Clinical Trials About "Brain motor signals sharpen sound perception research suggests" RSS

20:53 EST 19th February 2018 | BioPortfolio

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Showing "Brain motor signals sharpen sound perception research suggests" Clinical Trials 1–25 of 16,000+

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Microgrid II - Electrocorticography Signals for Human Hand Prosthetics

Neurologic disease with loss of motor function is a major health burden. Brain-computer interfaces (BCI) are systems that use brain signals to power an external device, such as a communication board or a prosthetic device, which may help people with loss of motor function. Electrocorticography (ECoG) has been used to decode hand movements and as a control signal for brain-computer interface (BCI). This study hopes to use a smaller spacing of ECoG to see if a better motor signal...


Sensorimotor Maps of Vowel Perception and Production

Speech develops through a co-structuring of auditory and motor representations, especially in the first years of life during language acquisition. In the present study, we will test by means of functional magnetic resonance imaging whether vowel perception and production might depend on a coordination of auditory and motor, articulatory, cortical maps. The outcome of this study will lead to a better understanding of whether both vowel perception and production are processed in ...

Sensory-motor Interactions in the Perception of Vowels: a Study in Repetition - Suppression

The aim of our study is to show by fMRI the involvement of the motor system in the perception of speech, and more particularly how this implication is modulated by the degree of prototypicity of the stimuli.

Self-motion Perception in Parkinson's Disease

Parkinson's Disease as well as being a disorder of motor function also causes a wide range of non-motor disturbances many of which are involved in the prodromal stage prior to the onset of motor symptoms. Abnormal perception in the visual and in other domains is increasingly being recognized. Control of the movement of our bodies in space involves perception of self-motion which is dependent on the processing and integration of multimodality information from the kinesthetic, pr...

Novel Brain Signal Feedback Paradigm to Enhance Motor Learning After Stroke

Stroke (795,000/year in the US and 30 million existing stroke survivors in the world) damages brain neural structures that control coordinated upper limb movement. To most effectively target the brain damage, interventions should be directed so as to restore brain control serving coordination of peripheral neuromuscular function. Currently, there is a lack of a transformative intervention strategy, and only limited efficacy is seen in response to neural rehabilitation that is o...

NeuroCognitive Communicator: Safety Study

Individuals suffering from tetraplegia as a result of cervical spinal cord injury, brainstem stroke, or amyotrophic lateral sclerosis (ALS) cannot independently perform tasks of daily living. In many cases, these conditions do not have effective therapies and the only intervention is the provision of assistive devices to increase independence and quality of life. However, currently available devices suffer from usability issues and are limiting for both the patient and caregive...

Phase Out in Tinnitus Patients

Phase shift treatment is a new tinnitus therapy that aims at sound cancelling via complete or partial residual inhibition. This technique is based on the theory by Choy advocating that the induction of a sound wave with a 180 degree phase shift compared to the sound experienced by the patient could result in sound cancelling, likely by negation of the cortical perception of tinnitus. The aim is to determine the efficacy of the Phase Out treatment in pure tone and narrow band ...

Subjective Perception of Motor Control During Psychogenic Disorders

The aim of this study is to reveal neurobiological bases of the motor control of conscious perception, thanks to new techniques of functional cerebral imaging (MRI), and potentials deteriorations connected to neuropsychiatric disorders like conversion disorder. The Hospital University Center of Grenoble will provide patients from Neurology department, characterized with non psychogenic epileptic seizures and abnormal psychogenic movements, from conversive origin. Subjec...

Data-Driven Characterization of Neuronal Markers During Deep Brain Stimulation for Patients With Parkinson's Disease

Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has developed into a standard therapy in the refractory stage of Parkinson's disease (PD). Implanted micro- and macroelectrodes can be used to derive neural signals from the basal ganglia (BG). Cortical signals can be obtained by measurements of the electroencephalogram (EEG) or the electrocorticogram (ECoG). Both signal types can be used to characterize the motor system of the patient and make it possible to estimat...

Feasibility of Home-Based Neurofeedback to Treat Chemotherapy-Induced Peripheral Neuropathy

The goal of this clinical research study is to learn if using neurofeedback training can help teach patients with peripheral neuropathy (nerve damage that affects motor function) how to change their own brain waves to lower their own perception of symptoms and help improve overall quality of life. Neurofeedback training is a type of therapy that uses an electroencephalograph (EEG) and a computer software program to measure brain wave activity. This is an investigational...

Randomized Clinical Trial of Phonological Interventions

Recent research reveals genetic and symptomatic overlap among children with speech sound disorders (i.e., those who (misarticulate more sounds than would be expected for their age) and children with dyslexia (i.e., those who struggle to learn to read). Children who have speech sound disorders as preschoolers are at risk for the later emergence of dyslexia, a risk that often reveals itself in the form of poor phonological awareness skills during the preschool period. Traditional...

Identification of Time-invariant EEG Signals for Brain-Computer Interface

This study aims to identify various time-variant and time-invariant components of EEG signals using advanced signal processing techniques, such as machine learning. Our ultimate goal is to develop universal or customised brain-computer interface that are stable across days or even years.

Use of Navigated Transcranial Magnetic Stimulation (nTMS) in Generated Motor and Language Mapping to Evaluate Brain Recovery Following Surgery

The goal of this clinical research study is to learn about using Navigated Transcranial Magnetic Stimulation (nTMS) in patients having surgery to remove a brain tumor in areas of the brain that control movement (motor function) and/or speech. nTMS is a system designed to map the brain's function relating to movement and speech.

