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  • Robotics
  • Akhtar is the lead author of a paper describing the sensory control module, published in Science Robotics , and the founder and CEO of PSYONIC, a startup company that develops low-cost bionic arms. (scienceblog.com)
  • mechanisms
  • However, afferent small-fiber neuropathies and centrally mediated mechanisms in PD can also disturb sensory input: Vestibular function, equilibrium, proprioception, and light and deep touch may all be affected, Dr. Weinstock said. (mdedge.com)
  • Our results suggest that tremor and dysmetria may be caused by limitations in the brain's ability to adapt sensory feedback mechanisms to compensate for increases in visual information processing time, as well as by errors in compensatory adaptations of internal estimates of arm dynamics. (biomedcentral.com)
  • signals
  • We tested whether changing accuracy demands for simple pointing movements leads humans to adjust the feedback control laws that map sensory signals from the moving hand to motor commands. (jneurosci.org)
  • Li and Todorov, 2007 ) determine how different sensory signals influence online control of movements. (jneurosci.org)
  • The first factor acts via its influence on state estimation-noisy feedback signals should contribute less to online control than reliable ones because they have less influence on internal state estimates. (jneurosci.org)
  • controller
  • The controller monitors the feedback the patient is experiencing and automatically adjusts the current level so that the user feels steady feedback, even when sweating or when the electrodes are 75 percent peeled off. (scienceblog.com)
  • electrodes
  • In addition, sweat can disrupt the connection between electrodes and skin, causing the user to feel less or no feedback. (wrm-t.com)
  • patients
  • NEW YORK - Sending sensory feedback upstream to patients with Parkinson's disease (PD) may offer a low-risk, nonpharmaceutical method to retain and improve motor function. (mdedge.com)
  • Patients with PD and sensory or autonomic dysfunction may find these disturbances contributing to motor dysfunction, said Dr. Weinstock, who treats patients with PD and a variety of complex medical conditions in his private practice. (mdedge.com)
  • The long-term goal of this research will be to determine the optimal window of stress and then ultimately prevent skin breakdown and amputation through real-time feedback and warnings to patients. (sbir.gov)
  • electrode
  • Alternately, sweat can impede the connection between the electrode and the skin, so that the user feels less or even no feedback at all. (scienceblog.com)
  • increases
  • When lungs and their vagal innervation are retained, respiratory activity is modulated by lung mechanoreceptor feedback: transient lung inflation triggered off inspiratory onset (phasic inflation) shortens inspiration and increases respiratory frequency. (jneurosci.org)
  • model
  • We use the model both with and without sensory modulation and four different combinations of ipsilateral and contralateral coupling between the limb-CPGs. (epfl.ch)
  • transmit
  • A data collection unit (DCU), located within the shoe, will collect, analyze, and store the data, and transmit information to the patient feedback unit (FBU) via a radio frequency (RF) link. (sbir.gov)
  • study
  • However, there have been many problems with giving users reliable feedback, said aerospace engineering professor Timothy Bretl, the principal investigator of the study. (scienceblog.com)
  • The clinical study Orthosens will evaluate the efficacy and safety of the Sensory Feedback Ortheses. (clinicaltrials.gov)
  • electrical
  • The group is working on miniaturizing the module that provides the electrical feedback, so that it fits inside a prosthetic arm rather than attaching to the outside. (scienceblog.com)
  • For example, it can be mechanical (the negative feedback of Watt's flyball governor in a steam engine), optical (the positive feedback of the optical resonator in a laser), and electrical. (thefreedictionary.com)