Article
Neurosciences
Sarah K. Wandelt, Spencer Kellis, David A. Bjanes, Kelsie Pejsa, Brian Lee, Charles Liu, Richard A. Andersen
Summary: This study found that neural signals from high-level areas of the human cortex can be used for grasping and speech brain-machine interface applications. The supramarginal gyrus and ventral premotor cortex in the cortical grasp network can encode the planning and execution of grasps, as well as process aspects of spoken and written language.
Article
Neurosciences
Michael P. Trevarrow, Hannah E. Bergwell, Boman R. Groff, Alex I. Wiesman, Tony W. Wilson, Max J. Kurz
Summary: There are clinical reports indicating that youth with cerebral palsy (CP) have deficits in proprioception, stereognosis, and tactile discrimination. It is believed that these altered perceptions are due to abnormal somatosensory cortical activity during stimulus processing. However, this conjecture has not been tested.
Article
Agriculture, Multidisciplinary
Xiaojing Chen, Bo Peng, Runyun Huang, Shuo Wang, Zhixiao Yang
Summary: This study investigates the force distribution during stable thumb-index finger power-grasp of fruit. Significant differences were found in the percentage contribution of normal forces among power-grasp regions, fruit size, power-grasp postures, and centre of mass. The contribution of normal forces on the distal phalanx of the thumb and index finger was larger than other regions. The longitudinal power-grasp posture was found to be more efficient than the horizontal power-grasp. The distribution of normal forces on each grasping region should be adjusted based on the centre of mass location.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2022)
Article
Neurosciences
Qian Chu, Ou Ma, Yuqi Hang, Xing Tian
Summary: This study investigates the neural origin and generation process of top-down induced prediction from motor and memory systems to sensory cortices. Using fMRI and a dual imagery paradigm, the researchers found that motor and memory upstream systems activate the auditory cortex in a content-specific manner. Additionally, the inferior and posterior parts of the parietal lobe relay predictive signals differently in motor-to-sensory and memory-to-sensory networks. Dynamic causal modeling of directed connectivity reveals the distinctive neurocognitive basis of predictive processing.
Article
Multidisciplinary Sciences
Masato Shindo, Takashi Isezaki, Yukio Koike, Ryosuke Aoki
Summary: This study investigates the difference in the induced effects of electrical muscle stimulation (EMS) and visual sensory augmentation (visual SA) on sensory reweighting dynamics during standing on a balance board. The results show that the effects of EMS and visual SA on sensory reweighting dynamics are quantitatively different. The findings suggest that the choice of stimulation method can lead to different effects on sensory reweighting dynamics.
Article
Neurosciences
Giulio Matteucci, Maelle Guyoton, Johannes M. Mayrhofer, Matthieu Auffret, Georgios Foustoukos, Carl C. H. Petersen, Sami El-Boustani
Summary: Behavioral states have an impact on the performance and learning of sensorimotor tasks, and this is related to altered neuronal sensory representations. In a study using water-restricted mice, it was found that cortical circuits and state-dependent sensory processing changes play a role in perceptual decision-making.
Article
Multidisciplinary Sciences
Jeffrey D. Laurence-Chasen, Callum F. Ross, Fritzie I. Arce-McShane, Nicholas G. Hatsopoulos
Summary: The authors successfully decoded complex tongue deformation from sensorimotor cortex neurons, indicating a cortical representation of 3D tongue shape. They used biplanar x-ray video technology, multi-electrode cortical recordings, and machine-learning-based decoding to explore the cortical representation of lingual deformation.
NATURE COMMUNICATIONS
(2023)
Article
Business
J. S. Gallego, I. Ortiz-Marcos, J. Romero Ruiz
Summary: The study highlights the importance of correctly planning human resources, risk, and communication management when virtual teams are included in project teams, while also emphasizing the significance of virtual teams in project planning processes. By using fuzzy set Qualitative Comparative Analysis (fsQCA), the study identifies hidden impacts of virtual teams in key project planning processes.
TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE
(2021)
Article
Clinical Neurology
Olivia Samotus, Robert Chen, Mandar Jog
Summary: The study investigated the relationship between BoNT-A treatment, tremor amplitude, and modulation of intracortical excitability in early, tremor-dominant PD patients using pp-TMS. Findings suggest that tremor severity in early PD may be related to impaired intracortical inhibition and defective sensorimotor integration.
