论文标题
使用EEG信号编码和解码声明记忆的神经振荡
Neural Oscillations for Encoding and Decoding Declarative Memory using EEG Signals
论文作者
论文摘要
声明性记忆与记住日常生活经历的关系进行了研究。先前的研究报告了与行为性能相关的编码阶段中功率谱的变化，但是仍需要探索解码阶段。这项研究研究了与记忆过程有关的神经振荡变化。在记录脑电图时，要求参与者执行编码和解码阶段的内存任务。结果表明，对于编码阶段，低β的功率显着降低，额头中央区域上的高β频段以及低β，高β和伽马频带的降低，左时间区域与成功的记忆效应有关。对于解码阶段，仅在额局部区域观察到α功率的显着降低。这一发现表明了Beta和Alpha频段分别与记忆任务的编码和解码阶段的相关性。
Declarative memory has been studied for its relationship with remembering daily life experiences. Previous studies reported changes in power spectra during encoding phase related to behavioral performance, however decoding phase still needs to be explored. This study investigates neural oscillations changes related to memory process. Participants were asked to perform a memory task for encoding and decoding phase while EEG signals were recorded. Results showed that for encoding phase, there was a significant decrease of power in low beta, high beta bands over fronto-central area and a decrease in low beta, high beta and gamma bands over left temporal area related to successful subsequent memory effects. For decoding phase, only significant decreases of alpha power were observed over fronto-central area. This finding showed relevance of beta and alpha band for encoding and decoding phase of a memory task respectively.
