Intermittent bilateral coherence in physiological and essential hand tremor

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985823%3A_____%2F17%3A00474149" target="_blank" >RIV/67985823:_____/17:00474149 - isvavai.cz</a>

Alternative codes found

RIV/67985556:_____/17:00474149 RIV/00216208:11110/17:10361258 RIV/00064165:_____/17:10361258

Result on the web

<a href="http://dx.doi.org/10.1016/j.clinph.2016.12.027" target="_blank" >http://dx.doi.org/10.1016/j.clinph.2016.12.027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.clinph.2016.12.027" target="_blank" >10.1016/j.clinph.2016.12.027</a>

Result language

angličtina

Original language name

Intermittent bilateral coherence in physiological and essential hand tremor

Original language description

We investigated the prevalence and the temporal structure of bilateral coherence in physiological (PT) and essential (ET) hand tremor. Triaxial accelerometric recordings from both hands in 30 healthy subjects and 34 ET patients were analyzed using spectral coherence and wavelet coherence methods. In 12 additional healthy subjects, the relation between the hand tremor and the chest wall acceleration was evaluated using partial coherence analysis. The majority of both PT and ET subjects displayed significant bilateral coherence. While in PT, bilateral coherence was most frequently found in resting hand position (97% of subjects), in ET the prevalence was comparable for resting (54%) and postural (49%–57%) positions. In both PT and ET, epochs of strong coherence lasting several to a dozen seconds were separated by intervals of insignificant coherence. In PT, bilateral coherence at the main tremor frequency (8–12 Hz) was coupled with the ballistocardiac rhythm. The oscillations of the two hands are intermittently synchronized in both PT and ET. We propose that in postural PT, bilateral coherence at the main tremor frequency arises from transient simultaneous entrainment of the left and right hand oscillations to ballistocardiac forcing. Bilateral coherence of hand kinematics provides a sensitive measure of synchronizing influences on the left and right tremor oscillators.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Clinical Neurophysiology

ISSN

1388-2457

e-ISSN

—

Volume of the periodical

128

Issue of the periodical within the volume

4

Country of publishing house

IE - IRELAND

Number of pages

13

Pages from-to

622-634

UT code for WoS article

000397963400013

EID of the result in the Scopus database

2-s2.0-85013212220