Results 31 to 40 of about 120,360 (287)

Reaching in clutter with whole-arm tactile sensing [PDF]

The International Journal of Robotics Research, 2013
Clutter creates challenges for robot manipulation, including a lack of non-contact trajectories and reduced visibility for line-of-sight sensors. We demonstrate that robots can use whole-arm tactile sensing to perceive clutter and maneuver within it, while keeping contact forces low.
Jain, Advait, Killpack, Marc D., Edsinger, Aaron, Kemp, Charles C.   +3 more
openaire   +2 more sources

Physical demand but not dexterity is associated with motor flexibility during rapid reaching in healthy young adults [PDF]

, 2015
Healthy humans are able to place light and heavy objects in small and large target locations with remarkable accuracy. Here we examine how dexterity demand and physical demand affect flexibility in joint coordination and end-effector kinematics when ...
Hortobágyi, Tibor, Tibor Hortobàgyi, Bongers, Raoul M.; id_orcid, Hortobagyi, Tibor; id_orcid, Christian Greve (476849), Christian Greve, Bongers, Raoul, Bongers Raoul M., Bongers, Raoul M., Hortobàgyi Tibor, Raoul M. Bongers (476850), Raoul M Bongers, Tibor Hortobàgyi (5663497), Greve Christian, Greve, Christian   +14 more
core   +1 more source

Unifying Speed-Accuracy Trade-Off and Cost-Benefit Trade-Off in Human Reaching Movements

Frontiers in Human Neuroscience, 2017
Two basic trade-offs interact while our brain decides how to move our body. First, with the cost-benefit trade-off, the brain trades between the importance of moving faster toward a target that is more rewarding and the increased muscular cost resulting ...
Luka Peternel, Luka Peternel, Olivier Sigaud, Jan Babič   +3 more
doaj   +1 more source

Monitoring Arm Movements Post-Stroke for Applications in Rehabilitation and Home Settings

IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022
Optimal recovery of arm function following stroke requires patients to perform a large number of functional arm movements in clinical therapy sessions, as well as at home.
Juan Pablo Gomez-Arrunategui, Janice J. Eng, Antony J. Hodgson   +2 more
doaj   +1 more source

Reaching in reality and virtual reality: a comparison of movement kinematics in healthy subjects and in adults with hemiparesis

Journal of NeuroEngineering and Rehabilitation, 2004
Background Virtual reality (VR) is an innovative tool for sensorimotor rehabilitation increasingly being employed in clinical and community settings. Despite the growing interest in VR, few studies have determined the validity of movements made in VR ...
Feldman Anatol G, Viau Antonin, McFadyen Bradford J, Levin Mindy F   +3 more
doaj   +1 more source

Impairments of the arm and hand are highly correlated during subacute stroke

Journal of Rehabilitation Medicine, 2023
Background: The classical description of poststroke upper limb impairment follows a proximalto-distal impairment gradient. Previous studies are equivocal on whether the hand is more impaired than the arm.
Lydia N. Reid, Sean P. Dukelow, Stephen H. Scott   +2 more
doaj   +1 more source

Evolution of prehension ability in an anthropomorphic neurorobotic arm

Frontiers in Neurorobotics, 2007
In this paper, we show how a simulated anthropomorphic robotic arm controlled by an artificial neural network can develop effective reaching and grasping behaviour through a trial and error process in which the free parameters encode the control rules ...
Gianluca Massera, Gianluca Massera, Angelo Cangelosi, Stefano Nolfi   +3 more
doaj   +1 more source

Generalizability of muscle synergies in isometric force generation versus point-to-point reaching in the human upper extremity workspace

Frontiers in Human Neuroscience, 2023
Isometric force generation and kinematic reaching in the upper extremity has been found to be represented by a limited number of muscle synergies, even across task-specific variations.
Katherine Pham, Manuel Portilla-Jiménez, Jinsook Roh   +2 more
doaj   +1 more source

Coding of reaching in 3-D space

, 2013
Many psychophysical studies suggest that target depth and direction during reaches are processed independently, but the neurophysiological support to this view is so far limited.
Bertozzi, Federica <1985>
core   +1 more source

Bionics Solution to Learn the Arm Reaching with Collision Avoidance

Applied Bionics and Biomechanics, 2005
This article presents a learning model that simulates the control of an anthropomorphic arm kinematics motion. The objective is to reach and grasp a static prototypic object placed behind different kinds of obstacle in size and position.
P. Gorce, P. Bendahan
doaj   +1 more source