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Displaying 1 to 16 of 16 results for movement

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  • Brown Lab

    The Brown Lab is focused on the function of the cerebral cortex in the brain, which underlies our ability to interact with our environment through sensory perception and voluntary movement. Our research takes a bottom-up approach to understanding how the circuits of this massively interconnected network of neurons are functionally organized, and how dysfunction in these circuits contributes to neurodegenerative diseases like amyotrophic lateral sclerosis and neuropsychiatric disorders, including autism and schizophrenia. By combining electrophysiological and optogenetic approaches with anatomical and genetic techniques for identifying cell populations and pathways, the Brown Lab is defining the synaptic interactions among different classes of cortical neurons and determining how long-range and local inputs are integrated within cortical circuits. In amyotrophic lateral sclerosis, corticospinal and spinal motor neurons progressively degenerate. The Brown Lab is examining how abnormal ...activity within cortical circuits contributes to the selective degeneration of corticospinal motor neurons in an effort to identify new mechanisms for treating this disease. Abnormalities in the organization of cortical circuits and synapses have been identified in genetic and anatomical studies of neuropsychiatric disease. We are interested in the impact these abnormalities have on cortical processing and their contribution to the disordered cognition typical of autism and schizophrenia. view more

    Research Areas: autism, neurodegenerative diseases, brain, electrophysiology, ALS, schizophrenia, cerebral cortex, optogenetics

    Lab Website

    Principal Investigator

    Solange Brown, M.D., Ph.D.

    Department

    Neuroscience

  • Functional Neurosurgery Laboratory

    The research goals of the Functional Neurosurgery Laboratory include the development of computational models to understand how brain function is affected by neurological conditions and how this abnormal function might be corrected or minimized by neuromodulation through electrical stimulation. The lab uses data collected from patients during epilepsy monitoring or in the operating room during DBS procedures to construct and calibrate the computational models. The models can be manipulated to explore functional changes and treatment possibilities. The other primary goal of the laboratory is the development of a neuromodulation system that applies stimulation pulses at specific phases of brain oscillatory activity. This technique is being explored in the context of Parkinson's disease as well as memory function, and may lead to less invasive therapeutic treatment system with more effective stimulation.

    Research Areas: epilepsy, movement disorders, Parkinson's disease, computational modeling, Functional neurosurgery

  • Kata Design Studio

    We started Kata to bridge the gap between professional experiential production and neuroscience, clinical neurology, and medical hardware. We strive to build experiences and technology from the ground up, with a focus on mission, and at a level that is consistent with the best productions in the industry. We mirror the thousands of hours that go into a level design in a video game, but with the crucial difference that the focus is on the subtleties required for patient treatment or wellness. Our designs require high-frequency iterative development with patients and users in countless game-play sessions in which they provide crucial feedback. Characters have been painstakingly crafted to elicit profound emotional responses. Some of the requirements for patients or the elderly population in this space are qualitatively different from what is needed in the entertainment marketplace. That said we have also understood the critical artistic similarities.

    The core ethos of Kata is that the... challenge of complex movement has profound benefits for cognition, wellness, and brain repair. Specifically, there is growing evidence that complex motor movement can have cognitive benefits that go beyond what has been reported for exercise alone. When designing experiences to treat motor impairments after stroke, maximizing rigorous and dynamic motor input is a requirement. New interactive technologies will allow people to engage in diverse and complex motor movements, even in the home, which was previously impossible.

    Overall it has been a very exciting journey, combining art, medicine, technology, and neuroscience. We continue to build, discover, and craft immersive experiences, side by side with physicians, physical therapists, and scientists, with the common goal of pushing clinical care and wellness forward. We believe this is only possible by having a mission focused design group embedded in an academic hospital. Ultimately, we wish to scale and perfect these innovations into other hospitals. Kata is a true hybrid of academia, and industry, doing what neither can do in isolation. We hope the ethos and design philosophy behind Kata provides the impetus for its expansion, partnerships, and growth.
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    Research Areas: ALS, stroke, vestibular disorders

    Lab Website

    Principal Investigator

    John Krakauer, M.A., M.D.

