Key result
Nerve fibers with type 1 responses to vestibular stimulation were significantly more common in the hindlimb (21 of 29 units) than in the face (2 of 11 units) (P < 0.05).
Population
Chloralose-anesthetized cats
Comparison
Electrical stimulation of vestibular afferents vs Comparison across three different rostrocaudal…
Design
Preclinical
Authors
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Animal findings in cats warrant no clinical change; leaves open whether anatomic location determines human VSR expression.
p-value: p=<0.05
This preclinical study demonstrates that vestibulosympathetic reflexes are anatomically patterned based on rostrocaudal level rather than target organ.
Kerman et al. (2000) studied this question. Anatomic location of muscle vasoconstrictor fibers (hindlimb, forelimb, face) vs. Comparison between different rostrocaudal levels was evaluated on Proportion of nerve fibers with type 1 responses (initial inhibition by vestibular stimulation) (p=<0.05). Nerve fibers with type 1 responses to vestibular stimulation were significantly more common in the hindlimb (21 of 29 units) than in the face (2 of 11 units) (P < 0.05).
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