Prediction of behavioral performance by alpha-band phase synchronization in working memory.

Autor: Norouzi H; Neuroscience and Neuroengineering Research Lab., Biomedical Engineering Department, School of Electrical Engineering, Iran University of Science & Technology (IUST), Narmak, 16846-13114, Tehran, Iran., Daliri MR; Neuroscience and Neuroengineering Research Lab., Biomedical Engineering Department, School of Electrical Engineering, Iran University of Science & Technology (IUST), Narmak, 16846-13114, Tehran, Iran. Electronic address: daliri@iust.ac.ir.
Jazyk: angličtina
Zdroj: Physiology & behavior [Physiol Behav] 2024 Oct 01; Vol. 284, pp. 114630. Date of Electronic Publication: 2024 Jul 05.
DOI: 10.1016/j.physbeh.2024.114630
Abstrakt: Working memory (WM) is a cognitive system with limited capacity that can temporarily store and process information. The purpose of this study was to investigate functional connectivity based on phase synchronization during WM and its relationship with the behavioral response. In this regard, we recorded EEG/Eye tracking data of seventeen healthy subjects while performing a memory-guided saccade (MGS) task with two different positions (near eccentricity and far eccentricity). We computed saccade error as memory performance and measured functional connectivity using Phase Locking Value (PLV) in the alpha frequency band (8-12 Hz). The results showed that PLV is negatively correlated with saccade error. Our finding indicated that during the maintenance period, PLV between the frontal and visual area in trials with low saccade error increased significantly compared to trials with high saccade error. Furthermore, we observed a significant difference between PLV for near and far conditions in the delay period. The results suggest that PLV in memory maintenance, in addition to predicting saccade error as behavioral performance, can be related to the coding of spatial information in WM.
Competing Interests: Declaration of competing interest None.
(Copyright © 2024. Published by Elsevier Inc.)
Databáze: MEDLINE
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