A new circuit model provides an explanation for how deep brain stimulation (DBS) relieves Parkinson's disease motor symptoms by interrupting a vicious cycle between the subthalamic nucleus and the striatum. The model suggests that DBS restores a balance with other rhythm frequencies, enabling better movement control.
Researchers developed a new method of deep brain stimulation driven by motor cortical activity to treat Parkinson's disease. This approach, known as adaptive DBS (aDBS), uses γ2 band activity from the primary motor cortex to modulate stimulation parameters and reduce battery consumption.
Researchers developed personalised brain models to simulate patient response to deep brain stimulation for depression, improving efficacy by 50%. The models use individual EEG and MRI data to replicate brain response and pave the way for tailored treatment approaches.
Dystonia is characterized by involuntary movements and postures, limiting daily activities. A new study maps specific brain networks for treatment success in patients with cervical and generalized dystonia. The findings reveal distinct stimulation sites depending on the type of dystonia, offering a more targeted approach to improving t...
A new MRI probe can monitor individual populations of neurons and reveal how they interact with each other. The technique uses genetically targeted probes to detect neural activity and provide a more precise picture of brain function.
A new study from the University of Copenhagen has made significant breakthroughs in treating Parkinson's disease by targeting specific neurons in the brainstem. By stimulating excitatory neurons in the caudal area of the pedunculopontine nucleus, researchers were able to restore normal walking function in mice with Parkinson's symptoms.
Salk researchers have engineered mammalian cells to be activated using ultrasound, a method that paves the way toward non-invasive versions of deep brain stimulation, pacemakers, and insulin pumps. The team found a protein called TRPA1, known for its role in responding to noxious compounds, which also opens in response to ultrasound.
A team of researchers from Charité – Universitätsmedizin Berlin has identified a neural network that generates tics, which could lead to improved treatment of people with Tourette syndrome. The study found that targeting this network via deep brain stimulation can alleviate symptoms in patients.
A team of researchers has recorded electrical signals in the human brain associated with ebbs and flows in OCD symptoms over an extended period. The study could lead to an emerging therapy called deep brain stimulation that adjusts to everyday changes in OCD symptoms, potentially providing more relief and fewer side effects for patients.
A NIH-funded study sheds light on the potential of long-term, at-home deep brain stimulation as a treatment for OCD. Researchers are using brain recordings from patients to identify neural signatures and related behaviors that predict symptom onset.
A new web-based application can predict which epilepsy patients will not benefit from stereo-electroencephalography (SEEG), a costly and invasive procedure. The '5-SENSE' score reliably identifies patients who will not have a focal seizure onset zone, allowing clinicians to avoid unnecessary procedures.
Research reveals brief DBS exposure triggers significant brain state changes and sustained antidepressant response. A decrease in beta power is identified as a novel biomarker for DBS treatment optimization.
A first-in-human study at Cleveland Clinic found that targeting the dentate nucleus with deep brain stimulation was safe and feasible for promoting post-stroke rehabilitation, enabling significant functional improvement in upper extremity hemiparesis. The study's adaptive design allowed for extended treatment duration if patients conti...
Researchers at Carnegie Mellon University have found a way to make deep brain stimulation (DBS) more precise, resulting in therapeutic effects that outlast what is currently available. The new protocol uses short bursts of electrical stimulation to target specific neuronal subpopulations, providing longer-lasting benefits.
Researchers at The Graduate Center, CUNY, found that increased signaling of the sonic hedgehog protein can inhibit LID in animal models of Parkinson's disease. This could lead to a potential therapeutic solution for most Parkinson's patients.
Researchers found significant improvement in motor symptoms and reduction in medications 15 years after deep brain stimulation for Parkinson's disease patients. The study also showed a reduction in dyskinesia and 'off state' episodes, improving quality of life.
Researchers at UCSF Weill Institute for Neurosciences developed novel neurostimulation devices that monitor brain activity for months, pairing brain recordings with wearable monitors of movement. They identified patterns of brain activity corresponding to specific movement abnormalities associated with Parkinson's disease and demonstra...
Researchers have made breakthroughs in deep brain stimulation, a therapeutic treatment for Parkinson's disease. Electrical stimulation at higher frequencies can successfully recalibrate dysfunctional circuits causing movement symptoms.
Researchers have developed a new brain stimulation technique that can predict individual responses to treatment, paving the way for personalized therapies. The technique uses machine-learning models to analyze brain activity across multiple regions and adjust stimulation doses in real-time.
Researchers at Charité - Universitätsmedizin Berlin have identified a specific nerve bundle as the optimal target for deep brain stimulation in obsessive-compulsive disorder. The study's findings may improve treatment outcomes for patients with severe OCD, which affects over 2% of people worldwide.
