Justin R. Cutler

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In this paper, we address the problem of providing near-field haptic feedback in a wearable, scalable manner. Our solution, called the TactaBoard, supports the independent control of 16 outputs on a single controller board using a standard serial port. We have tested the system with several types of output devices, including low-cost pager motors and fans.(More)
This paper addresses the issue of improving the perception of contact that users make with purely virtual objects in virtual environments. Because these objects have no physical component, the user's perceptual understanding of the material properties of the object, and of the nature of the contact, is hindered, often limited solely to visual feedback. Many(More)
Naloxone failed to improve motor strength in any of 19 patients with acute stroke, even though 4 patients eventually demonstrated complete recovery. Two patients worsened, and sensory abnormalities increased in two others. Motor tone increased in eight patients. Naloxone amelioration of stroke deficits is therefore not common, and this treatment may not be(More)
We compared the diagnostic usefulness of evoked potential (EP) studies and magnetic resonance imaging (MRI) in the evaluation of 27 patients with definite or probable multiple sclerosis (MS). MRI scans demonstrated multiple lesions in 21 patients whereas EP studies showed multiple abnormalities in 14 patients (4 of whom had only somatosensory EP(More)
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