Article
Multidisciplinary Sciences
Vandana Sampathkumar, Andrew Miller-Hansen, S. Murray Sherman, Narayanan Kasthuri
Summary: The study found that higher order thalamic neurons integrate signals from different cortical populations, with a significant convergence of inputs from the somatosensory and motor cortices on these neurons. These neurons are not simply relaying afferent information but instead integrating signals from disparate cortical regions, indicating a complex role of the higher order thalamus in overall cortical functioning.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biology
Gaiqing Kong, Antonio Cataldo, Miruna Nitu, Lucile Dupin, Hiroaki Gomi, Patrick Haggard
Summary: During self-touch, the combination of kinaesthetic and tactile signals affects haptic perceptions. The size of perceived bumps is influenced by changes in tactile pressure.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Review
Psychology, Multidisciplinary
Sonia Betti, Umberto Castiello, Chiara Begliomini
Summary: This review investigates how reach-to-grasp movements are influenced by multisensory information, emphasizing the importance of multisensory elements in shaping prehensile behavior and providing some considerations for future research developments.
FRONTIERS IN PSYCHOLOGY
(2021)
Article
Multidisciplinary Sciences
Karthikeyan Balasubramanian, Fritzie I. Arce-McShane, Brian M. Dekleva, Jennifer L. Collinger, Nicholas G. Hatsopoulos
Summary: A spatiotemporal pattern of excitability propagates across the primary motor cortex prior to voluntary movements in non-human primates, and this pattern was also observed in a human participant during a wrist extension task. The propagation directions were bimodally distributed across the cortical sheet with opposite orientations, while the propagation speed was unimodally distributed and similar across tasks and species. The results suggest that this propagating pattern is a generic movement initiation signal that is invariant to kinematic or kinetic details.
Article
Neurosciences
Pierre Petitet, Gershon Spitz, Uzay E. Emir, Heidi Johansen-Berg, Jacinta O'Shea
Summary: As individuals age, a natural decline in GABA in the sensorimotor cortex leads to increased adaptation memory. Brain stimulation can further lower GABA levels, with the impact on memory dependent on the excitation/inhibition balance in the sensorimotor cortex.
Article
Multidisciplinary Sciences
Noriaki Kanayama, Masayuki Hara, Kenta Kimura
Summary: Virtual reality allows for fast and controllable experimental body image settings, with EEG oscillatory activities providing insights into human multisensory integration processes. However, EEG data recorded in VR environments may be vulnerable to noise, posing challenges for measurement and analysis. The study highlights differences in brain activities between real and VR settings, emphasizing the need to consider these differences in investigating bodily self-perception using VR.
SCIENTIFIC REPORTS
(2021)
Article
Neurosciences
A. Pomante, L. P. J. Selen, F. Romano, C. J. Bockisch, A. A. Tarnutzer, G. Bertolini, W. P. Medendorp
Summary: The perception of vertical relies on vestibular and visual cues. This study found that sustained exposure to panoramic and vestibular cues has a local effect on the subsequent perception of vertical, which is mediated by head orientation.
JOURNAL OF VESTIBULAR RESEARCH-EQUILIBRIUM & ORIENTATION
(2022)
Article
Multidisciplinary Sciences
Luke E. Miller, Cecile Fabio, Malika Azaroual, Dollyane Muret, Robert J. van Beers, Alessandro Farne, W. Pieter Medendorp
Summary: This study proposes that the somatosensory system may implement multilateration to decode touch location on the body by estimating the relative distance between afferent input and body part boundaries. A simple feed forward neural network was shown to be able to implement this computation, and the computational signature of multilateration was identified in psychophysical experiments.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Psychology, Developmental
Erik Verhaar, Wijbrand Pieter Medendorp, Sabine Hunnius, Janny C. Stapel
Summary: The study suggests that information from different sensory modalities can be integrated to improve perceptual precision. Both adults and adolescents tend to bias their localization towards the visual stimulus when presented with visual and tactile stimuli, especially when the stimuli are presented close to each other.
DEVELOPMENTAL SCIENCE
(2022)
Article
Psychology, Experimental
Rui Liu, Sara Bogels, Geoffrey Bird, W. Pieter Medendorp, Ivan Toni
Summary: Referential pointing, a simple communicative behavior, is cognitively complex as it requires communicators to consider addressees' knowledge. This study examines how communicators' inferences about addressees' mental representation of the interaction space influence sensorimotor control of referential pointing. The findings suggest that participants generate communicative behaviors as required and integrate communicative and perspective-taking information hierarchically during sensorimotor control.
