Articles tagged with Fingers
Researchers at EPFL and University of Geneva uncover a genetic mechanism that modulates gene activity through seven enhancers, leading to diversity in finger shapes. This discovery could help understand hereditary malformations and evolutionary variations in the animal kingdom.
Scientists have developed an electrochemical sensor device that measures blood sugar levels from tears, potentially saving 350 million diabetes patients from finger-prick blood tests. The device tracks tear glucose levels, which correlate with blood glucose levels, allowing for multiple daily measurements without pain.
Researchers at Carnegie Mellon University have developed TapSense technology that can differentiate between various parts of a finger when tapped on a touchscreen. This technology allows for richer touch interactions, such as customizing typing and painting apps, and even enables collaboration with different materials and tools.
Researchers at Microsoft Research and Carnegie Mellon University developed OmniTouch technology, a wearable projection system that turns any surface into a graphical, interactive surface. The device employs a depth-sensing camera to track users' fingers, allowing for tap, drag, and gesture-based interactions.
Researchers discover that six-month-old babies recall the existence of objects even when hidden from view, but not their details. This discovery sheds light on how young brains process object information.
Biologists found that male and female digit proportions are determined by the balance of sex hormones during early embryonic development. The study provides a genetic explanation for links between finger proportions and traits such as sperm counts, aggression, and health problems like autism and breast cancer.
Researchers have solved the debate on which bird digits exist, finding that precursor cells in pb can form a thumb despite pa cells dying off during development. The study, published in Nature, reveals new insights into embryonic development and vertebrate evolution.
Researchers developed a glove with vibrating fingertip that enhances tactile sensitivity and motor performance. The device showed statistically significant improvements in various sensory and motor skill tasks, including texture discrimination, two-point discrimination, and grasp tests.
Scientists have identified a rare genetic mutation that underlies adermatoglyphia, a condition characterized by the complete absence of fingerprints. The study provides valuable insight into the genetics of fingerprint formation and highlights the usefulness of rare genetic mutations in understanding human biology.
Researchers discovered that moles' extra 'thumb' develops from a single bone that forms later than the real fingers. This adaptation allows for increased digging efficiency.
Researchers develop two new techniques that apply heat mapping and heat distribution to enable machines to perceive three-dimensional objects. These methods mimic the human ability to recognize objects regardless of their shape or orientation.
Researchers found that computer simulations and cutting-edge techniques used by the film industry can restore lost hand and arm function in stroke victims. The study showed significant improvements in patients who played Plasma Pong, Hammer Task, Virtual Piano, and Hummingbird Hunt games.
A new study reveals that deaf people in Nicaragua who developed their own 'homesigns' language lack a complete understanding of numbers greater than three. The research suggests that language plays a vital role in learning mathematical concepts, including the value of large numbers.
A new species of parrot-sized dinosaur, Linhenykus monodactylus, has been discovered in Inner Mongolia with only one finger. The fossil found preserved bones from the vertebral column, forelimb, and hind limbs. It is believed that this feature may have been used for digging into insect nests.
A recent study suggests that baby-led weaning, where babies feed themselves solid foods, is a feasible approach for most infants. However, it could pose nutritional risks for those who develop at a slower pace. The research recommends combining self-feeding with traditional spoon feeding to ensure balanced nutrition.
Men with longer index fingers are at a lower risk of developing prostate cancer, while those with shorter index fingers are more likely to be diagnosed. The study found that men aged under 60 were 87% less likely to have prostate cancer if their index finger was longer than their ring finger.
Researchers discovered that muscle cells in developing fly embryos send 'finger-like' protrusions into neighboring cells to facilitate fusion. The actin-rich fingers help form a small pore connecting the two cell types, eventually fusing them together.
Researchers at Concordia University discovered a link between the length of the second and fourth fingers and risk-taking behavior in men. The study found that alpha males with shorter ratios were more likely to engage in recreational, social, and financial risk-taking.
Researchers used fossil finger ratios to estimate the social behavior of early humans and their extinct relatives. The study found that Neanderthals and early members of the human species had lower finger ratios, indicating high levels of prenatal androgens and competitiveness.
Researchers found a tight coupling between intention and action in skilled typists, suggesting conscious control is not an illusion. Typists' fingers slowed down only when they made errors, regardless of whether the error was corrected or not.
