Masseter reflex latencies and amplitudes are not influenced by supratentorial and cerebellar lesions.

Abstract:

:The aim of this study was to investigate possible influences of suprasegmental lesions on the masseter reflex. The masseter reflex was elicited in 54 patients with supratentorial (37 patients) or cerebellar (17 patients) lesions 3-11 days after the acute onset of clinical disease. Patients showing lesions within the pons and midbrain on thin-slice magnetic resonance imaging were excluded from evaluation. The testing procedure included an additional facilitating maneuver (opening and closing the jaw before tapping). Masseter reflex latencies, interside differences, and amplitudes were within the normal range in all patients. Latencies were not different with and without the facilitating maneuver. Amplitudes were significantly higher with the maneuver, but interside differences of amplitudes were unchanged. Masseter reflex abnormality can be taken as a reliable measure of direct involvement of the reflex arc.

journal_name

Muscle Nerve

journal_title

Muscle & nerve

authors

Hopf HC,Hinrichs C,Stoeter P,Urban PP,Marx J,Thömke F

doi

10.1002/(sici)1097-4598(200001)23:1<86::aid-mus11>

subject

Has Abstract

pub_date

2000-01-01 00:00:00

pages

86-9

issue

1

eissn

0148-639X

issn

1097-4598

pii

10.1002/(SICI)1097-4598(200001)23:1<86::AID-MUS11>

journal_volume

23

pub_type

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