Articles tagged with Hands
Researchers created the world's most realistic model of the human hand's musculoskeletal system using MRI and visual effects techniques. This breakthrough has implications for computer graphics, prosthetics, medical education, robotics, and virtual reality.
A study by Bielefeld University and New York University reveals that healthy adults systematically misattribute touch on the hands to the feet and vice versa. The researchers found that three characteristics of touch - limb identity, side of body, and canonical anatomical position - contribute to phantom sensations.
Researchers at Carnegie Mellon University have developed a smartwatch that can recognize 25 different hand activities, including typing on a keyboard, washing dishes, and petting a dog, with around 95% accuracy. The device uses accelerometer data to detect hand motions and bio-acoustic sounds associated with these activities.
A three-year study will evaluate the efficacy of MyoPro to improve upper extremity motor function and activities of daily living in individuals with incomplete SCI. The study aims to provide data needed to expand rehabilitation options for veterans and lay the foundation for home-based strategies for improved recovery.
A modified push-up exercise called 'push-up plus' strengthens the serratus anterior muscle, which connects the rib cage to the shoulder blade. This study found that different hand positions and orientations activated various muscle groups, making it an effective exercise for athletes and individuals with specific needs.
Researchers will analyze factors making hands unique to develop new biometric capabilities for security access and border control. An active, open-source dataset of over 5,000 participant images will be created to address variable image conditions.
New research from Western University reveals that the spinal cord plays a crucial role in processing and controlling complex functions like hand positioning, challenging previous beliefs about its limitations. The study demonstrates that the spinal cord can generate responses to bumps, enabling precise hand control.
A new artificial joint, developed by Chalmers University of Technology, has restored important wrist-like movements to forearm amputees. The joint works with an osseointegrated implant system, allowing for much more naturalistic movements and intuitive control without sacrificing useful biological actuators.
A UChicago research team will collaborate with Pitt to develop robotic arms patients can control with their minds, receiving sensory feedback from attached prosthetic hands. The project aims to create a prosthesis with the same dexterity and functionality as the natural human hand.
The discovery of Bannykus and Xiyunykus provides significant insights into the evolution of alvarezsaurs, an enigmatic group of theropod dinosaurs. The fossils reveal transitional steps in their adaptation to new diets, showing that these dinosaurs evolved short arms only later in their evolutionary history.
Young-Jun Son and his students at the University of Arizona have received awards from the Institute of Industrial and Systems Engineers (IISE) for their research on disaster management and hand gesture task recognition. Their work aims to predict human behavior in social networks during emergencies and develop a simulation model to sup...
Researchers at Johns Hopkins University have developed an electronic 'skin' called e-dermis that recreates a sense of touch through prosthetic fingertips. The device enables amputees to perceive sensations such as pain and sharpness, improving prosthetic limb functionality.
Researchers found that individuals living at high altitude have shorter lower arm segments but relatively similar upper arm and hand lengths compared to those living at low altitudes. This suggests the human body prioritizes energy allocation for growth, particularly in essential areas like manual dexterity.
Researchers found that expert poker players maximize information without revealing too much themselves, using public and private information sources to inform their wagering behavior. The study, published in Cognitive Science, offers insights into strategic uncertainty and information processing complexity.
Researchers mapped the brain of a blind woman who can see moving objects but not stationary ones due to Riddoch syndrome. Her brain takes detours around damaged pathways to bypass the visual system.
Researchers developed a user-generic musculoskeletal model that translates neuromuscular signals into commands for prosthetic devices. The technology has shown promising results in early testing with able-bodied and amputee volunteers, potentially paving the way for more intuitive and reliable prosthetic control.
Researchers have discovered a key mechanism enabling stroke survivors to lift affected arms by tapping into 'backup' motor systems, bypassing damaged regions. This adaptive strategy involves involuntary activation of the elbow flexor muscles, which can be harnessed for improved movement control.
Research conducted by the University of Exeter and University of Strathclyde found that people with prosthetic arms are less affected by the size-weight illusion. The study compared perception in amputees using prosthetics with those using their natural hands, finding a significant difference in illusion strength.
The Famula project has created a system that learns to recognize everyday objects through trial and error, mimicking human learning. The robot's language capabilities are also being developed to improve its interactions with humans.
A new study found that sign language users' speed of comprehension depends on their conversation partners' handedness, with left-handers responding better to fellow left-handers and right-handers to right-handers. The research suggests that how signers produce their own signs plays a role in understanding others' signing.
