicit recalibration, evidenced by larger after-effects than before KR exposure. In the presence of sensory prediction errors, target errors modulated after-effects, suggesting an interaction between implicit and explicit processes.}, keywords = {KNOWLEDGE; Psychology; ERROR; INTERFERENCE; Neurosciences; proprioception; Psychology, Experimental; Sensorimotor adaptation; Visuomotor adaptation; Sensory prediction; Skill acquisition; SENSORY PREDICTION ERRORS; EXPLICIT STRATEGY; adaptation learning; knowledge of results; target errors}, year = {2023}, eissn = {1940-1027}, pages = {475-492} } @article{MTMT:34350216, title = {Coordination Rigidity in the Gait, Posture, and Speech of Persons with Parkinson's Disease}, url = {https://m2.mtmt.hu/api/publication/34350216}, author = {Dotov, Dobromir and de Cock, Valerie Cochen and Driss, Valerie and Bardy, Benoit and Dalla Bella, Simone}, doi = {10.1080/00222895.2023.2217100}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, volume = {55}, unique-id = {34350216}, issn = {0022-2895}, abstract = {Parkinson's disease (PD) is associated with reduced coordination abilities. These can result either in random or rigid patterns of movement. The latter, described here as coordination rigidity (CR), have been studied less often. We explored whether CR was present in gait, quiet stance, and speech-tasks involving coordination among multiple joints and muscles. Kinematic and voice recordings were used to compute measures describing the dynamics of systems with multiple degrees of freedom and nonlinear interactions. After clinical evaluation, patients with moderate stage PD were compared against matched healthy participants. In the PD group, gait dynamics was associated with decreased dynamic divergence-lower instability-in the vertical axis. Postural fluctuations were associated with increased regularity in the anterior-posterior axis, and voice dynamics with increased predictability, all consistent with CR. The clinical relevance of CR was confirmed by showing that some of those features contribute to disease classification with supervised machine learning (82/81/85% accuracy/sensitivity/specificity).}, keywords = {CLASSIFICATION; Posture; complexity; Gait stability}, year = {2023}, eissn = {1940-1027}, pages = {394-409} } @article{MTMT:34039815, title = {Imitation of Touching Dangerous Animals Triggers Motor Inhibition in a Primed Target Grasping-Categorization Task}, url = {https://m2.mtmt.hu/api/publication/34039815}, author = {Liu, Peng and Zheng, Jiali and Wang, Jiaxin and Wang, Chunyuan and Wang, Yongchun and Lin, Leyun and Wang, Yonghui}, doi = {10.1080/00222895.2023.2217109}, journal-iso = {J MOTOR BEHAV}, journal = {JOURNAL OF MOTOR BEHAVIOR}, volume = {55}, unique-id = {34039815}, issn = {0022-2895}, abstract = {The present study adopted a primed target grasping-categorization task and selected pictures of animals as target stimuli to investigate whether motor inhibition influences the motor interference effect of dangerous animals. The results identified more positive P2 and P3 amplitudes accompanied by larger delta event-related synchronization in the dangerous condition than in the neutral condition, suggesting that compared to neutral animal targets, dangerous animal targets attracted increased attentional resources in early processing and that subjects recruited more cognitive resources to process dangerous animal targets than neutral animal targets. Moreover, the results identified larger theta event-related synchronization (reflecting motor inhibition) in the dangerous condition than in the neutral condition. Thus, the results suggested that prepared motor responses were inhibited to avoid touching dangerous animal targets in the current task, supporting that motor inhibition influences the motor interference effect of dangerous animals based on a primed target grasping-categorization task.}, keywords = {PERFORMANCE; Psychology; OSCILLATIONS; event-related potentials; DELTA; INTERFERENCE; COMPONENT; COGNITIVE CONTROL; time-frequency analysis; Neurosciences; RESPONSE-INHIBITION; Psychology, Experimental; theta-band oscillations; MOTOR INHIBITION; motor interference effect; dangerous animal}, year = {2023}, eissn = {1940-1027}, pages = {410-422} }