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PPPD
Visual Vertigo in Busy Environments: What It Means in PPPD (Persistent Postural-Perceptual Dizziness)
Visual vertigo in busy environments reflects disrupted brainstem integration of visual, vestibular, and cervical proprioceptive inputs. Understanding why grocery stores, crowds, and scrolling screens trigger symptoms clarifies the underlying sensory reweighting and where cervical structural factors may contribute to the integration problem. Patients with PPPD describe a distinctive and often disabling pattern: their dizziness, unsteadiness,…
POTS
Dizziness on Standing: What It Means in POTS (Postural Orthostatic Tachycardia Syndrome)
POTS dizziness on standing reflects inadequate autonomic compensation when posture changes. The autonomic centers in the brainstem and the cervical sympathetic chain that mediate this compensation can be affected by head and neck trauma, creating a specific subset of POTS patients with cervical involvement contributing to their autonomic dysfunction. Patients with POTS describe a distinctive…