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Fig. 3 | Fluids and Barriers of the CNS

Fig. 3

From: The effect of shunt surgery on corticospinal excitability in idiopathic normal pressure hydrocephalus: a transcranial magnetic stimulation study

Fig. 3

Input–Output curves of shunted patients. All patients (A), good responders (B) and limited responders (C) at baseline (D) and at follow-up (E). A Boltzmann sigmoidal function was used to calculate the Input–Output curves. MEP = Motor evoked potential, %-MSO = percentage of maximum stimulator output V50 (the mid-point of the curve) increased in all patients from baseline to follow-up (p = 0.006), at baseline IO-max (maximum value of the curve) was lower in good responders than limited responders (p = 0.012) and IO-max increased in good responders from baseline to follow-up (p = 0.018)

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