Neurobiology of Rehabilitation
Ann N Y Acad Sci, 2004 · DOI: 10.1196/annals.1315.024 · Published: December 1, 2004
Simple Explanation
Rehabilitation aims to improve physical and cognitive impairments from neurological diseases like stroke and spinal cord injury. It uses the brain's ability to adapt after injury, called plasticity, to help patients regain function. New treatments focus on promoting this plasticity through activity and other biological strategies. The brain's sensorimotor system, which controls movement, can reorganize itself after injury. Therapy can help nearby neurons take over the functions of damaged ones. Techniques like TMS and fMRI help optimize interventions and track changes in the brain. Exercise and specific practice are essential for regaining abilities. The right intensity, duration, and feedback are important for relearning skills. Therapies such as treadmill training and constraint-induced movement therapy are used to encourage activity-dependent adaptations and brain plasticity.
Key Findings
- 1The cortex in humans contributes to reaching, grasping, individuated finger movements, and walking-related motor control.
- 2Neurons within motor areas are mutable controllers of muscles and movements, adapting based on practice.
- 3Spinal cord contains central pattern generators (CPGs) that can produce rhythmic movements independent of brain input, useful for locomotor rehabilitation.
Research Summary
Practical Implications
Enhanced Rehabilitation Strategies
Understanding neurobiology allows for developing more effective rehabilitation techniques.
Personalized Treatment Plans
Neuroimaging can guide personalized interventions based on individual brain reorganization.
Pharmacological Interventions
Medications can augment training by influencing neurotransmitters and synaptic efficacy.
Study Limitations
- 1Translation from animal models to human interventions can be challenging.
- 2Optimal parameters for exercise intensity, duration, and feedback are not fully established.
- 3The relationships between specific improvements and brain activity remain uncertain.