Poor desynchronisation of resting-state eyes-open cortical alpha rhythms in obese subjects without eating disorders
| Autor: | Giuseppe Cibelli, Claudio Del Percio, Brunello Lecce, Anna Valenzano, Ciro Mundi, Antonello Bellomo, Mario De Rosas, Francesco Infarinato, Antonio Ivano Triggiani, Andrea Soricelli, Cristina Limatola, Claudio Babiloni, Annamaria Petito, Nicola Marzano |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Electroencephalography Phase Synchronization Alpha (ethology) Electroencephalography Audiology Overweight Neuropsychological Tests Body Mass Index Feeding and Eating Disorders Young Adult Thinness Alpha rhythm Physiology (medical) Internal medicine medicine Image Processing Computer-Assisted Humans Obesity Cerebral Cortex Resting state fMRI medicine.diagnostic_test Anthropometry electroencephalography (eeg) medicine.disease Sensory Systems low-resolution brain electromagnetic tomography (loreta) Eating disorders Alpha Rhythm Endocrinology underweight subjects Neurology obese subjects Data Interpretation Statistical Obese subjects Female Neurology (clinical) Underweight medicine.symptom Psychology resting-state eyes-open |
| Popis: | Obese subjects without eating disorders were characterised by poor electroencephalographic (EEG) alpha rhythms during resting-state eye-closed condition (Babiloni et al., 2011b). Is this true also for the desynchronisation of alpha rhythms during resting-state eyes opening?EEG data were recorded in 15 underweight, 20 normal-weight, and 18 overweight/obese subjects during resting-state eyes-closed and -open conditions. EEG sources were estimated by LORETA for alpha 1 (8-10.5 Hz) and alpha 2 (10.5-13 Hz). The alpha desynchronisation was calculated as the difference eyes-open minus -closed condition.The occipital alpha 1 desynchronisation was lower in overweight/obese and underweight subjects compared with normal-weight subjects (p0.000005). The same was true for parietal, occipital and temporal alpha 2 (10.5-13 Hz) desynchronisation (p0.000002). The parietal and temporal alpha 1 desynchronisation was lower in overweight/obese than in normal-weight subjects (p0.00001). These effects spatially matched those observed in the resting-state eyes-closed condition.Subjects with abnormal weight and normal eating behaviour are characterised by poor alpha desynchronisation during resting-state eyes opening.Obese subjects without eating disorders show abnormal mechanisms of cortical neural synchronisation and desynchronisation of alpha rhythms in the resting state condition. |
| Databáze: | OpenAIRE |
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