The relation between cognitive and motor dysfunction and motor imagery ability in patients with multiple sclerosis

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Clinical Neurology

Background:

• Motor imagery (MI) shows promise for neurorehabilitation.
• MI performance can be compromised in individuals with neurological conditions.

Purpose of the Study:

• To investigate the relationship between cognitive and motor impairments and MI ability in multiple sclerosis (MS) patients.
• To compare MI performance in MS patients with healthy controls.

Main Methods:

• Thirty MS patients completed cognitive and motor screenings.
• A comprehensive test battery assessed MI ability, including questionnaires, hand rotation tasks, and mental chronometry.
• MI performance was compared between MS patients and age-matched controls, and across body sides within patients.

Main Results:

• MS patients demonstrated significantly different MI accuracy and temporal organization compared to controls.
• MI accuracy in MS patients was associated with cognitive dysfunction but not motor deficits.
• MI duration varied between the more and less affected sides of the body in MS patients.

Conclusions:

• Cognitive function significantly impacts motor imagery ability in multiple sclerosis.
• Motor function does not appear to directly affect motor imagery performance in MS.
• Understanding these relationships is crucial for tailoring MI-based neurorehabilitation strategies for MS patients.