19 papers · ranked by Valyu relevance
Liz Araújo Rohr, Thais Invenção Cabral, Murilo Mageste de Moraes, Eloisa Tudella + 1 more
Reaching is defined as the ability to locate and stare at an object and stretch out one or both hands toward its direction to touch or grasp it . This skill emerges in full-term infants approximately at 3-4 months of age , characterizing one of the first stages of voluntary motor development . Reaching also allows…
Matthew I. Becker, Dylan Calame, Julia Wrobel, Abigail L. Person
Mice use reaching movements to grasp and manipulate objects in their environment, similar to primates. Thus, many recent studies use mouse reach to uncover neural control mechanisms, but quantification of mouse reach kinematics remains lacking, limiting understanding. Here we implement several analytical frameworks…
Sasha Reschechtko, Cynthiya Gnanaseelan, J. Andrew Pruszynski
Visually guided reaching is a common motor behavior that engages subcortical circuits to mediate rapid corrections. These circuits help us successfully grasp objects we see, even if those objects move during the reach. Although these neural mechanisms have evolved for interaction with the physical world, they are…
Georgios Paschalidis, Romana Wilschut, Dimitrije Antić, Omid Taheri + 1 more
We develop a local-scene-aware method for detecting plausible directions an object can be reached by a body's arms. We need this to be probabilistic so that we can sample it, get a plausible reaching direction, and condition on this a novel controllable model for reaching body synthesis (CReach, Sec. 3.3) and grasping…
Dongcheng He, Haluk Ogmen
Newborns demonstrate innate abilities in coordinating their sensory and motor systems through reflexes. One notable characteristic is circular reactions consisting of self-generated motor actions that lead to correlated sensory and motor activities. This paper describes a model for goal-directed reaching based on…
Desmond Asante, Shelby Ziccardi, Stephen Guy, Rachel L. Hawe
Assessment of reaching is foundational to upper limb neurorehabilitation. Current neurorehabilitation needs have increased the demand for quantitative clinical assessments of bilateral coordination. Robotics and computer vision for motion tracking are two means to provide relevant quantitative metrics but have many…
Jonathan Juett, Benjamin Kuipers
The young infant explores its body, its sensorimotor system, and the immediately accessible parts of its environment, over the course of a few months creating a model of peripersonal space useful for reaching and grasping objects around it. Drawing on constraints from the empirical literature on infant behavior, we…
Agustin Petroni, M. Julia Carbajal, Mariano Sigman, Matthew Longo
The neurobiology of reaching has been extensively studied in human and non-human primates. However, the mechanisms that allow a subject to decide-without engaging in explicit action-whether an object is reachable are not fully understood. Some studies conclude that decisions near the reach limit depend on motor…
Jill Campbell Stewart, James Gordon, Carolee J Winstein
Background Skilled performance of reach actions includes both anticipatory planning and compensatory adjustments made while moving. The execution of reach actions in a virtual environment (VE) demonstrates similar characteristics to reaches performed in the real-world, however, it is unclear whether the VE itself…
Aslan Bellmann, Leonie Oostwoud Wijdenes, W. Pieter Medendorp
Everyday tasks often involve multiple reaching movements in a sequence, where the choices made for one movement also affect the conditions for subsequent movements. Previous research indicates that humans are capable of planning ahead to optimize such sequences. Here, we ask whether increasing the resistance to…
Filipe Gama, Maksym Shcherban, Matthias Rolf, Matej Hoffmann
—The mechanisms of infant development are far from understood. Learning about one's own body is likely a foundation for subsequent development. Here we look specifically at the problem of how spontaneous touches to the body in early infancy may give rise to first body models and bootstrap further development such as…
Antoine De Comite, Philippe Lefèvre, Frédéric Crevecoeur, Adrian M. Haith
'Adrian M. Haith'] Humans consider the parameters linked to movement goal during reaching to adjust their control strategy online. Indeed, rapid changes in target structure or disturbances interfering with their initial plan elicit rapid changes in behavior. Here, we hypothesize that these changes could result from the…
Josh Merel, David Carlson, Liam Paninski, John P. Cunningham + 1 more
'Steven M Chase'] Neuroprosthetic brain-computer interfaces function via an algorithm which decodes neural activity of the user into movements of an end effector, such as a cursor or robotic arm. In practice, the decoder is often learned by updating its parameters while the user performs a task. When the user’s…
P. M. Hilt, B. Berret, C. Papaxanthis, P. J. Stapley + 1 more
When moving, humans must overcome intrinsic (body centered) and extrinsic (target-related) redundancy, requiring decisions when selecting one motor solution among several potential ones. During classical reaching studies the position of a salient target determines where the participant should reach, constraining the…
Antoine De Comite, Philippe Lefèvre, Frédéric Crevecoeur
Humans consider the parameters linked to movement goal during reaching to adjust their control strategy online. Indeed, rapid changes in target structure or disturbances interfering with their initial plan elicit rapid changes in behavior. Here, we hypothesize that these changes could result from the continuous use of…
Jason P. Gallivan, Craig S. Chapman
Though several features of cognitive processing can be inferred from the discrete measurement [e.g., reaction time (RT), accuracy, etc.] of participants' conscious reports (e.g., verbal or key-press responses), it is becoming increasingly clear that a much richer understanding of these features can be captured from…
Mathieu Delangle, Émilie Poirson, Jean François Petiot
In the field of universal design, taking into account the physical characteristics of the target population during the design process is essential. However, human variability causes difficulty to meet the requirements of comfort and security of a certain percentage of the user population. That's why human factors…
Stephanie Newdick, Nitin Ongole, Tony G. Chen, Edward Schmerling + 2 more
'Mark R. Cutkosky' 'Marco Pavone'] Abstract— Motion planning for a multi-limbed climbing robot must consider the robot's posture, joint torques, and how it uses contact forces to interact with its environment. This paper focuses on motion planning for a robot that uses nontraditional locomotion to explore unpredictable…
Yingdong Qian, Marta Kryven, Tao Gao, Hanbyul Joo + 1 more
planning and body kinematics Authors: ['Yingdong Qian' 'Marta Kryven' 'Tao Gao' 'Hanbyul Joo' 'Josh Tenenbaum'] How to build AI that understands human intentions, and uses this knowledge to collaborate with people? We describe a computational framework for evaluating models of goal inference in the domain of 3D motor…