Researchers found that brain regions for missing body parts are repurposed in congenital one-handers, suggesting a new understanding of brain organization based on function rather than body part. This discovery reveals remarkable brain plasticity and holds potential for developing prosthetic limbs.
Researchers at Newcastle University found that malicious websites and installed apps can crack four-digit PINs with a 70% accuracy using smartphone sensor data. The study revealed that people are unaware of the risks, and despite industry awareness, no solution has been found yet.
A man with quadriplegia has regained arm movements using a brain-computer interface and functional electrical stimulation system. The technology allowed him to perform simple functions like grasping and eating, marking a significant milestone in the restoration of motor function for individuals with paralysis.
Researchers used TMS to study brain activity while participants comprehended words related to hand movements. The results suggest that language areas work together with motor cortex regions to form distributed meaning representations.
Researchers found that chimpanzees copy their mothers' grooming styles, including high-arm grooming, which is not closely associated with group identity or social relationships. The study suggests a strong maternal influence on chimp behavior, with young chimps learning the behavior from their mothers and continuing it into adulthood.
A study by researchers at Osaka University and the University of Cambridge found that a 'reorganisation' of the brain's wiring causes phantom limb pain in amputees. They developed an AI-based treatment using brain-machine interfaces to decrease pain levels.
Researchers have developed a system that enables amputees to feel a range of intensity levels on their prosthetic hands, allowing them to hold objects, operate machinery, and interact with others. The system uses electrical stimulation to mimic natural touch, decoding the intensity of pressure in the nervous system.
A researcher at the University of Arizona has created a computer-aided surgical trainer that provides haptic guidance and augmented reality images to train surgeons in laparoscopic procedures. The device is designed to improve hand-eye coordination and reduce complications, ultimately leading to better surgical outcomes.
A team of researchers from Université de Genève and EPFL found that the HOX13 architect proteins play a crucial role in the formation of both arms and hands. The study reveals how a genetic switch allows for a clear boundary between these two developmental processes.
Scientists develop SkinHaptics technology that sends ultrasound waves through the hand to create targeted tactile sensations on the palm. This innovation solves a major challenge for wearable devices by allowing users to feel what they are doing without interrupting the display.
Researchers at Oxford University found that transcranial direct current stimulation (tDCS) significantly improved motor skills in stroke patients. The study showed that tDCS reinforced training, leading to greater recovery and increased brain activity in relevant areas.
A new study found that combining peripheral nerve stimulation with constraint-based therapy enhances recovery of movement in the affected arm and hand, even after one year after a stroke. The technique takes advantage of the brain's neuroplasticity to reorganize or 'rewire' itself after injury.
Researchers have investigated high-frequency repetitive sensory stimulation as a therapeutic approach for Complex Regional Pain Syndrome (CRPS) patients. The study showed significant improvement in tactile performance after stimulation, with individual patients reporting substantial pain relief.
Researchers are developing a healing glove that delivers medicine to injured hands and speeds up healing, allowing for earlier rehabilitation. The REHEAL Glove provides positive pressure wound therapy, delivering therapeutics and controlling the wound environment for better and faster healing.
New Michigan State University research reveals tablets can help seniors overcome barriers to getting connected online. The use of tablets makes it easier for older adults to maneuver and access information without the need for a mouse.
Researchers at Stanford University have created a robotic wing that can recover from mid-air collisions using a passive morphing mechanism inspired by bird wings. The mechanism allows the wing to fold and unfold without actuation, making it lighter and more reliable.
A team of researchers from the University of Pittsburgh School of Medicine aims to create a prosthetic limb that not only moves like a natural one but also feels like it. By integrating sensory technologies, they hope to improve users' dexterous control and intuition when interacting with the device.
Researchers are finalizing contract negotiations for a $4.4 million grant to speed development of a mobile system amputees can use anywhere, enabling them to touch and feel things out in the community. The team aims to have a product people can take home and use daily within five years.
A paralysed woman, Jan Scheuermann, has controlled a robotic arm using complex hand movements, achieving 10-dimensional control. This breakthrough enables her to interact with objects in different ways, simulating human-like hand use.
Researchers aim to improve stroke therapies by studying brain networks linked to movement, particularly hand and arm control. They will use techniques like fMRI and transcranial magnetic stimulation to map brain activity and stimulate specific regions.
