Breaking News
December 17, 2018 - Stealth BioTherapeutics Granted Fast Track Designation for Elamipretide for the Treatment of Dry Age-Related Macular Degeneration with Geographic Atrophy
December 17, 2018 - Studies reveal role of red meat in gut bacteria, heart disease development
December 17, 2018 - Eisai enters into agreement with Eurofarma for its anti-obesity agent lorcaserin
December 17, 2018 - Researchers use brain connectome to reassess neuroimaging findings of Alzheimer’s disease
December 17, 2018 - “Miracle” baby survives Ebola in Congo and rapid a new Ebola detection device
December 17, 2018 - Study finds misuse of benzodiazepines to be highest among young adults
December 17, 2018 - TGen receives PayPal grant to underwrite costs of genetic tests for children with rare disorders
December 17, 2018 - New research highlights why HIV-infected patients suffer higher rates of cancer
December 17, 2018 - Antibiotic-resistant bacteria could soon be targeted with Alzheimer’s drug
December 17, 2018 - Rutgers scientists take an important step in making diseased hearts heal themselves
December 17, 2018 - Tailored Feedback at CRC Screen Improves Lifestyle Behaviors
December 17, 2018 - Loss of two genes drives a deadly form of colorectal cancer, reveals a potential treatment
December 17, 2018 - How the Mediterranean Diet Can Help Women’s Hearts
December 17, 2018 - Sustained connections associated with symptoms of autism
December 17, 2018 - Concussion rates among young football players were higher than previously reported
December 17, 2018 - Cresco Labs granted approval to operate marijuana dispensary in Ohio
December 17, 2018 - Study provides insight into health risks facing new mothers
December 17, 2018 - AMSBIO expands Wnt signaling pathway product range to aid research
December 16, 2018 - Surgical treatment unnecessary for many prostate cancer patients
December 16, 2018 - Excess weight responsible for cancers globally finds report
December 16, 2018 - Regular sex associated with greater enjoyment of life in seniors
December 16, 2018 - Social stigma contributes to poor mental health in the autistic community
December 16, 2018 - Multidisciplinary team successfully performs complex surgery on patient suffering from enlarged skull
December 16, 2018 - Experts analyze data that can guide antidepressant discontinuation
December 16, 2018 - Menlo Therapeutics’ Successful Phase 2 Clinical Trial of Serlopitant Demonstrates Reduction of Pruritus Associated with Psoriasis
December 16, 2018 - Siblings of children with autism or ADHD are at elevated risk for both disorders
December 16, 2018 - New project aims to understand why and how metabolic disorders develop in patients
December 16, 2018 - Diets containing GM maize have no harmful effects on health or metabolism of rats
December 16, 2018 - Are doctors and teachers confusing immaturity and attention deficit?
December 16, 2018 - Hearing loss linked with increased risk for premature death
December 16, 2018 - Chromatrap buffer reagents for lysing cells offer many benefits
December 16, 2018 - Young Breast Cancer Patients Face Higher Risk for Osteoporosis
December 16, 2018 - 3-D printing offers helping hand to people with arthritis
December 16, 2018 - Community Health Choice helps manage complex and chronic care conditions
December 16, 2018 - Regular trips out could dramatically reduce depression in older age
December 16, 2018 - CWRU to use VivaLNK’s Vital Scout device for stress study in student athletes
December 16, 2018 - ‘Easy Way Out’? Stigma May Keep Many From Weight Loss Surgery
December 16, 2018 - Gout drug may protect against chronic kidney disease
December 16, 2018 - Talking about memories enhances the wellbeing of older and younger people
December 16, 2018 - Occupational exposure to pesticides increases risk for cardiovascular disease among Latinos
December 16, 2018 - A biomarker in the brain’s circulation system may be Alzheimer’s earliest warning
December 16, 2018 - Magnesium may play important role in optimizing vitamin D levels, study shows
December 16, 2018 - The effect of probiotics on intestinal flora of premature babies
December 16, 2018 - Parents spend more time talking with kids about mechanics of using mobile devices
December 16, 2018 - Biohaven Announces Positive Results from Ongoing Rimegepant Long-Term Safety Study
December 16, 2018 - Arterial stiffness may predict dementia risk
December 16, 2018 - Study explores link between work stress and increased cancer risk
December 16, 2018 - Sex work criminalization linked to incidences of violence finds study
December 16, 2018 - Johns Hopkins researchers discover swarming behavior in fish-dwelling parasite
December 16, 2018 - Schistosomiasis prevention and treatment could help control HIV
December 16, 2018 - Early postpartum opioids linked with persistent usage
December 16, 2018 - Johns Hopkins researchers identify molecular causes of necrotizing enterocolitis in preemies
December 16, 2018 - Advanced illumination expands capabilities of light-sheet microscopy
December 16, 2018 - Alzheimer’s could possibly be spread via contaminated neurosurgery
December 16, 2018 - Unraveling the complexity of cancer biology can prompt new avenues for drug development
December 16, 2018 - Inflammatory Bowel Disease, Prostate Cancer Linked
December 16, 2018 - Cannabis youth prevention strategy should target mental wellbeing
December 15, 2018 - Recent developments and challenges in hMAT inhibitors
December 15, 2018 - Sewage bacteria found lurking in Hudson River sediments
December 15, 2018 - CDC selects UMass Amherst biostatistician model that helps predict influenza outbreaks
December 15, 2018 - Researchers reveal brain mechanism that drives itch-evoked scratching behavior
December 15, 2018 - New computer model helps predict course of the disease in prostate cancer patients
December 15, 2018 - Obesity to Blame for Almost 1 in 25 Cancers Worldwide
December 15, 2018 - How the brain tells you to scratch that itch
December 15, 2018 - New findings could help develop new immunotherapies against cancer
December 15, 2018 - World’s largest AI-powered medical research network launched by OWKIN
December 15, 2018 - Young people suffering chronic pain battle isolation and stigma as they struggle to forge their identities
December 15, 2018 - Lifespan extension at low temperatures depends on individual’s genes, study shows
December 15, 2018 - New ingestible capsule can be controlled using Bluetooth wireless technology
December 15, 2018 - Researchers uncover microRNAs involved in the control of social behavior
December 15, 2018 - Research offers hope for patients with serious bone marrow cancer
December 15, 2018 - Link between poverty and obesity is only about 30 years old, study shows
December 15, 2018 - Mass spectrometry throws light on old case of intentional heavy metal poisoning
December 15, 2018 - BeyondSpring Announces Phase 3 Study 105 of its Lead Asset Plinabulin for Chemotherapy-Induced Neutropenia Meets Primary Endpoint at Interim Analysis
December 15, 2018 - Study finds that in treating obesity, one size does not fit all
December 15, 2018 - Tenacity and flexibility help maintain psychological well-being, mobility in older people
December 15, 2018 - Study reveals role of brain mechanism in memory recall
December 15, 2018 - High levels of oxygen encourage the brain to remain in deep, restorative sleep
December 15, 2018 - Experimental HIV vaccine strategy works in non-human primates, research shows
December 15, 2018 - Genetically modified pigs could limit replication of classical swine fever virus, study shows
MoreGrasp project shows significant results in field of thought-controlled grasp neuroprosthetics

