Vestibular inputs mask the directional specificity of neck proprioceptor afferent signals in sympathetic cardiovascular regulation during postural changes

During postural changes, arterial blood pressure is regulated by multiple sensory systems, including vestibular and cervical proprioceptive inputs, but their interaction remains poorly understood. We examined the involvement and interaction of these inputs in urethane-anesthetized rabbits (n = 24)....

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No actionable change for audiologists — this is basic neuroscience research on vestibular-cardiovascular interactions with no direct clinical audiology application at this stage.

Understanding how vestibular (inner-ear balance) signals interact with other body systems expands foundational knowledge that could eventually inform management of dizziness-related cardiovascular symptoms in vestibular patients.

1. 01Vestibular inputs appear to dominate over neck proprioceptor (position-sensing nerve) signals in cardiovascular regulation during postural changes.
2. 02The study focuses on arterial blood pressure responses, not hearing or auditory function.
3. 03Published in Autonomic Neuroscience, a basic-science journal outside mainstream audiology.
4. 04Findings are relevant to understanding why some balance-disorder patients experience blood pressure changes with head movements.
5. 05No clinical intervention or patient population was tested; this is mechanistic/physiological research.

PMID

42896414

DOI

10.1016/j.autneu.2026.103505.

Journal

Autonomic Neuroscience

Publication type

research_article

Evidence level

4

Population

Not specified — likely animal or human physiological model investigating vestibular and neck proprioceptor interactions

Intervention

Vestibular and neck proprioceptor afferent signal manipulation during postural changes