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Spontaneous blinking and brain health in aging: Large-scale evaluation of blink-related oscillations across the lifespan.
Front Aging Neurosci
January 2025
Department of Biomedical Engineering and Science, Florida Institute of Technology, Melbourne, FL, United States.
Blink-related oscillations (BROs) are newly discovered neurophysiological brainwave responses associated with spontaneous blinking, and represent environmental monitoring and awareness processes as the brain evaluates new visual information appearing after eye re-opening. BRO responses have been demonstrated in healthy young adults across multiple task states and are modulated by both task and environmental factors, but little is known about this phenomenon in aging. To address this, we undertook the first large-scale evaluation of BRO responses in healthy aging using the Cambridge Centre for Aging and Neuroscience (Cam-CAN) repository, which contains magnetoencephalography (MEG) data from a large sample ( = 457) of healthy adults across a broad age range (18-88) during the performance of a simple target detection task.
View Article and Find Full Text PDFAlterations in local activity and whole-brain functional connectivity in human immunodeficiency virus-associated neurocognitive disorders: a resting-state functional magnetic resonance imaging study.
Quant Imaging Med Surg
January 2025
Department of Radiology, Beijing Youan Hospital, Capital Medical University, Beijing, China.
Background: Approximately half of human immunodeficiency virus (HIV) patients experience HIV-associated neurocognitive disorders (HAND); however, the neurophysiological mechanisms underlying HAND remain unclear. This study aimed to evaluate changes in functional brain activity patterns during the early stages of HIV infection by comparing local and global indicators using resting-state functional magnetic resonance imaging (rs-fMRI).
Methods: A total of 165 people living with HIV (PLWH) but without neurocognitive disorders (PWND), 173 patients with asymptomatic neurocognitive impairment (ANI), and 100 matched healthy controls (HCs) were included in the study.
Integrating behavioral and neurophysiological insights: High trait anxiety enhances observational fear learning.
Neuroimage
January 2025
Institute for Brain and Psychological Sciences, Sichuan Normal University, Chengdu 610066, China. Electronic address:
Observational fear learning delineates the process by which individuals learn about potential threats through observing others' reactions. Prior research indicates that individuals with high trait anxiety (HTA) manifest pronounced fear responses in direct fear learning scenarios. However, the specific influence of trait anxiety on observational fear learning remains insufficiently explored.
View Article and Find Full Text PDFInterpersonal space is regulated carefully and updated dynamically during social interactions to maintain comfort. We investigated the naturalistic processing of interpersonal distance in real time and space using a powerful implicit neurophysiological measure of attentional engagement. In a sample of 37 young adults recruited at a UK university, we found greater EEG alpha band suppression when a person occupies or moves into near personal space than for a person occupying or moving into public space.
View Article and Find Full Text PDFNeuromodulatory Treatment for Dizziness and Chronic Neurological Dysfunction in an Elderly Patient Using Radio Electric Asymmetric Conveyer (REAC) Neuro Psycho Physical Optimization (NPPO) Gamma Brain Wave Optimization (BWO-G): A Case Report.
Cureus
January 2025
Department of Research, Department of Regenerative Medicine, Rinaldi Fontani Foundation, Florence, ITA.
An 88-year-old woman presented with a longstanding history of dizziness, tremors, and progressive mental and physical decline, significantly impairing her mobility and autonomy. Recently discharged from an ICU, the patient required extensive support for daily activities. Diagnostic evaluations, including EEG and analysis, revealed irregular frequency peaks and altered cortical activity, particularly in the frontal and prefrontal regions.
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