PMID- 26522940 OWN - NLM STAT- MEDLINE DCOM- 20160622 LR - 20171024 IS - 1872-8952 (Electronic) IS - 1388-2457 (Linking) VI - 127 IP - 2 DP - 2016 Feb TI - Ipsilateral cortical motor desynchronisation is reduced in Benign Epilepsy with Centro-Temporal Spikes. PG - 1147-1156 LID - S1388-2457(15)00955-4 [pii] LID - 10.1016/j.clinph.2015.08.020 [doi] AB - OBJECTIVE: Magnetoencephalography (MEG) and a simple motor paradigm were used to study induced sensorimotor responses and their relationship to motor skills in children diagnosed with Benign Epilepsy with Centro-Temporal Spikes (BECTS). METHODS: Twenty-one children with BECTS and 15 age-matched controls completed a finger abduction task in MEG; movement-related oscillatory responses were derived and contrasted between groups. A subset of children also completed psycho-behavioural assessments. Regression analyses explored the relationship of MEG responses to manual dexterity performance, and dependence upon clinical characteristics. RESULTS: In children with BECTS, manual dexterity was below the population mean (p=.002) and three showed severe impairment. Our main significant finding was of reduced ipsilateral movement related beta desynchrony (MRBDi) in BECTS relative to the control group (p=.03) and predicted by epileptic seizure recency (p=.02), but not age, medication status, or duration of epilepsy. Laterality scores across the entire cohort indicated that less lateralised MRBD predicted better manual dexterity (p=.04). CONCLUSIONS: Altered movement-related oscillatory responses in ipsilateral motor cortex were associated with motor skill deficits in children with BECTS. These changes were more marked in those with more recent seizures. SIGNIFICANCE: These findings may reflect differences in inter-hemispheric interactions during motor control in BECTS. CI - Copyright (c) 2015 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved. FAU - Brindley, Lisa M AU - Brindley LM AD - Cardiff University Brain Research Imaging Centre, Cardiff University, Cardiff, UK. Electronic address: lisabrindley78@gmail.com. FAU - Koelewijn, Loes AU - Koelewijn L AD - Cardiff University Brain Research Imaging Centre, Cardiff University, Cardiff, UK. FAU - Kirby, Amanda AU - Kirby A AD - Dyscovery Centre, University of South Wales, Newport, UK. FAU - Williams, Natalie AU - Williams N AD - Dyscovery Centre, University of South Wales, Newport, UK. FAU - Thomas, Marie AU - Thomas M AD - Dyscovery Centre, University of South Wales, Newport, UK. FAU - Te Water-Naude, Johann AU - Te Water-Naude J AD - Department of Child Health, University Hospital of Wales, Cardiff, UK. FAU - Gibbon, Frances AU - Gibbon F AD - Department of Child Health, University Hospital of Wales, Cardiff, UK. FAU - Muthukumaraswamy, Suresh AU - Muthukumaraswamy S AD - Schools of Pharmacy and Psychology, University of Auckland, Auckland, New Zealand. FAU - Singh, Krish D AU - Singh KD AD - Cardiff University Brain Research Imaging Centre, Cardiff University, Cardiff, UK. FAU - Hamandi, Khalid AU - Hamandi K AD - Cardiff University Brain Research Imaging Centre, Cardiff University, Cardiff, UK; Welsh Epilepsy Centre, University Hospital of Wales, Cardiff, UK. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151014 PL - Netherlands TA - Clin Neurophysiol JT - Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology JID - 100883319 SB - IM CIN - Clin Neurophysiol. 2016 Feb;127(2):991-2. PMID: 26525364 MH - Action Potentials/physiology MH - Adolescent MH - Brain Waves/*physiology MH - Child MH - Cohort Studies MH - Cortical Synchronization/*physiology MH - Epilepsy, Rolandic/*diagnosis/*physiopathology MH - Female MH - Humans MH - Magnetoencephalography/*methods MH - Male MH - Motor Cortex/*physiopathology OTO - NOTNLM OT - BECTS OT - Development OT - MEG OT - Movement OT - Oscillations EDAT- 2015/11/03 06:00 MHDA- 2016/06/23 06:00 CRDT- 2015/11/03 06:00 PHST- 2014/12/12 00:00 [received] PHST- 2015/08/09 00:00 [revised] PHST- 2015/08/17 00:00 [accepted] PHST- 2015/11/03 06:00 [entrez] PHST- 2015/11/03 06:00 [pubmed] PHST- 2016/06/23 06:00 [medline] AID - S1388-2457(15)00955-4 [pii] AID - 10.1016/j.clinph.2015.08.020 [doi] PST - ppublish SO - Clin Neurophysiol. 2016 Feb;127(2):1147-1156. doi: 10.1016/j.clinph.2015.08.020. Epub 2015 Oct 14.