Tag: "electrodes" at medical news
Miniature implanted devices could treat epilepsy, glaucoma
.... The system will record neural signals relayed by electrodes
in various points in the brain, said Pedro Irazoqu...s battery are to be implanted below the scalp, the electrodes
that pick up data will be inserted directly in the brain through holes in the skull and then connect...
Electrical implant steadies balance disorder in animals
... balance information to the brain through multiple electrodes
connected to the vestibular nerve. The device, w... are connected to a microprocessor and up to eight electrodes
surgically implanted in the inner ear and separately connected to nerve endings. Each electrode can...
Electric fields have potential as a cancer treatment
...d to recur in all cases. Fitting the patients with electrodes
that applied 200 kHz electric fields to the scalp at regular intervals for up to 18 hours per day, the researchers observed that the brain tumors progressed to advanced stages much slower than usual (taking a median time of 26 weeks), and sometimes e...
New device for stroke patients improves walking
...ient's foot is in the air or on the ground, and electrodes
transmit painless electrical stimulation to the peroneal nerve to activate the calf muscle and correct their gait. Offered on an inpatient and outpatient basis, the NESS L300 has been shown to improve walking coordination, speed and blood flow, an...
Meditation may fine-tune control over attention
...d the task, their brain activity was recorded with electrodes
placed on the scalp. In some cases, two target numbers appeared in the series less than one-half second apart - close enough to fall within the typical attentional blink window. The research group found that three months of rigorous training in Vi...
Study finds role of mid-brain in integrating heart and respiratory response to exercise
...corded from humans who have deep brain stimulating electrodes
chronically implanted is directly related to changes in heart rate (HR), arterial blood pressure (ABP) and pulmonary ventilation (VE) when they are altered by anticipation of exercise and actual exercise. They sought to establish whether the subcorti...
Revolutionizing prosthetics 2009 team delivers first DARPA limb prototype
...asure muscle activity at the source verses surface electrodes
on the skin that were used during testing of the first prototype. The IMES devices, coupled with TMR procedures, promise to increase the fidelity of control and can be used in certain injury scenarios to provide a significant improvement on their ...
Reading Shakespeare has dramatic effect on human brain
... from Shakespeare's plays. In this initial test electrodes
were placed on the subject's scalp to measure brain responses. Professor Roberts said: "EEG gives graph-like measurements and when the brain reads a sentence that does not make semantic sense it registers what we call a N400 effect a negative wav...
Sleep problems -- real and perceived -- get in the way of alcoholism recovery
... the U-M General Clinical Research Center, wearing electrodes
on their head and body that measured their brain waves during sleep, as well as their breathing, muscle activity and heart rhythm. The detailed measurements, which together make up a procedure called polysomnography, allowed the researchers to determ...
Synchronous neuronal firing may underlie Parkinson's disease
...on that is disabled in Parkinson's disease. Using electrodes
finer than a human hair implanted into individual neurons, the researchers could monitor signals passed among neurons in the treated mice. They found the overall level of activity of the neurons in the motor cortex did not change. Instead, the neuron...
Large subset of learning disabled children can be quickly identified by new diagnostic device
...deo. At Kraus' lab, researchers place non-invasive electrodes
on a child's scalp and an earpiece that delivers carefully crafted acoustic sounds in one ear. As the child watches a movie, researchers measure the brain's responses to the acoustic sounds. Once identified as part of the subset of learning disable...
Tipsheet: Focus on gait training, pain relief, pressure ulcers and hearing aid training
...ulation (CES) sends microcurrents to the brain via electrodes
clipped to the ears. CES can effectively treat spinal, head, dental, and muscle pain and control conditions associated with pain (anxiety, depression, insomnia, and stress). We studied how daily 1-hour active CES or sham CES treatment for 21 days aff...
Dopamine imbalances cause sleep disorders in animal models of Parkinson's disease and schizophrenia
...ng (also known as rapid eye movement sleep). Using electrodes
finer than a human hair implanted into individual neurons, the researchers could monitor signals passed among hundreds of neurons in the treated mice. They found a lack of dopamine completely suppressed brain activity and behaviors associated with qu...
New treatments for epilepsy may benefit patients at University of Virginia
... scalp and connected to insulated wires with small electrodes
at the end. These leads are implanted in the patient's brain or on the brain surface near where seizures are believed to start. When a seizure is detected by the RNS, a brief, mild electrical shock is delivered to suppress it. "Until now, drugs hav...
MIT device could prevent epileptic seizures
...he detector works by measuring brain activity with electrodes
placed on the patient's scalp. In its current form...wears something resembling a bathing cap, in which electrodes
are embedded. In order to adapt the detector to work with the VNS, researchers connected wires from ...
Nanowire arrays can detect signals along individual neurons
...ng technologies are relatively crude: Micropipette electrodes
poked into cells are invasive and harmful, and microfabricated electrode arrays are too bulky to detect activity at the level of individual axons and dendrites, the neuronal projections responsible for electrical signal propagation and inter-neuron c...
Mapping the neural landscape of hunger
...agues implanted bundles of infinitesimal recording electrodes
in areas of rat brain known to be involved in feeding, motivation, and behavior. Those areas include the lateral hypothalamus, orbitofrontal cortex, insular cortex, and amygdala. The researchers then recorded neuronal activity in those regions throug...
Placebo study frames depression treatment puzzle
...n. Measurements are performed by placing recording electrodes
on the scalp. The electrodes
connect to the body through conductive paste or gel. It does not hurt and involves no radioactivity....
UCLA develops unique nerve-stimulation epilepsy treatment
...y a role in seizure inhibition. The stimulator and electrodes
used to transmit an electrical current to the nerv...ulator were passed under clothing and connected to electrodes
attached to the face by adhesive. The electrodes
could be covered by a cap or hat. In addition, wh...
Neurologists with expertise in brain stimulation therapy help Parkinson's patients
...n is a surgical procedure that involves implanting electrodes
into the brain to electronically stimulate areas that control movement, treating Parkinson's disease symptoms such as tremor, stiffness and problems walking. It is the most effective surgical treatment for advanced cases of Parkinson's disease. Dee...
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