Article
Neurosciences
Leonie Oostwoud Wijdenes, Syanah C. Wynn, Bela S. Roesink, Dennis J. L. G. Schutter, Luc P. J. Selen, W. Pieter Medendorp
Summary: Behavioral studies have shown that humans take into account the effect of inertial acceleration on hand choice during body motion. This study used transcranial magnetic stimulation to investigate the integration of body motion information with hand selection. The results indicate that corticospinal excitability is influenced by body motion, suggesting that information about body motion deeply penetrates the motor system.
JOURNAL OF NEUROPHYSIOLOGY
(2022)
Article
Neurosciences
Katrin Sutter, Leonie Oostwoud Wijdenes, Robert J. van Beers, W. Pieter Medendorp
Summary: Professional athletes benefit from practicing even well-practiced movements, as repetition reduces both initial and endpoint variability in a sequence of reaching movements.
JOURNAL OF NEUROPHYSIOLOGY
(2022)
Article
Neurosciences
Sonal Sengupta, W. Pieter Medendorp, Luc P. J. Selen, Peter Praamstra
Summary: The study found that although patients with Parkinson's disease showed deficient motor inhibition, there was no significant difference in how they completed the task within a fixed time compared to the control group. However, PD patients exhibited a reduced propensity in movement initiation and sensory processing.
FRONTIERS IN HUMAN NEUROSCIENCE
(2022)
Letter
Clinical Neurology
Siti N. Yaakub, Tristan A. White, Eric Kerfoot, Lennart Verhagen, Alexander Hammers, Elsa F. Fouragnan
Article
Clinical Neurology
David Attali, Thomas Tiennot, Mark Schafer, Elsa Fouragnan, Jerome Sallet, Charles F. Caskey, Robert Chen, Ghazaleh Darmani, Ellen J. Bubrick, Christopher Butler, Charlotte J. Stagg, Miriam Klein-Fluegge, Lennart Verhagen, Seung-Schik Yoo, Kim Butts Pauly, Jean-Francois Aubry
Summary: Transcranial ultrasound stimulation (TUS) is a safe and effective technique for non-invasive brain stimulation. However, there are no international guidelines for estimating the acoustic attenuation of the human skull. This study proposes a three-layer model to calculate the maximum pressure transmission through the human skull.
Article
Psychology, Developmental
Erik Verhaar, W. Pieter Medendorp, Sabine Hunnius, Janny C. Stapel
Summary: The study examined the development of online reach control in infants aged six and eleven months. Infants reached for a toy while their hand position was tracked, and the toy was either stationary or unexpectedly displaced during the reach. The results showed that both age groups adjusted their reaching movements in the direction of the displacement, but the 11-month-old infants made adjustments within a single movement unit while the 6-month-olds required multiple movement units. This suggests that the reach control system develops a rudimentary replanning capacity by 6 months of age, which further develops into a more sophisticated mechanism by 11 months.
Article
Neurosciences
Judith L. Rudolph, Luc P. J. Selen, W. Pieter Medendorp
Summary: Generalization in motor learning refers to the transfer of learned compensation to other relevant contexts. This study aimed to experimentally examine the time-dependent contributions of different adaptive processes to generalization. Results showed a continuum of evidence for plan-referenced to motion-referenced updating among participants.
JOURNAL OF NEUROPHYSIOLOGY
(2023)
Article
Neurosciences
Lonneke Teunissen, Luc P. J. Selen, W. Pieter Medendorp
Summary: Motor costs influence movement selection. These costs can change when movements are adapted in response to errors. External attribution of errors leads to the selection of a different control policy, while internal attribution initially only evokes online corrections.
JOURNAL OF NEUROPHYSIOLOGY
(2023)
Article
Neurosciences
Johannes Keyser, W. Pieter Medendorp, Leonie Oostwoud Wijdenes, Luc P. J. Selen
Summary: The motor system corrects reaching movements based on estimated limb state, taking into account the task constraints. Visual and proprioceptive signals are initially processed separately and only later combined into a single state estimate at the motor output level.
JOURNAL OF NEUROPHYSIOLOGY
(2023)
Article
Neurosciences
Luke E. Miller, Felix Jarto, W. Pieter Medendorp
Summary: This study aimed to determine the sensory horizon of the human haptic modality. It found that the haptic perception can extend beyond body space up to 6 meters.
JOURNAL OF NEUROPHYSIOLOGY
(2023)
Article
Neurosciences
Luc P. J. Selen, Brian D. Corneil, W. Pieter Medendorp
Summary: Contemporary motor control theories propose competition between multiple motor plans before the winning command is executed. This study shows that muscle activity during immediate response reach task is influenced by the nonchosen target and reveals different phases of directionally tuned activity, indicating an evolution in how the nonchosen target influences muscle activity.
JOURNAL OF NEUROSCIENCE
(2023)
