Due to the non-stationary nature of electroencephalogram (EEG) signals, it is imperative to partition the EEG into quasi-stationary intervals with similar statistical characteristics. This study introduces an innovative method leveraging the relative stability of synchronous brain electrical activity for the automatic segmentation of EEG signals, eliminating the need for human intervention. The experiments illustrate that EEG signals segmented using this method demonstrate a certain level of stability across different frequency ranges and frequency power distribution. This consistency ensures the EEG signals remain quasi-stationary to a significant degree. For validation, this method was applied to seizure detection. The evaluation, utilizing EEG data from the department of pediatrics of Chinese PLA General Hospital, reveals that our method outperforms existing techniques. Notably, the approach achieved a seizure detection accuracy of 92.26%, specificity of 91.43%, and sensitivity of 92.93%.
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http://dx.doi.org/10.1109/EMBC53108.2024.10781928 | DOI Listing |
Front Behav Neurosci
February 2025
Department of Cognitive Science, University of California, Irvine, CA, United States.
Emotional memories change over time, but the mechanisms supporting this change are not well understood. Sleep has been identified as one mechanism that supports memory consolidation, with sleep selectively benefitting negative emotional consolidation at the expense of neutral memories, with specific oscillatory events linked to this process. In contrast, the consolidation of neutral and positive memories, compared to negative memories, has been associated with increased vagally mediated heart rate variability (HRV) during wakefulness.
View Article and Find Full Text PDFFront Neurol
February 2025
Department of Neurology, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China.
Background: Varicella-zoster virus (VZV) central nervous system infection is typically observed in immunocompromised patients, and there is a lack of studies involving large samples of non-immunocompromised individuals. In this study, we retrospectively analyzed 108 non-immunocompromised patients diagnosed with VZV central nervous system infection.
Methods: This retrospective study was conducted in the Department of Neurology, Affiliated Nanjing Brain Hospital, Nanjing Medical University, China.
Alzheimers Dement (N Y)
March 2025
TMS Clinical and Research Program, Neuromodulation Division Semel Institute for Neuroscience and Human Behavior at UCLA Los Angeles California USA.
Introduction: Brain network dysfunction, particularly within the default mode network (DMN), is an increasingly apparent contributor to the clinical progression of Alzheimer's disease (AD). Repetitive transcranial magnetic stimulation (rTMS) can target key DMN hubs, maintain signaling function, and delay or improve clinical outcomes in AD. Here, we present the rationale and design of a study using off-the-shelf equipment and the latest clinical evidence to expand on prior rTMS work and reduce participant burden in the process.
View Article and Find Full Text PDFSci Rep
March 2025
School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
Music can effectively influence human emotions, with different melodies and rhythms eliciting varying emotional responses. Among these, tempo is one of the most important parameters affecting emotions. This study explores the impact of music tempo on emotional states and the associated brain functional networks.
View Article and Find Full Text PDFJ Neurooncol
March 2025
Epilepsy and EEG Unit, Department of Neurology, Pitié-Salpêtrière Hospital, Reference Center for Rare Epilepsies, ERN-EPICARE, AP-HP, 75013, Paris, France.
Purpose: Multinodular and vacuolating neuronal tumor (MVNT) is a rarely diagnosed neoplastic lesion often associated with adult-onset focal seizures. In some situations, atypical MRI features of MVNT may mimic other long-term epilepsy associated tumors (LEATs) or diffuse low-grade gliomas. In such a context, the identification of distinct clinical markers is recommended.
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