Clinical Report: Changes in Spontaneous Brain Activity in PPPD

Overview

This study investigates alterations in spontaneous brain activity and functional connectivity in patients with persistent postural-perceptual dizziness (PPPD).

Background

Persistent postural-perceptual dizziness (PPPD) is a chronic vestibular disorder characterized by persistent dizziness and postural instability, often exacerbated by upright posture and complex visual stimuli. Neuroimaging studies have begun to reveal the functional and structural brain changes associated with this condition.

Data Highlights

Key Findings

• Patients with PPPD exhibited altered spontaneous brain activity in multiple regions including the cerebellum and occipital cortex.
• Functional connectivity analyses revealed abnormal connections among key brain areas such as the insula and prefrontal cortex.
• Clinical correlations indicated that disease duration and anxiety severity were associated with functional changes in specific brain regions.

Clinical Implications

The identified brain abnormalities in PPPD patients highlight the need for targeted therapeutic approaches that address both the vestibular and psychological aspects of the disorder. Understanding these functional changes may inform future treatment strategies and improve patient outcomes.

Conclusion

The study provides evidence of significant functional abnormalities in brain regions associated with PPPD.

Related Resources & Content

1. Frontiers in Neurology, Editorial: Mechanisms of functional dizziness: a window for understanding space-motion cognition, 2026
2. Frontiers in Neurology, Disrupted functional connectivity in the hippocampal subregions of patients with migraine without aura: a functional study on mechanisms underlying migraine chronification, 2026
3. Atlantic Health System, A Smarter Path for Dizziness: When and Why to Refer for Vestibular Therapy
4. Diagnostic criteria for persistent postural-perceptual dizziness (PPPD): Consensus document of the committee for the Classification of Vestibular Disorders of the Bárány Society - PMC
5. Effect of conservative therapy for persistent postural-perceptual dizziness: a systematic review and meta-analysis - PubMed
6. Altered brain function in persistent postural perceptual dizziness: A study on resting state functional connectivity - PMC
7. Changes in Resting-State Brain Connectivity Among Individuals with Cervical Spondylotic Myelopathy: Insights from an fNIRS Investigation
8. Diagnostic criteria for persistent postural-perceptual dizziness (PPPD): Consensus document of the committee for the Classification of Vestibular Disorders of the Bárány Society - PMC
9. Effect of conservative therapy for persistent postural-perceptual dizziness: a systematic review and meta-analysis - PubMed
10. Altered brain function in persistent postural perceptual dizziness: A study on resting state functional connectivity - PMC