Hallucinations

One of the strangest symptoms of Parkinson's is the sudden appearance of unexplained figures – whether that's a cat or a small child, a barking dog or a fully clad Venetian – in your environment. There hallucinations can be benign, but they can also be unsettling, and this week we're trying to find out what's causing them. Are they related to night terrors? Can they always be rationalised? And are there any potential treatment pathways for people struggling with hallucinatory visions? As ever, we're aided in our quest of understanding by a top expert.

Movers & Shakers is brought to you in partnership with Cure Parkinson's.

Presented by Rory Cellan-Jones, Gillian Lacey-Solymar, Mark Mardell, Paul Mayhew-Archer, Sir Nicholas Mostyn and Jeremy Paxman.

Produced and edited by Nick Hilton for Podot.

Sound mixing by Ewan Cameron.

Music by Alex Stobbs.

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