A new study published in Neurology suggests that deep brain stimulation for Parkinson's disease does not significantly increase the risk of developing dementia. Researchers found that factors such as age, hallucinations, and cerebral hemorrhage during surgery were associated with a higher risk of dementia.
Researchers at Duke University have successfully treated motor dysfunction in an animal model of Parkinson's disease using light-based deep brain stimulation. The technique, which targets specific neurons, shows promise for tailoring therapies to individual patients and improving treatment outcomes.
Researchers identified nine cases of people who lost their ability to swim after receiving deep brain stimulation for Parkinson's disease. The study highlights the potential risk of drowning and emphasizes the need for supervised assessment before engaging in deep water activities.
Researchers found deep brain stimulation to be safe and effective in reducing the severity of tinnitus in patients with no other confounding comorbidity. The procedure showed significant clinical improvement in three out of five patients, with improvements in Tinnitus Functional Index scores and Tinnitus Handicap Inventory scores.
Researchers suggest that bi-directional electrodes can both stimulate and record from deep brain structures, enabling closed-loop DBS for movement and psychiatric disorders. This technology could expand treatment possibilities beyond Parkinson's disease.
A recent study published in Neuropsychopharmacology found that deep brain stimulation provided significant reduction in depression severity and improved quality of life for patients with treatment-resistant depression. The therapy showed excellent results over one year, with most patients experiencing relief within days.
A new study suggests that deep brain stimulation boosts the number and strength of mitochondria in brain cells, which may help reduce Parkinson's symptoms. The treatment, used for late-stage Parkinson's disease, involves surgically implanting thin wires into the brain to deliver small electric pulses.
Deep brain stimulation (DBS) of the ventral capsule (VC) or anteromedial subthalamic nucleus (amSTN) reduced OCD symptoms to a similar extent, but produced distinct effects on specific symptoms. VC stimulation improved mood, while amSTN stimulation improved cognitive flexibility.
Researchers at Wake Forest Baptist Health will investigate deep brain stimulation as a potential therapeutic approach for Alzheimer's disease, building on previous studies that showed significant improvements in cognitive function in young nonhuman primates. The five-year study aims to determine if DBS can improve memory and counteract...
Researchers found that deep brain stimulation affects different neural pathways for motor and cognitive functions. The treatment shows improved effects on motor control and fewer adverse cognitive effects.
A new, fully implanted deep brain stimulation device uses real-time brain signals to fine-tune its signaling, reducing side effects and improving symptom control in Parkinson's patients. The adaptive system was shown to be equally effective as traditional stimulation methods in initial short-term studies.
Researchers studied Parkinson's patients with deep brain stimulation and found that brain activity alternates between the left and right sides of the brain while stepping. The introduction of a metronome improved accuracy and enhanced beta activity.
A new case report warns of the potential danger of lightning strikes to patients with deep brain stimulators. The authors suggest precautions such as using surge protectors, charging devices first before plugging in, and strictly following manufacturer instructions to minimize risk.
Researchers have made strides in medical imaging, computer modeling, and control strategies to optimize Deep Brain Stimulation (DBS) therapy in individual patients. The review highlights the interactive nature of factors influencing DBS effects and paves the way for truly patient-specific optimization.
Scientists from NUS and international research team create a novel method for deep brain stimulation, utilizing upconversion nanoparticles to deliver visible light deep into the brain. The innovation enables researchers to uncover valuable insights about brain functions with less invasive methods.
A study of 171 patients with uncontrolled Tourette syndrome found that deep brain stimulation resulted in a 45% improvement in tic severity one year after treatment. However, the procedure was associated with adverse events such as dysarthria and paresthesias in 35.4% of patients.
A study of over 1,200 Veterans with Parkinson's disease found that those receiving deep brain stimulation (DBS) lived an average of 6.3 years after surgery, compared to 5.7 years for non-DBS patients. This modest survival advantage was attributed to improved quality of life and better symptom control.
New brain stimulation techniques offer safer, targeted means to study brain function, improve memory, and treat neurological and psychiatric disorders. These advancements have the potential to reach areas deeper in the brain, deliver customized stimulation, and study diseases in new ways.
Researchers found that intermittent electrical stimulation improved working memory in adult non-human primates, whereas continuous deep brain stimulation impaired memory. The study suggests that increased acetylcholine levels and blood flow may contribute to the benefits of intermittent stimulation.
