RT info:eu-repo/semantics/article
T1 Differences in somatosensory processing due to dominant hemispheric motor impairment in cerebral palsy
A1 Riquelme, Inmaculada
A1 Padrón González, Iván
A1 Cifre, Ignasi
A1 González Roldán, Ana María
A1 Montoya, Pedro
K1 Somatosensory processing
K1 Cerebral palsy
K1 Motor impairment
K1 Hemispheric asymmetry
AB Background: Although cerebral palsy (CP) is usually defined as a group of permanent motor disorders due tonon-progressive disturbances in the developing fetal or infant brain, recent research has shown that CP individualsare also characterized by altered somatosensory perception, increased pain and abnormal activation of corticalsomatosensory areas. The present study was aimed to examine hemispheric differences on somatosensory brainprocessing in individuals with bilateral CP and lateralized motor impairments compared with healthy controls.Nine CP individuals with left-dominant motor impairments (LMI) (age range 5–28 yrs), nine CP individuals withright-dominant motor impairments (RMI) (age range 7–29 yrs), and 12 healthy controls (age range 5–30 yrs)participated in the study. Proprioception, touch and pain thresholds, as well as somatosensory evoked potentials(SEP) elicited by tactile stimulation of right and left lips and thumbs were compared.Results: Pain sensitivity was higher, and lip stimulation elicited greater beta power and more symmetrical SEPamplitudes in individuals with CP than in healthy controls. In addition, although there was no significant differencesbetween individuals with RMI and LMI on pain or touch sensitivity, lip and thumb stimulation elicited smaller betapower and more symmetrical SEP amplitudes in individuals with LMI than with RMI.Conclusions: Our data revealed that brain processing of somatosensory stimulation was abnormal in CPindividuals. Moreover, this processing was different depending if they presented right- or left-dominant motor impairments, suggesting that different mechanisms of sensorimotor reorganization should be involved in CP depending on dominant side of motor impairment.
SN 1471-2202
YR 2014
FD 2014
LK http://riull.ull.es/xmlui/handle/915/35585
UL http://riull.ull.es/xmlui/handle/915/35585
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 18-may-2024