Researchers are working on bionic arms with full motor and sensory function to treat veterans with upper extremity amputations. While advancements have been made, challenges remain in creating prostheses that meet the abilities of a human arm and hand.
Researchers programmed a robot to use eye gaze as a nonverbal cue, making handovers more fluid. People reached out to take an object sooner in scenarios where the robot used head movements or made eye contact.
A new study published in Mayo Clinic Proceedings found that physicians' stethoscopes are more contaminated than the palms of their hands with bacteria such as MRSA. The researchers discovered that the stethoscope's diaphragm and tube were heavily contaminated, emphasizing the need for frequent disinfection after each use.
A collaboration between PETA, Simulab, and trauma surgeons is providing state-of-the-art TraumaMan surgical simulators to nine countries, replacing animal testing for medical training. This initiative is expected to save thousands of animals from being hurt and killed in training procedures.
A study published in Springer's journal found that a long-proboscid fly can suck up almost all nectar available in a flower in one go due to more efficient suction pumps in its head. This allows the insect to gain an advantage over other flies with average-sized mouth parts.
A small study presented at American Heart Association's Scientific Sessions 2013 found that virtual reality hands controlled by stroke survivors' thoughts can help them recover use of their arms and hands. Patients achieved 81% accuracy in using the virtual hands to reach out, improving skills in just three experimental sessions.
A study of British auction markets found that buyers on behalf of abattoirs preferred purchasing larger animals with maximum meat yield, excluding ponies. The research did not support the claim that the horse meat industry targets pet ponies for slaughter.
Researchers at MIT have developed an array that precisely tracks motor vibrations through the skin, enabling better localization and perception of tactile stimuli. This innovation could lead to wearable GPS-linked devices providing tactile guidance for navigation and direction.
Healthcare providers prefer robotic assistants for tasks such as housework and reminding patients when to take medication. However, they prefer human assistants for activities requiring direct physical interactions, like bathing and feeding.
Researchers developed a prototype glove that uses vibration feedback to guide users' hands towards target objects, improving search performance by up to three times. The solution enables practical applications such as warehouse navigation and pedestrian guidance.
Researchers aim to develop 'Mobile Manipulating UAVs' with dexterous limbs for near-ground tasks like infrastructure repair and border inspection. The team's goal is to create stable and interactive systems that can assist in emergency response scenarios without destabilizing the aircraft.
Researchers at Brown University have made significant advances in brain-computer interfaces, allowing people with paralysis to control robotic arms in three-dimensional space. Participants were able to perform tasks such as reaching for foam targets, picking up objects, and even serving themselves coffee using only their brain signals.
A study presented at the American Heart Association's 2012 Scientific Sessions found that cooling the palms of the hands during exercise improved exercise tolerance and cardiovascular fitness in obese women. Holding a cold bottle or using a cooling device may help exercisers work out longer and stick with their regimen.
Researchers found that the brain decodes left or right hand without mental gymnastics, using processes called binding to bind seen and felt hands. The study's results have implications for understanding experiences of amputees and sensory processing.
A new study by University of Zurich researchers found that brain areas responsible for the left hand adapt to compensate for an immobile right arm. The study suggests using the undamaged arm to strengthen the affected one through therapy, offering a potential treatment approach for stroke patients.
A study using the rubber hand illusion found that people with schizophrenia have a weakened sense of body ownership. This suggests that movement therapy could be helpful for these individuals, particularly those who experience out-of-body experiences. The findings also support the idea that exercise may reduce symptoms of schizophrenia.
In a groundbreaking study, monkeys trained at Duke University Center for Neuroengineering learned to control a virtual avatar hand and identify textures of virtual objects solely with their brain activity. This technology has the potential to restore tactile sensation and mobility to quadriplegic patients.
Infants use 'statistical learning' to predict future events and find boundaries between movements. This skill is crucial for learning words, and researchers believe it begins as early as 7-9 months old.
Scientists at the University of Southampton have developed three new technologies to aid in stroke rehabilitation. The 'tactile' devices mimic everyday sensations, such as holding a hot cup of tea, to help patients regain movement in their arms and hands.
New research from the University of Bristol's Centre for Communications Research investigates how smartphone grips impact wireless signal strength. Holding a device can lead to a 100-fold reduction in sensitivity and signal fluctuations, impairing service quality.