    Department

    Neurology

  • Kathleen Cullen Lab

    We are continually in motion. This self-motion is sensed by the vestibular system, which contributes to an impressive range of brain functions, from the most automatic reflexes to spatial perception and motor coordination. The objective of Dr. Cullen's lab's research program is to understand the mechanisms by which self-motion (vestibular) information is encoded and then integrated with signals from other modalities to ensure accurate perception and control of gaze and posture. Our studies investigate the sensorimotor transformations required for the control of movement, by tracing the coding of vestibular stimuli from peripheral afferents, to behaviorally-contingent responses in central pathways, to the readout of accurate perception and behavior. Our experimental approach is multidisciplinary and includes a combination of behavioral, neurophysiological and computational approaches in alert behaving non-human primates and mice. Funding for the laboratory has been and is provided by th...e Canadian Institutes for Health Research (CIHR), The National Institutes of Health (NIH), the National Sciences and Engineering Research Council of Canada (NSERC), FQRNT / FQRSC (Quebec). view more

    Research Areas: otolaryngology, biomedical engineering, surgery, neuroscience

  • Laboratory for Computational Motor Control

    The Laboratory for computational Motor Control studies movement control in humans, including healthy people and people with neurological diseases. We use robotics, brain stimulation and neuroimaging to study brain function. Our long-term goals are to use mathematics to understand: 1) the basic function of the motor structures of the brain including the cerebellum, the basal ganglia and the motor cortex; and 2) the relationship between how our brain controls our movements and how it controls our decisions.

    Research Areas: robotics, brain, movement, mathematics, neuroscience, decision making

  • Mahendra Damarla Lab

    Work in the Mahendra Damarla Lab focuses primarily on the field of vascular biology. Much of our research involves exploring alternatives to mechanical ventilation as a therapy for acute lung injury. We investigate mitogen-activated protein kinase-activated protein kinase 2 as a method to mediate apoptosis during lung vascular permeability by regulating movement of cleaved caspase 3. We have also conducted research on the prevalence of confirmatory tests in patients hospitalized with congestive heart failure or chronic obstructive pulmonary disease (COPD).

    Research Areas: critical care medicine, acute lung injury, lung disease, COPD, vascular biology, hypoxia

    Principal Investigator

    Mahendra Damarla, M.D.

    Department

    Medicine

  • Marvel Cognitive Neuropsychiatric Research Laboratory

    The Cognitive Neuropsychiatric Research Laboratory (CNRLab) is part of the Division of Cognitive Neuroscience within the Department of Neurology at the Johns Hopkins University School of Medicine. Its current projects include investigating the motor system's contribution to cognitive function; HIV-related neuroplasticity and attention-to-reward as predictors of real world function; and brain function and cognition in Lyme disease.

    Research Areas: HIV, neuroplasticity, movement disorders, cognitive function

    Lab Website

    Principal Investigator

    Cherie Marvel, Ph.D.

    Department

    Neurology

  • Miho Iijima Laboratory

    The Miho Iijima Laboratory works to make a further connection between cells' signaling events and directional movement. Our researchers have identified 17 new PH domain-containing proteins in addition to 10 previously known genes in the Dictyostelium cDNA and genome database. Five of these genes contain both the Dbl and the PH domains, suggesting these proteins are involved in actin polymerization. A PTEN homologue has also been identified in Dictyostelium that is highly conserved with the human gene. We are disrupting all of these genes and studying their roles in chemotaxis.

    Research Areas: cell biology, chemotaxis, genomics

    Lab Website

    Principal Investigator

    Miho Iijima, M.S., Ph.D.

    Department

    Cell Biology

  • Motion Analysis Laboratory

    Our team is focused on understanding how complex movements are normally learned and controlled, and how damage to specific brain areas impairs these processes. We employ several techniques to quantify movement including: 3-dimensional tracking and reconstruction of movement, recordings of muscle activity, force plate recordings, and calculation of joint forces and torques. These techniques allow for very precise measurements of many different types of movements including: walking, reaching, leg movements, hand movements and standing balance. All studies are designed to test specific hypotheses about the function of different brain areas, the cause of specific impairments and/or the effects of different interventions.