Researchers have discovered that correct connections between brain regions are essential for optimal relief of Parkinson's Disease symptoms using deep brain stimulation. By analyzing brain connectivity, they were able to predict the best possible outcome and optimize electrode placement.
MIT researchers create temporally interfering (TI) stimulation, a new technique that stimulates neurons in the brain without implants. This method uses low-frequency electrical signals to target specific areas of the brain, offering new possibilities for brain research and potential treatments for conditions like Parkinson's disease.
Researchers have developed a noninvasive method for deep brain stimulation using electrodes placed on the scalp, which could make the treatment less risky, less expensive, and more accessible. The approach has shown promising results in treating Parkinson's disease and other conditions, with no harmful effects detected.
Researchers at Carnegie Mellon University have identified two groups of neurons that can be targeted with optogenetics to alleviate Parkinson's disease symptoms. By activating these cells, they were able to restore movement for at least four hours, significantly longer than current treatments.
Researchers at SISSA discovered that weight gain after deep brain stimulation is associated with an increased desire for food and level of impulsiveness. The study also found a link between the duration of Parkinson's disease and reduced pharmacological treatment, highlighting potential preventative measures.
A surgical technique has been shown to decrease the severity of tics in young adults with severe Tourette syndrome by an average of 50%. The study, published in Journal of Neurosurgery, adds evidence supporting deep brain stimulation as a safe and effective treatment for severe cases.
A long-term study found that deep brain stimulation provided lasting improvements in symptoms for seven out of eight patients with previously non-treatable depression. The therapy remained effective over four years without significant side effects.
Duke University researchers have developed a new approach to deep brain stimulation that reduces energy consumption by up to 75% without compromising treatment efficacy. The algorithm uses computational evolution to design tailored patterns for individual patients, leading to improved symptoms and reduced battery replacement procedures.
A recent study published in Neuron found that deep brain stimulation did not improve memory performance, with a range of impairment from 5% to 20%. However, the researchers suggest that a different stimulation protocol may be necessary to boost memory.
Researchers developed a method to measure how the brain responds to electrical stimulation, allowing for more effective deep brain stimulation treatment. This patient-specific approach uses phase response curves to predict and optimize stimulus patterns, potentially improving efficacy and reducing side effects.
A large-scale trial of deep brain stimulation for treatment-resistant depression found no significant reduction in symptoms. The study's results challenge the use of this therapy for depression, but experts suggest alternative approaches may be beneficial.
Researchers at the University of Washington are using an investigational Medtronic device to develop a new deep brain stimulation system for treating essential tremor. The system aims to increase battery life, reduce side effects, and allow patients to adjust their stimulation voluntarily.
A new study published in Neurology found that low-frequency deep brain stimulation at 60Hz significantly improves swallowing dysfunction and freezing of gait in Parkinson's patients. This treatment is more effective than standard high-frequency DBS at alleviating these symptoms, which can lead to disability and mortality.
A systematic review supports the use of deep brain stimulation (DBS) for patients with obsessive-compulsive disorder (OCD) who don't respond to other treatments. Bilateral DBS techniques are recommended for carefully selected patients, improving OCD symptoms by around 30 percent.
A recent study analyzing data from over 1,700 patients found that the complication risk of deep brain stimulation (DBS) is similar for both older and younger Parkinson disease patients. The results suggest that age should no longer be a rigid exclusion criterion for DBS candidates.
Researchers at Duke Medicine report that implanting deep brain stimulation devices poses no greater risk of complications to older patients with Parkinson's disease. In a study analyzing over 1,750 patients, the team found that increasing age did not significantly affect overall complication rates.
Researchers discovered reduced dimensions of key cerebral veins after deep brain stimulation in Parkinson's disease patients. This finding suggests that bilateral subthalamic nucleus stimulation affects cerebral venous blood flow.
Patients with Parkinson's disease struggle to recognize emotions in facial expressions and speech prosody. After surgery for deep brain stimulation, they show difficulty recognizing disgust and sadness, but this impairment is only temporary.
The study involved 23 people with deep brain stimulators and 21 without stimulators, who completed driving tests in a simulator. Those with stimulators performed better on driving tests, especially when the device was turned on.
A review of subthalamic nucleus deep brain stimulation effects on Parkinson's disease patients reveals that while it improves motor features, social maladjustment and certain aspects of quality of life can be negatively impacted. Effective strategies are needed to mitigate these adverse effects and improve patients' overall well-being.
A University of Houston researcher has won a $330,000 NSF grant to develop signal-processing techniques that interpret electrical activity recorded by deep brain stimulation probes. This technology aims to provide real-time feedback to neurosurgeons, allowing them to guide probe placement and perform surgeries faster and more accurately.