Journal
JOURNAL OF NEUROLOGY
Volume 256, Issue 7, Pages 1143-1145Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00415-009-5090-x
Keywords
Eye movements and posture; Vestibular disorders; Eye movement disorders
Categories
Funding
- Medical Research Council [G0600183, MC_U950770497] Funding Source: Medline
- MRC [G0600183, MC_U950770497] Funding Source: UKRI
- Medical Research Council [MC_U950770497, G0600183] Funding Source: researchfish
Ask authors/readers for more resources
It is unclear how the torticollis occasionally observed in patients with progressive supranuclear palsy (PSP) relates to vestibulo-collic reflex mechanisms. We report here the results of vestibular evoked myogenic potentials (VEMPs) in a PSP patient with forced head deviation in the opposite direction of turning, leading to torticollis for a few seconds. As VEMPs were normal bilaterally we conclude that an enhanced vestibulo-collic reflex per se is not the cause of the torticollis in our patient. The abnormal head deviation induced by turning in some PSP patients is best explained by damage to reticular nuclei responsible for resetting eye and head saccades. When such mechanisms are defective, unopposed vestibulo-collic reflexes can lead to eye and head deviations in the opposite direction of body turns.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available