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A modulation of the primary impulse of manual/video-aiming movements performed without visual feedback has been reported. In the present study, we show that this modulation is modified (a) with increased practice, (b) the use of an aligned visual display, and (c) the availability of visual feedback on alternated trials. However, this modulation was not as efficient as that observed in a normal vision condition, which underlines the primary role of vision to ensure endpoint accuracy. Moreover, this modulation was observed only on the extent component of the task. This last observation indicates that proprioception can be used to modulate the extent component of goal-directed movements but that vision is necessary to modulate their direction.
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http://dx.doi.org/10.1007/s00426-009-0229-z | DOI Listing |
Alzheimers Res Ther
September 2025
Motor Control and Learning Group, Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zurich, Leopold-Ruzicka-Weg 4, Zurich, 8093, Switzerland.
Lancet Microbe
September 2025
Institut Pasteur de Bangui, Bangui, Central African Republic; Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon. Electronic address:
Background: The spread of monkeypox virus (Orthopoxvirus monkeypox) clade Ib from the Democratic Republic of the Congo to neighbouring countries has raised global concerns, leading to WHO declaring mpox a public health emergency on Aug 14, 2024. We applied genomic epidemiology to investigate the causes of recurrent mpox outbreaks in the Central African Republic. We aimed to determine whether frequent zoonotic spillovers or increased human-to-human transmissions are driving mpox epidemiology.
View Article and Find Full Text PDFJ Electromyogr Kinesiol
September 2025
Human Movement Laboratory, School of Health Sciences, Western Sydney University, New South Wales, Australia; Translational Health Research Institute, Western Sydney University, New South Wales, Australia.
Background: Resistance training plays a crucial role in musculoskeletal rehabilitation and athletic performance. Traditional resistance training often underloads the eccentric phase, as muscles generate more force while lengthening. Isokinetic and iso-inertial exercises have been used to overcome this limitation, with both showing greater muscle activity compared to traditional methods, potentially leading to enhanced strength and hypertrophy.
View Article and Find Full Text PDFComput Biol Med
September 2025
Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany. Electronic address:
Lameness in dairy cattle is a prevalent issue that significantly impacts both animal welfare and farm productivity. Traditional lameness detection methods often rely on subjective visual assessment, focusing on changes in locomotion and back curvature. However, these methods can lack consistency and accuracy, particularly for early-stage detection.
View Article and Find Full Text PDFClin Neurophysiol
September 2025
Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
Objective: To compare brain activity before voluntary movement and before the same movement when it was released from suppression. This study examined the Bereitschaftspotential (BP) and beta band event-related desynchronization (bERD) during active blink suppression, contrasting these with voluntary blinking, where these EEG correlates of motor preparation are well-established.
Methods: Fifteen healthy adults performed voluntary blink and blink suppression-release tasks with EEG recording.