Spatio-temporal analysis of EEG features during consciousness recovery in patients with disorders of consciousness
| Autor: | Yong Yang, Ying Xu, Xiaohua Hu, Yixing Zhou, Kehong Liu, Ling Lei, Alice Doubliez |
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| Rok vydání: | 2022 |
| Předmět: |
Adult
Male Consciousness media_common.quotation_subject Disorders of consciousness Electroencephalography Approximate entropy Young Adult Spatio-Temporal Analysis Physiology (medical) medicine Humans In patient Aged media_common medicine.diagnostic_test Persistent Vegetative State Brain Mean age Middle Aged medicine.disease Sensory Systems Sample entropy Neurology Consciousness Disorders Female Neurology (clinical) Psychology Cognitive psychology |
| Zdroj: | Clinical Neurophysiology. 133:135-144 |
| ISSN: | 1388-2457 |
| DOI: | 10.1016/j.clinph.2021.08.027 |
| Popis: | As consciousness recovery is not only dynamic but also involves interactions between various brain regions, elucidating the mechanism of recovery requires tracking cortical activity in spatio-temporal dimensions.We tracked the cortical activities of 40 patients (mean age: 54.38 years; 28 males; 21 patients with minimally conscious states) with disorders of consciousness, and collected a total of 156 electroencephalographic signals. We investigated the longitudinal changes in EEG nonlinear dynamic features (i.e., approximate entropy, sample entropy, and Lempel-Ziv complexity) and relative wavelet energy along with consciousness recovery.Global EEG features showed a non-monotonic trend during consciousness recovery (P 0.05). When the level of consciousness of patients was transferred to a minimally conscious state from an unresponsive wakefulness syndrome/ vegetative state, an inflection point appeared in the EEG features. The EEG feature change trends between the injured and uninjured areas were dissimilar (P 0.05). Importantly, the degree of dissimilarity increased non-monotonically across the levels of consciousness (P 0.05).EEG recovery was non-monotonic and dissimilar in spatio-temporal dimensions, with an inflection point.These findings further clarify the process of consciousness recovery and provide assistance in exploring the mechanism of consciousness recovery. |
| Databáze: | OpenAIRE |
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