Research from Vanderbilt University found that expert typists' hands can detect errors even when their conscious brain is unaware of them. In experiments, skilled typists were fooled by computer programs inserting or correcting errors, but their fingers slowed down only after making real mistakes.
A new study found that framing tasks involving self-control as 'fun' rather than an obligation increases regulatory success. Participants who perceived the task as enjoyable exerted more self-control and consumed less candy compared to those who saw it as a chore.
A literature review confirms that hand therapy addresses key factors in hand injury recovery, including swelling control, wound management, range of motion, strengthening of the hand, and work conditioning. Finding a qualified therapist is essential for optimal outcomes.
The Lancet Middle East website offers region-specific content and news for healthcare professionals in the Middle East. The site provides handpicked articles, research, and medical news relevant to the region, enabling users to stay up-to-date with medical research as it unfolds.
New research reveals that having a lucky token can enhance performance by improving confidence. Volunteers who brought a lucky charm did better in memory games and set higher goals for themselves. Wishing someone good luck also improved success at tasks requiring manual dexterity.
Researchers at Harvard University have developed programmable matter by folding, allowing a single sheet to transform into a boat- or plane-shape. The technology uses origami techniques and features smart cups that can adjust to liquid levels and other tools with multiple functions.
Researchers found that brain's representation of hands is out of sync with reality, with fingers perceived as shorter and hands fatter. The findings may be relevant to psychiatric conditions involving body image.
A NJIT engineer is developing innovative robotic and virtual reality-based video game therapies to aid stroke patients in regaining hand and arm function. Preliminary results show promising 20-28% positive changes in motor function following therapy.
Researchers have developed a non-invasive test for cardiovascular disease using VENDYS, a device that monitors finger temperature to measure an individual's risk. The test, which takes 15 minutes, can help identify vascular health issues and provide valuable feedback on progress.
A Carnegie Mellon student has created a technology called Skinput, which uses bio-acoustic sensors and machine learning to enable touchless control of smartphones and other mobile devices. The system can classify inputs with high accuracy, even when using different body parts.
Researchers at Rutgers University developed a modified PlayStation 3-based system to improve hand functions in teenagers with cerebral palsy. The system improved participants' abilities to perform daily activities such as brushing teeth and dressing.
Scientists studied primate finger ratios, finding a link between high prenatal androgen exposure and competitive social behavior. Great Apes showed lower androgen levels, which may explain their cooperative behavior and tolerance of males.
Researcher Elena Nicoladis found that Germans use their thumb to begin counting, while Canadians use their index finger. This variation can lead to miscommunications and misunderstandings, particularly for non-native speakers.
Researchers found Hummer owners frame themselves as moral protagonists, using American foundational myths to defend their consumption choices against critics. They believe representing a bastion against anti-American discourses earns them the moral high ground.
Researchers discovered that individuals with anhedonia, a core symptom of major depressive disorder, are less willing to make choices requiring greater effort in exchange for greater reward. This finding suggests a plausible connection between dopamine deficiency and reward processing in depression.
A DuPont-Lehigh University team has developed a DNA-based method to sort and separate specific types of carbon nanotubes (CNTs) from a mixture. The new method utilizes tailored DNA sequences that can recognize individual types of CNTs and purify them with sufficient yield for fundamental studies and application development.
A study found that maximal voluntary force produced by a finger is independent of movement speed, contradicting long-held theories. This paradoxical result has implications for human rehabilitation and robot hand design, suggesting that neuromuscular systems can be pushed to their limits even in seemingly simple tasks.
Researchers Ennos and Warman found that fingerprints do not increase friction between the skin and objects, contrary to a long-held theory. In fact, the ridges in fingerprints can reduce skin contact and even loosen grip, making them less useful for grip than previously thought.
The study found that children with autism rely on a region of the brain for conscious movement, while typically developing peers use a region for automating motor tasks. Decreased connectivity between brain regions involved in motor planning and execution was also observed.
Higher frequency vibrations cause immediate changes in peripheral vascular systems, while lower frequency vibrations can lead to long-term vascular problems. Researchers found increased oxidative stress and pro-inflammatory factors in rats exposed to higher frequencies.
Research reveals that 3-year-olds, dogs, and young children share similar social environments, leading to comparable understanding of human gestures. 3-year-olds rely on the index finger's direction to locate hidden objects, while 2-year-olds and dogs respond to protruding body parts.
