The effects of the cerebral, cerebellar and vestibular systems on the head stabilization reflex

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dc.contributor.authorBademkiran, Fikret
dc.contributor.authorUludag, Burhanettin
dc.contributor.authorGuler, Ayse
dc.contributor.authorCelebisoy, Nese
dc.date.accessioned2019-10-27T23:10:00Z
dc.date.available2019-10-27T23:10:00Z
dc.date.issued2016
dc.departmentEge Üniversitesien_US
dc.description.abstractThe head stabilization reflex (HSR) is a brain stem reflex which appears in the neck muscles in response to sudden head position changes and brings the head to its previous position. The reflex mechanism has not been understood. The afferent fibers come from cervical muscle spindles, vestibular structures, and the accessory nerve, the efferents from the accessory nerve. In this study, we aim to investigate the roles of supraspinal neural structures and the vestibular system on the HSR. The patient group consisted of 86 patients (33 cerebral cortical lesion, 14 cerebellar syndrome and 39 vestibular inexcitability or hypoexcitability); the control group was composed of 32 healthy volunteers. Concentric needle electrodes were inserted into the sternocleidomastoid muscle (SCM) and the accessory nerves were stimulated with the electrical stimulator. A reflex response of about 45-55 ms was obtained from the contralateral SCM muscle. 50 % of cases had bilateral loss whereas 37 % of cases with unilateral cerebellar lesions had an ipsilateral reflex loss. Bilateral HSR loss was detected in 84 % of cases with bilateral cerebellar lesions. Bilateral reflex loss was observed in 70 % of patients with unilateral cortical lesions and 94 % of those with bilateral vestibular dysfunction. Ipsilateral HSR loss was observed in 55 % of cases with unilateral vestibular dysfunction. It was discovered that supraspinal structures and the vestibular system may have an excitatory effect on HSR. This effect may be lost in supra-segmental and vestibular dysfunctions. The localization value of HSR was found to be rather poor in our study.en_US
dc.identifier.doi10.1007/s10072-015-2459-8en_US
dc.identifier.endpage742en_US
dc.identifier.issn1590-1874
dc.identifier.issn1590-3478
dc.identifier.issue5en_US
dc.identifier.pmid26732581en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage737en_US
dc.identifier.urihttps://doi.org/10.1007/s10072-015-2459-8
dc.identifier.urihttps://hdl.handle.net/11454/52797
dc.identifier.volume37en_US
dc.identifier.wosWOS:000378045500011en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringer-Verlag Italia Srlen_US
dc.relation.ispartofNeurological Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHead stabilization reflexen_US
dc.subjectBalanceen_US
dc.subjectVestibularen_US
dc.subjectCerebralen_US
dc.subjectCerebellaren_US
dc.subjectStrokeen_US
dc.titleThe effects of the cerebral, cerebellar and vestibular systems on the head stabilization reflexen_US
dc.typeArticleen_US

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