Proceedings of the Conference on Design and Semantics of Form and Movement - Sense and Sensitivity, DeSForM 2017

2017 ◽  
Keyword(s):  
Author(s):  
J. Treleaven ◽  
M. Dillon ◽  
C. Fitzgerald ◽  
C. Smith ◽  
B. Wright ◽  
...  

2004 ◽  
Vol 17 (3) ◽  
pp. 313-324 ◽  
Author(s):  
Mihail Tanase ◽  
Corneliu Toma ◽  
Dan Popa ◽  
Ioan Lie

This paper is a result of the work done by the authors in the field of movement evaluation at low speed in the atmosphere and low costs of the movement execution. Theoretical and constructive solutions are offered for telemetry of the following features of movement: instant and average speed movement sense and direction, instant position related to a fixed referential. The presented solution, the Doppler radio telemetry system with active fixed referential-described in the paper-was practically realized and experimentally its utility has been demonstrated.


2019 ◽  
Vol 20 (1) ◽  
pp. 17-27 ◽  
Author(s):  
Clémentine Brun ◽  
Nicolas Giorgi ◽  
Anne-Marie Pinard ◽  
Martin Gagné ◽  
Candida S. McCabe ◽  
...  

2011 ◽  
pp. 26-29
Author(s):  
Masahiko Izumizaki ◽  
Uwe Proske
Keyword(s):  

2020 ◽  
Vol 45 ◽  
pp. 102097 ◽  
Author(s):  
Hilla Sarig Bahat ◽  
Phoebe Watt ◽  
Merinda Rhodes ◽  
Dana Hadar ◽  
Julia Treleaven
Keyword(s):  

2011 ◽  
Vol 105 (4) ◽  
pp. 1879-1888 ◽  
Author(s):  
Paul J. Cordo ◽  
Jean-Louis Horn ◽  
Daniela Künster ◽  
Anne Cherry ◽  
Alex Bratt ◽  
...  

In the stationary hand, static joint-position sense originates from multimodal somatosensory input (e.g., joint, skin, and muscle). In the moving hand, however, it is uncertain how movement sense arises from these different submodalities of proprioceptors. In contrast to static-position sense, movement sense includes multiple parameters such as motion detection, direction, joint angle, and velocity. Because movement sense is both multimodal and multiparametric, it is not known how different movement parameters are represented by different afferent submodalities. In theory, each submodality could redundantly represent all movement parameters, or, alternatively, different afferent submodalities could be tuned to distinctly different movement parameters. The study described in this paper investigated how skin input and muscle input each contributes to movement sense of the hand, in particular, to the movement parameters dynamic position and velocity. Healthy adult subjects were instructed to indicate with the left hand when they sensed the unseen fingers of the right hand being passively flexed at the metacarpophalangeal (MCP) joint through a previously learned target angle. The experimental approach was to suppress input from skin and/or muscle: skin input by anesthetizing the hand, and muscle input by unexpectedly extending the wrist to prevent MCP flexion from stretching the finger extensor muscle. Input from joint afferents was assumed not to play a significant role because the task was carried out with the MCP joints near their neutral positions. We found that, during passive finger movement near the neutral position in healthy adult humans, both skin and muscle receptors contribute to movement sense but qualitatively differently. Whereas skin input contributes to both dynamic position and velocity sense, muscle input may contribute only to velocity sense.


1994 ◽  
Vol 57 (3) ◽  
pp. 382-383 ◽  
Author(s):  
A Swinkels ◽  
C D Ward ◽  
J Bagust
Keyword(s):  

2018 ◽  
Vol 125 (4) ◽  
pp. 972-982 ◽  
Author(s):  
Julia Missitzi ◽  
Nickos Geladas ◽  
Angelica Misitzi ◽  
Leonidas Misitzis ◽  
Joseph Classen ◽  
...  

Heritability studies using the twin model have provided the basis to disentangle genetic and environmental factors that contribute to several complex human traits. However, the relative importance of these factors to individual differences in proprioception is largely unknown despite the fact that proprioceptive senses are of great importance, allowing us to respond to stimuli stemming from the space around us and react to altering circumstances. Hence, a total of 44 healthy male twins (11 MZ and 11 DZ pairs), 19–28 yr old, were examined for movement, position, and force sense at the elbow joint, and their heritability estimates were computed. Results showed that genetic factors explained 1) 72 and 76% of the total variance of movement sense at the start and the end of the movement, respectively, 2) 60 to 77% of the total variance of position sense, depending on the angle of elbow flexion and whether forearm positioning was active or passive, and 3) 73 and 70% of the total variance of the force sense at 90 and 60° of elbow flexion, respectively. It is concluded that proprioception assessed by these conscious sensations is to a substantial degree genetically dependent, with heritability indexes ranging from 0.60 to 0.77, depending on the task.NEW & NOTEWORTHY Proprioceptive acuity varies among people, but it is not known how much of this variability is due to differences in their genes. This study is the first to report that proprioception, expressed as movement sense, position sense, and force sense, is substantially heritable, and it is conceivable that this may have implications for motor learning and control, neural development, and neurorehabilitation.


1985 ◽  
Vol 54 (6) ◽  
pp. 1529-1540 ◽  
Author(s):  
F. J. Clark ◽  
R. C. Burgess ◽  
J. W. Chapin ◽  
W. T. Lipscomb

We studied proprioception with the ankle joint and the metacarpophalangeal (MCP) joint of the index finger of humans by use of a method that could distinguish a position sense from a movement sense. The test measured how subjects' ability to detect a fixed displacement of a joint varied with the rate of joint rotation. A position sense should not depend on the speed of joint placement; therefore slow rates of movement should not degrade subjects' ability to sense joint displacements. However, in the absence of a position sense, subjects would presumably rely on movement signals that do depend on the rate of rotation, and their ability to detect displacements should decrease when rate decreases. Subjects could sense small displacements of the ankle (+/- 3.5 degrees) and the MCP joint (+/- 2.5 degrees lateral excursions) with no decrement in performance at speeds as low as 0.25 degrees/min for the ankle and 0.5 degrees/min for the MCP joint (the slowest tested thus far). The findings confirm the existence of a position sense with these joints. Block of the ulnar nerve at the wrist, which paralyzes the interosseous muscles that adduct and abduct the MCP joint but presumably leaves skin and joint mechanisms unaffected, substantially impaired subjects' ability to detect the lateral excursions at slow speeds. Performance fell sharply at speeds less than 128 degrees/min and leveled off at approximately 20% detections at speeds less than 4 degrees/min. Increasing displacement to +/- 7 degrees did not improve performance. Block of the common peroneal nerve at the knee, which paralyzes the ankle dorsiflexor muscles, substantially impaired subjects' ability to detect the +/- 3.5 degrees displacements at slow speeds when the foot was positioned to slacken the plantarflexion muscles (which were not affected by the block). Performance fell sharply at speeds less than 256 degrees/min and approached zero at speeds less than 16 degrees/min. However, positioning the foot to stretch the plantarflexor muscles restored subjects' performance to near normal. Local anesthetic injected into the MCP joint space produced no observable effect on the ability to detect either slow or fast excursions. The joint anesthesia went unnoticed by the subject. We conclude that independent and separable senses exist for limb position and limb movement and that normal position sense requires sensory inputs from the muscles.


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