In this paper we investigated a novel tactile sensation imaging method using a flexible, transparent waveguide and the total internal reflection principle. The developed sensor is used to detect and identify inclusions within tissues. To test the performance of the proposed sensor, a realistic tissue phantom with hard inclusions (tumor models) is developed. The proposed tactile imaging sensor e...

Phantom Limb Pain (PLP) is an excruciating type of pain that gives a sensation of the continued presence of an amputated limb. Physicians have used many methods and drugs to treat PLP. We present a case of continued sciatic nerve block performed for PLP that developed after a traumatic amputation. We conclude that infusing a local anesthetic via a perineural sciatic catheter effectively treated...

While phantom limb pain is a well-recognized phenomenon, clinical experience has suggested that the augmentation of phantom limb pain with visceral stimulation is an issue for many military personnel with amputation (visceral stimulation being the sensation of the bowel or bladder either filling or evacuating). However, the prevalence of this phenomenon is not known. The aim of this study was t...

Previous studies have indicated that amputation or deafferentation of a limb induces functional changes in sensory (S1) and motor (M1) cortices, related to phantom limb pain. However, the extent of cortical reorganization after lower limb amputation in patients with nonpainful phantom phenomena remains uncertain. In this study, we combined functional magnetic resonance (fMRI) and diffusion tens...

Background Electrical stimulation is increasingly relevant in a variety of medical treatments. In this study, surface electrical stimulation was evaluated as a method to non-invasively target a neural function, specifically natural sensation in the distal limbs. Method Electrodes were placed over the median and ulnar nerves at the elbow and the common peroneal and lateral sural cutaneous nerv...

aim and background: personality traits are among the factors affecting the tendency to substance abuse. personality evaluations have shown sensation seeking to be a particularly strong predictor of initial substance abuse across a variety of drug use categories. the aim of this study was to determine levels of sensation seeking in addicted and normal subjects while considering gender. methods a...

This paper introduces the development of a tactile device using a shape-memory alloy, and describes the information transmission by the higher psychological perception such as the phantom sensation and the apparent movement of the tactility. The authors paid attention to the characteristic of a shape-memory alloy formed into a thread, which changes its length according to its body temperature, ...

PURPOSE The aim of this study was to compare the effective dose for imaging of mandible between multi-detector computed tomography (MDCT) and cone-beam computed tomography (CBCT). An MDCT with low dose technique was also compared with them. MATERIALS AND METHODS Thermoluminescent dosimeter (TLD) chips were placed at 25 organ sites of an anthropomorphic phantom. The mandible of the phantom was...