OBJECTIVE: The pathophysiology of hallucinations in Parkinson disease is poorly understood. This study investigated the relation between visual hallucination and visual evoked potentials (VEPs) in Parkinson disease. METHODS: Nineteen patients with Parkinson disease were studied. The authors divided patients into 2 groups: patients with visual hallucinations (VH group) and those without visual hallucinations (no-VH group). VEPs using a checkerboard stimulus were recorded under a drug-free state. RESULTS: On multivariate regression analysis, only the average P100 latency was selected and remained significant after the backward elimination method. CONCLUSION: The authors demonstrated a close association between visual hallucinations and elongated VEP latency in Parkinson disease. VEPs may become one of the predictors for visual hallucination.
OBJECTIVE: The pathophysiology of hallucinations in Parkinson disease is poorly understood. This study investigated the relation between visual hallucination and visual evoked potentials (VEPs) in Parkinson disease. METHODS: Nineteen patients with Parkinson disease were studied. The authors divided patients into 2 groups: patients with visual hallucinations (VH group) and those without visual hallucinations (no-VH group). VEPs using a checkerboard stimulus were recorded under a drug-free state. RESULTS: On multivariate regression analysis, only the average P100 latency was selected and remained significant after the backward elimination method. CONCLUSION: The authors demonstrated a close association between visual hallucinations and elongated VEP latency in Parkinson disease. VEPs may become one of the predictors for visual hallucination.
Authors: Ramtin Mehraram; Luis R Peraza; Nicholas R E Murphy; Ruth A Cromarty; Sara Graziadio; John T O'Brien; Alison Killen; Sean J Colloby; Michael Firbank; Li Su; Daniel Collerton; John Paul Taylor; Marcus Kaiser Journal: Brain Date: 2022-06-30 Impact factor: 15.255
Authors: Nicholas Murphy; Alison Killen; Rajnish Kumar Gupta; Sara Graziadio; Lynn Rochester; Michael Firbank; Mark R Baker; Charlotte Allan; Daniel Collerton; John-Paul Taylor; Prabitha Urwyler Journal: Front Neurol Date: 2021-01-28 Impact factor: 4.003
Authors: Flavie Waters; Daniel Collerton; Dominic H Ffytche; Renaud Jardri; Delphine Pins; Robert Dudley; Jan Dirk Blom; Urs Peter Mosimann; Frank Eperjesi; Stephen Ford; Frank Larøi Journal: Schizophr Bull Date: 2014-07 Impact factor: 9.306