Brain Excitability and Connectivity in Sensory-motor Pathways in ALS
- Conditions
- Amyotrophic Lateral Sclerosis
- Registration Number
- NCT03694132
- Lead Sponsor
- Institut National de la Santé Et de la Recherche Médicale, France
- Brief Summary
The main objective is to determine the origin of somatosensory alteration in patients with ALS and to evaluate its impact on brain activity by coupling different imaging modalities and indirect electrophysiology.
The secondary objective is to evaluate whether the observed functional changes in MEG / EEG and functional MRI correlate with structural lesions revealed with diffusion MRI (anatomo-functional connectivity of the brain).
- Detailed Description
Somatosensory evoked potentials (SEPs) produced by ulnar nerve electrical stimulation will be collected with combined MEG and EGG.
Functional MRI will be performed during electrical stimulation of ulnar nerve and during mechanical vibration of ADM tendon.
Brain diffusion MRI will be performed. Anatomical MRI will be done for source location. Brain resting state activity will be recorded with MEG/EEG and fMRI.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 52
- ALS, MRC score ≥ 4 at least in one hand
- Controls: no history of neurological disorders, right-handed
- contraindication to MRI
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Primary Outcome Measures
Name Time Method Brain activity 1 hour Brain parametric maps
- Secondary Outcome Measures
Name Time Method Brain connectivity 15 min diffusion brain MRI (tractography)
Trial Locations
- Locations (1)
Hopital Pitie-Salpetriere
🇫🇷Paris, France
Hopital Pitie-Salpetriere🇫🇷Paris, France