PathoSchema® Immersive Experience
Multiple Sclerosis
A mechanism-first simulator: normal saltatory conduction, immune misdirection, demyelination, lesion geography, investigation reasoning, management mechanisms, and mastery-level clinical judgement.
Physiology
The insulation is the speed.
In healthy white matter, oligodendrocytes wrap central axons with myelin. Electrical signalling then jumps between nodes of Ranvier instead of crawling along the full membrane. The result is fast, synchronised communication between brain, optic nerve, and spinal cord.
The axon behaves like a premium insulated cable: signal energy is conserved between exposed nodes.
Ion channels cluster at nodes, regenerating the impulse in crisp jumps.
Vision, coordination, cognition and bladder control depend on timing, not just signal presence.
Pathophysiology
The luxury cable room analogy: protected cables, breached security, stripped insulation.
The MS lesion is shown as a three-step cascade. The analogy is deliberate: a high-security data centre loses performance when its immune “security team” misidentifies protected cables as threats, crosses the restricted barrier, and strips the insulation.
Signs & Symptoms
Lesion location determines the failure mode.
Move the slider to see how increasing lesion burden and pathway involvement can translate into focal symptoms. This is a teaching abstraction, not an EDSS calculator.
Investigations
Do not chase a scan. Build a diagnosis.
The timeline forces chronological reasoning: exclude mimics, demonstrate dissemination, and link objective evidence to a typical clinical syndrome. MRI is powerful, but it is not a diagnosis by itself.
Management
Treat the relapse, suppress new immune attacks, protect function.
The simulator separates acute relapse care, disease-modifying therapy, symptom rehabilitation, and safety escalation. That distinction matters: steroids shorten relapse inflammation; DMTs reduce future inflammatory activity; rehabilitation and symptom control protect participation.
Mastery
Mechanism, diagnosis, and safe management under pressure.
Each attempt displays exactly 10 questions selected from a larger item bank. Questions are mapped to Bloom level, chapter, misconception, source reference, and remediation target.