Assessment of Cognitive Function with Sleep Spindle Characteristics in Adults with Epilepsy

Objective. Epilepsy may cause chronic cognitive impairment by disturbing sleep plasticity. Sleep spindles play a crucial role in sleep maintenance and brain plasticity. This study explored the relationship between cognition and spindle characteristics in adult epilepsy. Methods. Participants underwe...

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Main Authors: Yajin Huang, Yaqing Liu, Wenjun Song, Yanjun Liu, Xiaoqian Wang, Juping Han, Jiang Ye, Hongmei Han, Li Wang, Juan Li, Tiancheng Wang
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2023/7768980
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author Yajin Huang
Yaqing Liu
Wenjun Song
Yanjun Liu
Xiaoqian Wang
Juping Han
Jiang Ye
Hongmei Han
Li Wang
Juan Li
Tiancheng Wang
author_facet Yajin Huang
Yaqing Liu
Wenjun Song
Yanjun Liu
Xiaoqian Wang
Juping Han
Jiang Ye
Hongmei Han
Li Wang
Juan Li
Tiancheng Wang
author_sort Yajin Huang
collection DOAJ
description Objective. Epilepsy may cause chronic cognitive impairment by disturbing sleep plasticity. Sleep spindles play a crucial role in sleep maintenance and brain plasticity. This study explored the relationship between cognition and spindle characteristics in adult epilepsy. Methods. Participants underwent one-night sleep electroencephalogram recording and neuropsychological tests on the same day. Spindle characteristics during N2 sleep were extracted using a learning-based system for sleep staging and an automated spindle detection algorithm. We investigated the difference between cognitive subgroups in spindle characteristics. Multiple linear regressions were applied to analyze associations between cognition and spindle characteristics. Results. Compared with no/mild cognitive impairment, epilepsy patients who developed severe cognitive impairment had lower sleep spindle density, the differences mainly distributed in central, occipital, parietal, middle temporal, and posterior temporal (P<0.05), and had relatively long spindle duration in occipital and posterior temporal P<0.05. Mini-Mental State Examination (MMSE) was associated with spindle density (pars triangularis of the inferior frontal gyrus (IFGtri): β=0.253, P=0.015, and P.adjust=0.074) and spindle duration (IFGtri: β=−0.262, P=0.004, and P.adjust=0.030). Montreal Cognitive Assessment (MoCA) was associated with spindle duration (IFGtri: β=−0.246, P=0.010, and P.adjust=0.055). Executive Index Score (MoCA-EIS) was associated with spindle density (IFGtri: β=0.238, P=0.019, and P.adjust=0.087; parietal: β=0.227, P=0.017, and P.adjust=0.082) and spindle duration (parietal: β=−0.230, P=0.013, and P.adjust=0.065). Attention Index Score (MoCA-AIS) was associated with spindle duration (IFGtri: β=−0.233, P=0.017, and P.adjust=0.081). Conclusions. The findings suggested that the altered spindle activity in epilepsy with severe cognitive impairment, the associations between the global cognitive status of adult epilepsy and spindle characteristics, and specific cognitive domains may relate to spindle characteristics in particular brain regions.
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spelling doaj-art-e55ef81341ba4ae79eefd2f7cff4cb622025-08-20T02:21:18ZengWileyNeural Plasticity1687-54432023-01-01202310.1155/2023/7768980Assessment of Cognitive Function with Sleep Spindle Characteristics in Adults with EpilepsyYajin Huang0Yaqing Liu1Wenjun Song2Yanjun Liu3Xiaoqian Wang4Juping Han5Jiang Ye6Hongmei Han7Li Wang8Juan Li9Tiancheng Wang10The Second Clinical Medical CollegeDepartment of NeurologyDepartment of NeurologyDepartment of NeurologyThe Second Clinical Medical CollegeThe Second Clinical Medical CollegeDepartment of NeurologyDepartment of NeurologyDepartment of NeurologyDepartment of NeurologyDepartment of NeurologyObjective. Epilepsy may cause chronic cognitive impairment by disturbing sleep plasticity. Sleep spindles play a crucial role in sleep maintenance and brain plasticity. This study explored the relationship between cognition and spindle characteristics in adult epilepsy. Methods. Participants underwent one-night sleep electroencephalogram recording and neuropsychological tests on the same day. Spindle characteristics during N2 sleep were extracted using a learning-based system for sleep staging and an automated spindle detection algorithm. We investigated the difference between cognitive subgroups in spindle characteristics. Multiple linear regressions were applied to analyze associations between cognition and spindle characteristics. Results. Compared with no/mild cognitive impairment, epilepsy patients who developed severe cognitive impairment had lower sleep spindle density, the differences mainly distributed in central, occipital, parietal, middle temporal, and posterior temporal (P<0.05), and had relatively long spindle duration in occipital and posterior temporal P<0.05. Mini-Mental State Examination (MMSE) was associated with spindle density (pars triangularis of the inferior frontal gyrus (IFGtri): β=0.253, P=0.015, and P.adjust=0.074) and spindle duration (IFGtri: β=−0.262, P=0.004, and P.adjust=0.030). Montreal Cognitive Assessment (MoCA) was associated with spindle duration (IFGtri: β=−0.246, P=0.010, and P.adjust=0.055). Executive Index Score (MoCA-EIS) was associated with spindle density (IFGtri: β=0.238, P=0.019, and P.adjust=0.087; parietal: β=0.227, P=0.017, and P.adjust=0.082) and spindle duration (parietal: β=−0.230, P=0.013, and P.adjust=0.065). Attention Index Score (MoCA-AIS) was associated with spindle duration (IFGtri: β=−0.233, P=0.017, and P.adjust=0.081). Conclusions. The findings suggested that the altered spindle activity in epilepsy with severe cognitive impairment, the associations between the global cognitive status of adult epilepsy and spindle characteristics, and specific cognitive domains may relate to spindle characteristics in particular brain regions.http://dx.doi.org/10.1155/2023/7768980
spellingShingle Yajin Huang
Yaqing Liu
Wenjun Song
Yanjun Liu
Xiaoqian Wang
Juping Han
Jiang Ye
Hongmei Han
Li Wang
Juan Li
Tiancheng Wang
Assessment of Cognitive Function with Sleep Spindle Characteristics in Adults with Epilepsy
Neural Plasticity
title Assessment of Cognitive Function with Sleep Spindle Characteristics in Adults with Epilepsy
title_full Assessment of Cognitive Function with Sleep Spindle Characteristics in Adults with Epilepsy
title_fullStr Assessment of Cognitive Function with Sleep Spindle Characteristics in Adults with Epilepsy
title_full_unstemmed Assessment of Cognitive Function with Sleep Spindle Characteristics in Adults with Epilepsy
title_short Assessment of Cognitive Function with Sleep Spindle Characteristics in Adults with Epilepsy
title_sort assessment of cognitive function with sleep spindle characteristics in adults with epilepsy
url http://dx.doi.org/10.1155/2023/7768980
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