Mirror Therapy Efficacy in Upper Limb Rehabilitation Early After Stroke

This study evaluates the effects of mirror therapy on upper-limb motor impairment in stroke patients early after their cerebrovascular accident. In recent years mirror therapy has been used in stroke rehabilitation, both to ease motor (e.g., upper limb impairment) and cognitive (e.g., spatial neglect) recovery. To note, mirror therapy is a simple and inexpensive treatment that patients can practice independently and with no significant side effects. However, a recent review con...

Efficacy of Treatment for Tinnitus

Tinnitus is the acoustic perception of sound without any physical source. It is estimated that 15-21% of adults develop a Tinnitus, which can cause serious distress and debilitation in all aspects of daily life of the affected. There is currently no evidence for a successful treatment of tinnitus. While one treatment approach involves sound-based therapies, e.g. tinnitus retraining therapy. The treatment aspect in our setting involved cognitive behavioural therapy.

Nitrous Oxide Treatment for Tinnitus

Tinnitus is perception of sound without the presence of an external acoustic stimulus. Approximately 50 million Americans experience chronic tinnitus and of these, 10 million have bothersome tinnitus. The tinnitus research literature suggests that NMDA receptor antagonists may prove to be useful in reducing tinnitus. Nitrous oxide, a member of the NMDA receptor antagonist class, is a widely-used general anesthetic and sedative with a proven safety profile. The investigators hyp...

Lapatinib in Combination With Radiation Therapy in Patients With Brain Metastases From HER2-Positive Breast Cancer

The purpose of this research study is to determine the safety of combining lapatinib plus radiation in patients with breast cancer that has spread to the brain. Depending upon the participants cancer, they may also have stereotactic radiosurgery (SRS). Lapatinib s a compound that may stop cancer cells from growing abnormally. It is thought that lapatinib might also make cancer cells more sensitive to radiation. This drug has been used in other research studies in women with...

Tinnitus Retraining Therapy Trial

The primary purpose of the Tinnitus Retraining Therapy Trial (TRTT) is to assess the efficacy of tinnitus retraining therapy (TRT) as a treatment for severe debilitating tinnitus. TRT is a non-medical intervention that uses directive counseling (DC) and sound therapy (ST)to habituate the patient's associated negative emotional reactions to tinnitus, its perception, and ultimately, its impact on the patient's life.

Have a Good Grasp of the Worldthe World

Brief Summary: In schizophrenia, dislocation of psychic functions involving a loss of contact with reality is frequently found. A fragmentation of motor and sensory perceptions could be held responsible. However, automatic integration between perception and action is the necessary condition to be in "relationship with the world." Affordance is the experimental link between object perception and potentially associated actions (Gibson, 1977, 1979) explored by Stimulus Response Co...

Motor Learning in People With Cerebral Palsy by Using Virtual Reality.

Cerebral Palsy (CP) is a group of permanent disorders that affect movement and posture due to a non-progressive lesion in the immature brain occurring in fetal brain development or in infancy. These disorders are often associated with changes in sensation, learning, body perception, communication and behavior. People with CP present variable difficulties in muscle action. With increasing access to computer-aided accessibility, rehabilitation programs have increasingly used virt...

Repetitive Transcranial Magnetic Stimulation (rTMS) for Tinnitus

Tinnitus is a phantom auditory perception of meaningless sound, meaning that there is registration of sound in the absence of an external or internal acoustic stimulus. It is a common problem (prevalence 7-19%) which may interfere with the ability to lead a normal life. Unfortunately, it is a very difficult symptom to treat because there are hardly any therapeutic options for the cause of tinnitus. Most therapies focus on alleviating the condition rather than treating the cause...

Brain Machine Interface (BMI) in Subjects Living With Quadriplegia

In this study, investigators will show proof-of-concept that brain signals can be used in real-time, closed-loop mode to trigger stimulation for hand function. Subjects will undergo surgery to implant a unilateral subdural strip electrode (Resume II, Model 3587A) over the motor cortex. These electrodes implanted in the brain will enable bioelectrical data recording (sensing) from the brain to the implanted Activa PC+S. The cortical sensing data will be 1. either proces...

Perception of Temporal Regularity in Tactile Stimulation: a Diffuse Correlation Spectroscopy Study in Preterm Neonates

A key function of our brain is to identify temporal structures in the environment and use them to form expectations. These expectations allow us to plan and organize our behavior towards changes in the environment, and optimize the use of our attentional and motor resources. They also allow us to establish harmonious social interactions, coordinating us with our interlocutor during an exchange. Our ability to form temporal expectations seems to emerge very early but the develop...

Tinnitus Related Cerebral Activities

The proposed research is to identify the brain areas activated or deactivated by tinnitus in humans. The identification of these areas is expected to be able to treat tinnitus refractory to traditional therapies by methods of brain stimulation. Furthermore, this technique would be very useful to verify the effectiveness of any treatment to relieve tinnitus. The brain activation measured during fMRI will be performed in a position of rest, after inhibition of tinnitus, an...

A Spinal Functional Magnetic Resonance Imagine (fMRI) Study of Resting-State, Motor Task and Acupoint Stimulation

The spinal cord is a very important part of the central nervous system. fMRI can be applied to observe functional status of the human spinal cord. Under different conditions, the investigators will see different types of fMRI signals within the spinal cord. In resting state, the investigators might see active/inactive signals, too.

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