Visual short-term memory deficits in REM sleep behaviour disorder mirror those in Parkinson’s disease

Individuals with REM sleep behaviour disorder (RBD) are at high risk of Parkinson’s disease. Rolinski, Zokaei et al. show that they also display the same pattern of visual short-term memory deficits as patients with Parkinson’s disease, and suggest that this ‘fingerprint’ of memory impairment could be a prodromal disease marker.

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