Functional connectivity and infant spatial working memory: a frequency band analysis.

Psychophysiology

Department of Psychology, Virginia Tech, Blacksburg, Virginia 24061, USA.

Published: February 2012

AI Article Synopsis

  • The study examined changes in frontal EEG coherence in infants during a spatial working memory task, focusing on three EEG frequency bands (2-5 Hz, 6-9 Hz, 10-13 Hz).
  • Both the 2-5 Hz and 10-13 Hz bands showed changes in connectivity during different processing stages, highlighting their unique contributions.
  • Notably, only the 10-13 Hz band was able to differentiate between correct and incorrect responses, indicating its importance in assessing frontal functional connectivity in infants.

Article Abstract

The limited research on the functional meaning of infant EEG frequency bands has used measures of EEG power. The purpose of this study was to examine task-related changes in frontal EEG coherence measures for three infant EEG frequency bands (2-5 Hz, 6-9 Hz, 10-13 Hz) during a spatial working memory task. Eight-month-olds exhibited baseline-to-task changes in frontal EEG coherence for all infant frequency bands. Both the 2-5 Hz and the 10-13 Hz bands differentiated frontal functional connectivity during the distinct processing stages, but each band provided unique information. The 10-13 Hz band, however, was the only frequency band to distinguish frontal EEG coherence values during correct and incorrect responses. These data reveal valuable information concerning frontal functional connectivity and the functional meaning of three different infant EEG frequency bands during working memory processing.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3262932PMC
http://dx.doi.org/10.1111/j.1469-8986.2011.01304.xDOI Listing

Publication Analysis

Top Keywords

frequency bands
16
functional connectivity
12
working memory
12
infant eeg
12
eeg frequency
12
frontal eeg
12
eeg coherence
12
spatial working
8
frequency band
8
functional meaning
8

Similar Publications

Pitch variation of the fundamental frequency (F0) is critical to speech understanding, especially in noisy environments. Degrading the F0 contour reduces behaviorally measured speech intelligibility, posing greater challenges for tonal languages like Mandarin Chinese where the F0 pattern determines semantic meaning. However, neural tracking of Mandarin speech with degraded F0 information in noisy environments remains unclear.

View Article and Find Full Text PDF

A significant proportion of patients who have recovered from COVID-19 suffer from persistent symptoms, referred to as "post-acute sequelae of SARS-CoV-2 infection (PASC)". Abnormal brain intrinsic activity has been observed in PASC patients, but the patterns of frequency-dependent intrinsic activity in the PASC and non-PASC (recovered COVID-19 patients without persistent symptoms) groups and their association with neuropsychiatric sequelae remain unclear in PASC. Twenty-nine PASC patients, 27 non-PASC subjects, and 31 healthy controls (HCs) were recruited.

View Article and Find Full Text PDF

Partial directed coherence analysis of resting-state EEG signals for alcohol use disorder detection using machine learning.

Front Neurosci

January 2025

Center of Excellence in Intelligent Engineering Systems (CEIES), Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia.

Introduction: Excessive alcohol consumption negatively impacts physical and psychiatric health, lifestyle, and societal interactions. Chronic alcohol abuse alters brain structure, leading to alcohol use disorder (AUD), a condition requiring early diagnosis for effective management. Current diagnostic methods, primarily reliant on subjective questionnaires, could benefit from objective measures.

View Article and Find Full Text PDF

High resolution infrared spectra of water-CO dimers are further studied using tunable infrared sources to probe a pulsed slit jet supersonic expansion. The relatively weak transition of DO-CO in the DO ν fundamental region (≈2760 cm) is observed for the first time, as are various spectra of DO-CO. Combination bands involving the intermolecular in plane geared bend (disrotatory) mode are observed for HO-CO (≈1642, 2397 cm) in the HO ν and CO ν regions, for HDO-CO (≈2761 cm) in the HDO ν region, and for DO-CO (≈2386, 2705 and 2821 cm) in the CO ν, DO ν, and DO ν regions.

View Article and Find Full Text PDF

Brain changes in sleep-related hypermotor epilepsy observed from wakefulness and N2 sleep: A matched case-control study.

Clin Neurophysiol

January 2025

Department of Neurology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China. Electronic address:

Objective: Sleep-related hypermotor epilepsy (SHE) is a relatively uncommon epilepsy syndrome, characterized by seizures closely related to the sleep cycle. This study aims to explore interictal electroencephalographic (EEG) characteristics in SHE.

Methods: We compared EEG data from 20 patients with SHE, 20 patients with focal epilepsy (FE), and 14 healthy controls, carefully matched for age, sex, education level, epilepsy duration, and drug-resistant epilepsy.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!