MoreGrasp project shows significant results in field of thought-controlled grasp neuroprosthetics

image_pdfDownload PDFimage_print

Getting a better grip on things: The MoreGrasp Horizon2020 research project under the leadership of TU Graz is coming to an end with significant results in the field of thought-controlled grasp neuroprosthetics. A large-scale feasibility study is underway.

The beginning of the MoreGrasp project was marked by the idea of a groundbreaking further development of grasp neuroprosthetics activated by thought control. The aim was to develop a sensoric grasp neuroprosthesis to support the daily life activities of people living with severe to completely impaired hand function due to spinal cord injuries. The motor function of the neuroprosthesis was to be intuitively controlled by means of a brain-computer interface with emphasis on natural motor patterns. After the three-year project period came to an end, the breakthrough was reported by the members of the project consortium led by Gernot Müller-Putz, head of the Institute of Neural Engineering at TU Graz, which include the University of Heidelberg, the University of Glasgow, the two companies Medel Medizinische Elektronik and Bitbrain as well as the Know Center.

Paradigm shift: actually thought movement as signal

Gernot Müller-Putz explains brain-computer interfaces as follows: ‘In tetraplegia all the circuits in the brain and muscles in the body parts concerned are still intact, but the neurological connection between the brain and limb is interrupted. We bypass this by communicating via a computer which in turn passes on the command to the muscles.’ The muscles are controlled and encouraged to move by electrodes that are attached to the outside of the arm and can, for example, trigger the closing and opening of the fingers. Previously, the researchers worked with arbitrary mental concepts. The important thing was the sufficient distinguishability of the produced brainwaves to control the neuroprosthesis. For instance, if the participant thought about raising and lowering their foot and the signal measured by the EEG opened the right hand, the subject then – for instance – would think of a movement of the left hand and the right hand would close again.

The MoreGrasp consortium developed this technique further – in particular the TU Graz research team – in the recently concluded project and created the paradigm shift. This mental ‘detour’ of any movement pattern so long as it is clearly distinguishable is no longer necessary, as Müller-Putz explains: ‘We now use so-called “attempted movement”.’ In doing so, the test subject attempts to carry out the movement – for instance, tries to grasp a glass of water. Due to the tetraplegia, the occurring brain signal is not passed on but can be measured by means of an EEG and processed by the computer system. Müller-Putz is extremely pleased with the success of the research: ‘We are now working with signals which only differ from each other very slightly, and nevertheless we manage to control the neuroprosthesis successfully. For users, this results in a completely new possibility of making movement sequences easier – especially during training. A variety of grips were investigated in the project: the palmar grasp (cylinder grasp, as for grasping a glass), the lateral grasp (key grasp, as for picking up a spoon), and opening the hand and turning it inwards and outwards.

Large-scale study

End users can register on the special online platform – for linking up persons who are interested or affected – to enter the large-scale feasibility study which is intended to check compatibility in everyday life of the technique developed in the study. Participants eligible for the study will be tested according to a complex procedure. Afterwards, each test person will be provided with a tailor-made BCI training course which must be completed independently in sessions lasting several hours each week. In this way brain signals will be gathered and the system itself will learn during each experiment.

Source:

https://www.tugraz.at/en/tu-graz/services/news-stories/tu-graz-news/singleview/article/moregrasp-wenn-das-leben-wieder-greifbar-wird/

Tagged with:

About author

Related Articles