Regional brain dysfunction patterns associated with rapid eye movement sleep behavior disorder and visual hallucinations in Parkinson’s disease: a resting-state fMRI study with exploratory ROI-based factorial analysis - Takeaways - MDSpire

Regional brain dysfunction patterns associated with rapid eye movement sleep behavior disorder and visual hallucinations in Parkinson’s disease: a resting-state fMRI study with exploratory ROI-based factorial analysis

  • By

  • Lifang She

  • Xiong Wei

  • Hongyang Cai

  • Liuchen Zhou

  • Zonghong Li

  • Yang Pan

  • June 24, 2026

  • 0 min

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  • 1

    The study involved 96 Parkinson's disease patients categorized into four groups based on the presence of rapid eye movement sleep behavior disorder and visual hallucinations.

  • 2

    Patients with both RBD and visual hallucinations exhibited the greatest clinical burden and cognitive impairment among the groups studied.

  • 3

    Whole-brain analyses identified abnormalities in several brain regions, including frontal, temporal, and cerebellar areas, linked to RBD and visual hallucinations.

  • 4

    Exploratory analyses revealed specific brain region dysfunction patterns associated with RBD and visual hallucinations, interpreted as preliminary findings.

  • 5

    The study suggests that coexisting RBD and visual hallucinations may indicate a more severe subtype of Parkinson's disease requiring further investigation.

Original Source(s)

Regional brain dysfunction patterns associated with rapid eye movement sleep behavior disorder and visual hallucinations in Parkinson’s disease: a resting-state fMRI study with exploratory ROI-based factorial analysis

  • by Lifang She, Xiong Wei, Hongyang Cai, Liuchen Zhou, Zonghong Li, Yang Pan

  • June 24, 2026

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