View clinical trials related to Parkinson Disease.
Filter by:The purpose of this study is to provide proof-of-concept that directional stimulation and directional recording, in an intraoperative setting, is perceivable in a subject. The tests will be performed using a dedicated intraoperative lead connected to an external neuro-recorder/stimulator, during a deep brain stimulation implantation surgery.
The ideomotor theory of action control is considered to be central to the understanding of human voluntary action. According to the ideomotor theory, an action is represented in terms of its desired sensory effects and actions are selected by internally activating these effect representations. Recent imagery and behavioral studies showed that this anticipated representation of action-effects triggered a "sensory attenuation", meaning a decrease of perceptive performances or a decrease of sensory event-related potentials (ERP) for an expected event. Thus, the sensory attenuation constitutes a relevant behavioral tool to investigate sensory anticipation impairment in patients with Parkinson's disease. In a behavioral paradigm, patients and matched control participants have to perform a perceptive task on predicted visual action-effects mixed with mispredicted visual action effects. Performances should be better in mispredicted visual action effects for control participants only.
The purpose of the study is to learn about the impact of exercise on fatigue, anxiety, and depression in Parkinson's disease. It is well established that exercise improves the motor symptoms of Parkinson's disease. However, it is not clear which types of exercise are most beneficial for specific non-motor symptoms.
This study seeks to evaluate the long-term safety and effectiveness of nelotanserin for the treatment of visual hallucinations (VHs) and Rapid Eye Movement (REM) Sleep Behavior Disorder (RBD) in subjects with Lewy body dementia (LBD).
The purpose of this study is to evaluate the efficacy, safety and tolerability of PF-06649751 in Parkinson's disease patients at early stage of the disease.
Memory for action is especially important in everyday life although current literature is not very abundant. The enactment effect (i.e. better memory for performed actions than for verbally encoded sentences) is usually described as a robust effect in aging and can be found in many diseases. Although the enactment effect has been studied for three decades, there is still no consensus on how it enhances memory. Therefore, in order to gain additional insight into the representational basis of the enactment effect, in the present study, the investigators propose to test neurological patients. The investigators suggested that memory for action should be better than memory for verbally encoded information in Alzheimer's disease and Parkinson's disease. If patients with Alzheimer's disease (AD) and Parkinson's disease (PD) have no cognitive assessment during the last 6 months, then they will realize different tests: MMSE (1), HAD (2), a cognitive assessment (3); (4); BREF (5); Assessment of apraxia, (6). Controls will perform the same tests to verify that they have no cognitive impairment. Then, two experimental conditions will be presented in all patients and controls: a first in which participants will have to name drawings (verbal learning) and a second in which they will have to reproduce an action associated with drawings (action learning). Immediately after this learning phase, a recognition task will be available and therefore participants will have to recognize drawings that had been presented previously. The main criteria used in the statistical analysis will be the correct recognition score.
Deep brain stimulation (DBS) is an established treatment for advanced complicated Parkinson's disease (PD). Several controlled randomized studies have given proof of an advantage for operated patients as compared to medically treated patients in terms of motor outcome, activities of daily living and health status. However these studies have addressed mostly stimulation of the subthalamic nucleus (STN). GPi stimulation has not been compared to best medical treatment (BMT) in a prospective randomized controlled trial in patients with complicated PD who are not good candidates for STN stimulation. The investigators aim assessing GPi-DBS in patients with PD who have contraindications for STN-DBS.
The objective of this study is to assess the origins of lateral postural inclination presented by some Parkinson disease's patients. Several mechanisms could cause lateral postural inclination. Available data allow to suggest three hypothesis: (troubles of tonus, perception of vertical perturbation, trouble of perception of corporal axis
Impact of unilateral modulation of deep brain stimulation of the subthalamic nucleus on freezing of gait in Parkinson's disease
Parkinson's disease is not only a pathology of movements. There are many non-motor symptoms that complicate and impair patients' quality of life. Among those disorders are sleep disorders. Insomnia is the most frequent symptom. Most patients report 2-5 awakenings per night and long periods of awakening which occupy 30 to 40% of their night. Apomorphine is a dopamine agonist that may be administered with a pump . The objective of the study is to assess changes in the quality of sleep in Parkinson's disease patients treated with an apomorphine pump.