    Research Areas: cerebellar function, neurological diseases, motor learning

  • Neuromodulation and Advanced Therapies Center

    We investigate the brain networks and neurotransmitters involved in symptoms of movement disorders, such as Parkinson's disease, and the mechanisms by which modulating these networks through electrical stimulation affects these symptoms. We are particularly interested in the mechanisms through which neuromodulation therapies like deep brain stimulation affect non-motor brain functions, such as cognitive function and mood. We use imaging of specific neurotransmitters, such as acetylcholine and dopamine, to understand the changes in brain chemistry associated with the clinical effects of deep brain stimulation and to predict which patients are likely to have changes in non-motor symptoms following DBS. Through collaborations with our neurosurgery colleagues, we explore brain function by making recordings during DBS surgery during motor and non-motor tasks. Dr. Mills collaborates with researchers in the Department of Neurosurgery, the Division of Geriatric and Neuropsychiatry in the Depar...tment of Psychiatry and Behavioral Sciences and in the Division of Nuclear Medicine within the Department of Radiology to translate neuroimaging and neurophysiology findings into clinical applications. view more

    Research Areas: Molecular imaging of effects of deep brain stimulation on cognitive function in Parkinson's disease, Trajectories and types of cognitive impairment in Parkinson's disease, Effects of neuromodulation on impulsivity and addiction-related behaviors, Parkinson's disease, Effects of transcranial direct current stimulation on mood disorders and cognitive dysfunction in Parkinson's disease, Relationship between patient-reported and objective cognitive impairments in Parkinson's disease

    Principal Investigator

    Kelly Mills, M.D., M.H.S.

    Department

    Neurology
    Neurosurgery

  • Neuro-Vestibular and Ocular Motor Laboratory

    In our laboratory we study the brain mechanisms of eye movements and spatial orientation.

    -How magnetic stimulation through transcranial devices affects cortical brain regions
    -Neural mechanisms underlying balance, spatial orientation and eye movement
    -Mathematical models that describe the function of ocular motor systems and perception of spatial orientation
    -Short- and long-term adaptive processes underlying compensation for disease and functional recovery in patients with ocular motor, vestibular and perceptual dysfunction
    Developing and testing novel diagnostic tools, treatments, and rehabilitative strategies for patients with ocular motor, vestibular and spatial dysfunction

    Research Areas: perception of spatial orientation, ocular motor physiology

    Principal Investigator

    Amir Kheradmand, M.D.

    Department

    Neurology

  • Ocular Motor Physiology Laboratory

    Our research is directed toward how the brain controls the movements of the eyes (including eye movements induced by head motion) using studies in normal human beings, patients and experimental animals. The focus is on mechanisms underlying adaptive ocular motor control. More specifically, what are mechanisms by which the brain learns to cope with the changes associated with normal development and aging as well as the damage associated with disease and trauma? How does the brain keep its eye movement reflexes properly calibrated? Our research strategy is to make accurate, quantitative measures of eye movements in response to precisely controlled stimuli and then use the analytical techniques of the control systems engineer to interpret the findings.

    Research areas: 1) learning and compensation for vestibular disturbances that occur either within the labyrinth or more centrally within the brain, 2) the mechanisms by which the brain maintains correct alignment of the eyes to prevent d...iplopia and strabismus, and 3) the role of ocular proprioception in localizing objects in space for accurate eye-hand coordination.
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    Research Areas: diplopia, Labyrinth, eye movement, strabismus, vestibular

  • The Functional Neurosurgery Lab

    The studies of the Functional Neurosurgery Lab currently test whether neural activity related to the experimental vigilance and conditioned expectation toward pain can be described by interrelated networks in the brain. These two psychological dimensions play an important role in chronic pain syndromes, but their neuroscience is poorly understood. Our studies of spike trains and LFPs utilize an anatomically focused platform with high temporal resolution, which complements fMRI studies surveying the whole brain at lower resolution. This platform to analyze the oscillatory power of structures in the brain, and functional connections (interactions and synchrony and causal interactions) between these structures based upon signals recorded directly from the waking human brain during surgery for epilepsy and movement disorders, e.g. tremor. Our studies have demonstrated that behaviors related to vigilance and expectation are related to electrical signals from the cortex and subcortical struc...tures.

