PRESSURE CONTROLS: DATA FORCES CREEPING THROUGH FINGERTIP COMMANDS
نویسندگان
چکیده
منابع مشابه
Control of fingertip forces in multidigit manipulation.
Previous studies of control of fingertip forces in skilled manipulation have focused on tasks involving two digits, typically the thumb and index finger. Here we examine control of fingertip actions in a multidigit task in which subjects lifted an object using unimanual and bimanual grasps engaging the tips of the thumb and two fingers. The grasps resembled those used when lifting a cylindrical...
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In most manipulations, we use our fingertips to apply time-varying forces to the target object in controlled directions. Here we used microneurography to assess how single tactile afferents encode the direction of fingertip forces at magnitudes, rates, and directions comparable to those arising in everyday manipulations. Using a flat stimulus surface, we applied forces to a standard site on the...
متن کاملDigit forces bias sensorimotor transformations underlying control of fingertip position
Humans are able to modulate digit forces as a function of position despite changes in digit placement that might occur from trial to trial or when changing grip type for object manipulation. Although this phenomenon is likely to rely on sensing the position of the digits relative to each other and the object, the underlying mechanisms remain unclear. To address this question, we asked subjects ...
متن کاملQuantitative assessment of dynamic control of fingertip forces after pollicization.
Dexterity after finger pollicization (reconstruction to thumb) is critical to functional outcomes. While most tests of hand function evaluate a combination of strength, coordination, and motor control, the Strength-Dexterity (S-D) paradigm focuses on the dynamic control of fingertip forces. We evaluated 10 pollicized and 5 non-pollicized hands from 8 participants ages 4-17 years (2 female, 6 ma...
متن کاملInterfacial pressure and shear sensor system for fingertip contact applications.
This Letter presents a capacitive-based sensor system for fingertip contact applications. It is capable of simultaneously measuring normal (pressure) and tangential (shear) stresses at the interface between a fingertip and external objects. This could be potentially exploitable for applications in the fields of upper limb prosthetics, robotics, hand rehabilitation and so on. The system was cali...
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ژورنال
عنوان ژورنال: AoIR Selected Papers of Internet Research
سال: 2019
ISSN: 2162-3317,2162-3317
DOI: 10.5210/spir.v2019i0.11048