A noninvasive finger sensor test is highly predictive of major cardiac events for people at low or moderate risk. The EndoPAT test measures blood flow and identifies endothelial dysfunction, a condition that can lead to atherosclerosis and cardiovascular problems.
The iPoint 3D system uses hand and finger recognition to control devices without physical contact, suitable for use in living rooms, offices, hospitals, and more. This innovative technology enables users to interact with displays and appliances using gestures only.
Researchers at Georgia Tech developed nanogenerators that convert irregular biomechanical energy into electricity, generating up to 0.5 nanoamps from a hamster's movement or finger tap.
Researchers at MIT have found an elegant solution to the mystery of gravity fingers, explaining how water forms finger-like paths as it flows through soil. The solution, which involves incorporating surface tension into mathematical models, has wide-ranging implications for science and engineering applications.
A new five-year, $1 million NIH grant will help ASU researchers determine the effects of carpal tunnel syndrome on hand dexterity. The study aims to quantify the impact of CTS on grasping and hand control, providing valuable insights into the effectiveness of surgical intervention and physical rehabilitation.
A new study finds that birds have a 'thumb' due to gene expression similar to alligators, not mice. The research rekindles the hypothesis of a developmental frameshift in the evolution of bird wings.
Researchers at Uppsala University used medical x-rays to find rudimentary fingers in the fins of Panderichthys, a transitional animal between fish and tetrapods. This discovery indicates that fingers evolved earlier than previously thought, contradicting the long-held theory that they emerged in tetrapods.
A study published in PLOS ONE found a strong link between digit length and voluntary exercise, contradicting previous research on male aggression. The findings indicate that prenatal stress hormones play a key role in shaping the desire for physical activity.
Research reveals that animals with forward-facing eyes have an advantage in dense environments, gaining X-ray vision. This allows them to visually survey a greater region around themselves, aiding in hunting and maneuverability.
Researchers at Purdue University developed a new monolithic comb drive device that can precisely move or sense movement at an atomic scale. The device has twice the dexterity of similar devices and could improve probe-based sensors for detecting viruses and biological molecules.
A team of researchers from the University of Leeds has made a breakthrough in understanding finger clubbing by identifying its link to lung cancer. The team discovered that a genetic mutation prevents the breakdown of fatty compound PGE2, leading to swollen fingers and fingernails.
Researchers at the University of Wisconsin-Madison studied embryonic chick feet to understand digit growth. They found that phalanges form from mesenchymal cells, not cartilage, and are shaped by complex signals from genes. This discovery may help explain bradydactyly conditions in humans.
A study published in Psychological Science found that our grasp reflects the real size of objects, not their apparent size, even when they appear distorted through optical illusions. This supports the two visual systems hypothesis, which suggests that our brain has two separate systems for processing images and controlling actions.
A new study from Northwestern University's Feinberg School of Medicine explores the neural mechanisms behind hunger and food cravings. The research found that when subjects were fasting, their brains responded strongly to visual cues of donuts, highlighting the brain's ability to prioritize needs in a complex environment.
Researchers found that using HEPA filters for two days significantly improved microvascular function in healthy, non-smoking elderly individuals. The study suggests that indoor air filtration could be a feasible means of reducing cardiovascular risk by removing ultrafine, fine and coarse air particles.
A USC biomedical engineer examines the intricate circuitry between hand manipulation skills and specialized neural circuits in the brain. The study found that the human nervous system employs a time-critical strategy for tapping and pushing, which is necessary for executing fine finger movements.
Researchers found a significant association between the index-to-ring finger length ratio and the risk of knee osteoarthritis. Women with a 'male' pattern of longer ring fingers were more likely to develop knee OA, while those with smaller 2D:4D ratios had a greater risk of tibiofemoral knee joint OA.
Researchers found that brain compensatory mechanisms actively contribute to recovery from spinal cord injury, enhancing function in bilateral primary motor cortex regions. This study reinforces current understanding of neurorehabilitation and may lead to new rehabilitation strategies for patients with spinal cord injuries.
Researchers at the University of Washington have developed Vocal Joystick, a device that uses voice commands to control cursor movement and other screen interactions. The technology has shown promising results in early tests, allowing experienced users to achieve similar levels of control as those using traditional interfaces.