    These projects are based upon the combined expertise of Dr. Nathan Crone in recordings and clinical management of the patients studied; Dr. Anna Korzeniewska in the analyses of signals recorded from the brain; Drs. Claudia Campbell, Luana Colloca and Rick Gracely in the clinical psychology and cognitive neurology of the expectation of pain and chronic pain; Dr. Joel Greenspan in quantitative sensory testing; and Dr. Martin Lindquist in the statistical techniques. Dr. Lenz has conducted studies of this type for more than thirty years with continuous NIH funding.
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    Research Areas: neurosurgery, epilepsy, movement disorders, pain

    Lab Website

    Principal Investigator

    Fred Lenz, M.D.

    Department

    Neurosurgery

  • Udall Center for Parkinson's Disease Research

    More than ten years ago, Congress created the Morris K. Udall Centers of Excellence for Parkinson's Disease Research (Udall Centers). The primary goal of the Udall Centers is to develop new clinical treatments for Parkinson's disease. However, it is well recognized that because there is so much that we do not yet understand about the causes of Parkinson's disease, basic science is currently a key component of the overall effort to develop clinical treatments. One of the goals of the Udall Centers is to have an infrastructure in place that can efficiently facilitate a rapid translation from research to clinical when promising breakthroughs occur. Recently the Udall Center has made significant steps towards understanding the underlying mechanisms that cause Parkinson's disease and have yielded promising targets for developing treatments against the disease.

    Research Areas: movement disorders

    Lab Website

    Principal Investigator

    Ted Dawson, M.D., Ph.D.

    Department

    Neurology

  • Vestibular NeuroEngineering Lab

    Research in the Vestibular NeuroEngineering Lab (VNEL) focuses on restoring inner ear function through “bionic” electrical stimulation, inner ear gene therapy, and enhancing the central nervous system’s ability to learn ways to use sensory input from a damaged inner ear. VNEL research involves basic and applied neurophysiology, biomedical engineering, clinical investigation and population-based epidemiologic studies. We employ techniques including single-unit electrophysiologic recording; histologic examination; 3-D video-oculography and magnetic scleral search coil measurements of eye movements; microCT; micro MRI; and finite element analysis. Our research subjects include computer models, circuits, animals and humans. For more information about VNEL, click here.
    VNEL is currently recruiting subjects for two first-in-human clinical trials:
    1) The MVI Multichannel Vestibular Implant Trial involves implantation of a “bionic” inner ear stimulator intended to partially restore sensation... of head movement. Without that sensation, the brain’s image- and posture-stabilizing reflexes fail, so affected individuals suffer difficulty with blurry vision, unsteady walking, chronic dizziness, mental fogginess and a high risk of falling. Based on designs developed and tested successfully in animals over the past the past 15 years at VNEL, the system used in this trial is very similar to a cochlear implant (in fact, future versions could include cochlear electrodes for use in patients who also have hearing loss). Instead of a microphone and cochlear electrodes, it uses gyroscopes to sense head movement, and its electrodes are implanted in the vestibular labyrinth. For more information on the MVI trial, click here.
    2) The CGF166 Inner Ear Gene Therapy Trial involves inner ear injection of a genetically engineered DNA sequence intended to restore hearing and balance sensation by creating new sensory cells (called “hair cells”). Performed at VNEL with the support of Novartis and through a collaboration with the University of Kansas and Columbia University, this is the world’s first trial of inner ear gene therapy in human subjects. Individuals with severe or profound hearing loss in both ears are invited to participate. For more information on the CGF166 trial, click here.
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    Research Areas: neuroengineering, audiology, multichannel vestibular prosthesis, balance disorders, balance, vestibular, prosthetics, cochlea, vestibular implant

  • Vikram Chib Lab

    The goals of the Vikram Chib Lab are to understand how the nervous system organizes the control of movement and how incentives motivate our behaviors. To better understand neurobiological control, our researchers are seeking to understand how motivational cues drive our motor actions. We use an interdisciplinary approach that combines robotics with the fields of neuroscience and economics to examine neuroeconomics and decision making, motion and force control, haptics and motor learning, image-guided surgery and soft-tissue mechanics.

    Research Areas: soft-tissue mechanics, robotics, motor learning, neuroeconomics, movement, neurobiological control, neuroscience, image-guided surgery, economics, decision making, nervous system

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