Parkinson’s disease
BG gating failure: bradykinesia, rigidity, tremor.
Clinical relevance spans Parkinson’s, stroke, cerebellar ataxia, dystonia, apraxia and spinal injury — always within a broader assessment.
Educational neuroscience context only — not medical advice or diagnosis.
Conditions
Stroke (corticospinal)
Weakness, spasticity and lost fractionation.
Cerebellar ataxia
Dysmetria and timing errors from prediction loss.
Dystonia
Overflow and abnormal sensorimotor maps.
Apraxia
Skilled gesture failure despite intact strength.
Spinal cord injury
Interrupted descending drive and reflex imbalance.
Signs
Bradykinesia
Slowed initiation and scaling of movement.
Intention tremor / dysmetria
Overshoot and oscillation near targets.
Freezing of gait
Sudden failure to initiate or continue steps.
Spastic catch
Velocity-dependent resistance after upper-motor injury.
Loss of fractionated finger use
Independent digit control collapses.
Care themes
Dopaminergic / DBS care
When indicated for Parkinsonian gating failure.
Task-specific motor rehab
High-dose practice of meaningful actions.
Constraint / CIMT approaches
Drive use-dependent cortical remapping post-stroke.
Balance & gait training
Recalibrate impedance and anticipatory posture.
Seek licensed clinicians for personal symptoms; device demos are not diagnoses.
Sources & research
- Error correction, sensory prediction, and adaptation in motor controlSynthesis of prediction and adaptation in motor control.DOI
- Ethological Action Maps: A Paradigm Shift for the Motor CortexAction-map view of motor cortex organisation.DOI
- The basal ganglia: focused selection and inhibition of competing motor programsCanonical basal-ganglia selection model.DOI
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