01 September 2005
EEG spectral analysis and coherence in children with hemiparetic cerebral palsy.
Wojciech Kułak, Wojciech Sobaniec, Leszek BoćkowskiMed Sci Monit 2005; 11(9): CR449-455 :: ID: 428455
Abstract
Background: Hemiparetic cerebral palsy (HCP) is described as having twomain forms: arm-dominant, associated with large cortical/subcortical lesions and leg-dominant, associatedwith central white matter lesions. Material/Methods: Twelve children with HCP underwent clinical assessmentand imaging studies. For each child, 20 artifact-free EEG epochs, each of 2s duration, were selectedfor spectral analysis and coherence functions. The objective of this research was to estimate EEG spectralpower, interhemispheric coherence (ICoh), and intrahemispheric (Hcoh) coherence in children with HCPas compared to healthy children. Results: Significant differences between the HCP and control childrenwere detected in the distribution of alpha, theta, delta and beta rhythms over the left and right hemispheres.The ICoh values in the alpha band in the temporal, parietal and occipital regions were significantlylower in the HCP patients than in the controls. There was a significant ICoh increase in the HCP in thetheta and delta band, involving frontal and temporal derivations. The significantly lower ICoh valuesin the HCP children in the beta band involved the frontal, central, parietal and occipital derivations.A higher HCoh value in the HCP children in the alpha band was detected at the right hemisphere. Conclusions:The lower ICoh at the temporal, parietal and occipital derivations in the alpha band implies hypoconnectivitybetween the right and left hemispheres. HCoh asymmetry, which implies relative hypoconnectivity withinthe left hemisphere as compared with the right, suggests that functional hemispheric differentiationmay be diminished.
Keywords: Brain - physiopathology, Adolescent, Case-Control Studies, Cerebral Palsy - physiopathology, Child, Electroencephalography - statistics & numerical data, Paresis - physiopathology
Editorial
01 April 2024 : Editorial
Editorial: Forty Years of Waiting for Prevention and Cure of HIV Infection – Ongoing Challenges and Hopes for Vaccine Development and Overcoming Antiretroviral Drug ResistanceDOI: 10.12659/MSM.944600
Med Sci Monit 2024; 30:e944600
In Press
08 Mar 2024 : Clinical Research
Evaluation of Foot Structure in Preschool Children Based on Body MassMed Sci Monit In Press; DOI: 10.12659/MSM.943765
15 Apr 2024 : Laboratory Research
The Role of Copper-Induced M2 Macrophage Polarization in Protecting Cartilage Matrix in OsteoarthritisMed Sci Monit In Press; DOI: 10.12659/MSM.943738
07 Mar 2024 : Clinical Research
Knowledge of and Attitudes Toward Clinical Trials: A Questionnaire-Based Study of 179 Male Third- and Fourt...Med Sci Monit In Press; DOI: 10.12659/MSM.943468
08 Mar 2024 : Animal Research
Modification of Experimental Model of Necrotizing Enterocolitis (NEC) in Rat Pups by Single Exposure to Hyp...Med Sci Monit In Press; DOI: 10.12659/MSM.943443
Most Viewed Current Articles
17 Jan 2024 : Review article
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
14 Dec 2022 : Clinical Research
Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase LevelsDOI :10.12659/MSM.937990
Med Sci Monit 2022; 28:e937990
16 May 2023 : Clinical Research
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952