Alterations in Neural Networks During Working Memory Encoding Related to Cognitive Impairment in Temporal Lobe Epilepsy

The aim of the current study was to investigate the alterations in the neural networks of patients with temporal lobe epilepsy (TLE) during working memory (WM) encoding. Patients with TLE ( = 52) and healthy volunteers ( = 35) completed a WM task, during which 34-channel electroencephalogram signals...

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Bibliographic Details
Published in:Frontiers in human neuroscience 2022-01, Vol.15, p.770678-770678
Main Authors: Pan, Liping, Wu, Yakun, Bao, Jie, Guo, Dandan, Zhang, Xin, Wang, Jiajing, Deng, Meili, Yu, Peiran, Wei, Gaoxu, Zhang, Lulin, Qin, Xiao, Song, Yijun
Format: Article
Language:English
Subjects:
Brain
Cognition & reasoning
Cognitive ability
EEG
Electroencephalography
encoding
Epilepsy
Human Neuroscience
Memory
neural network
Neural networks
Patients
Short term memory
Temporal lobe
temporal lobe epilepsy
theta
working memory
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Summary:The aim of the current study was to investigate the alterations in the neural networks of patients with temporal lobe epilepsy (TLE) during working memory (WM) encoding. Patients with TLE ( = 52) and healthy volunteers ( = 35) completed a WM task, during which 34-channel electroencephalogram signals were recorded. The neural networks during WM encoding were calculated in TLE patients with (TLE-WM) and without (TLE-N) WM deficits. Functional connectivity strength decreased, and the theta network was altered in the TLE-WM group, although no significant differences in clinical features were observed between the TLE-N and TLE-WM groups. Not all patients with TLE present with cognitive impairments and alterations in the theta network were identified in TLE patients with functional cognitive deficits. The theta network may represent a sensitive measure of cognitive impairment and could predict cognitive outcomes among patients with TLE.
ISSN:1662-5161
1662-5161
DOI:10.3389/fnhum.2021.770678