Related Experiment Video
Updated: Sep 16, 2025
05:38
Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
Published on: June 29, 2021
2.5K
Chinese Character Features Facilitate Working Memory Updating: Evidence From the EEG
Hongli Li1, Decai Ren1, Yihang Ouyang1
1School of Education, Anyang Normal University, Anyang, China.
Brain and Behavior
|July 10, 2025
Summary
Chinese character features enhance verbal working memory (WM) updating. Language knowledge in characters improves WM efficiency, while pseudo-characters hinder this process, as shown by behavioral and EEG data.
Area of Science:
- Cognitive Neuroscience
- Psycholinguistics
- Human Memory
Background:
- Working memory (WM) relies on the phonological loop for representation protection.
- Neural mechanisms linking language knowledge to WM facilitation are not fully understood.
- Chinese characters possess unique features that may influence WM.
Purpose of the Study:
- To investigate how Chinese character features impact WM performance.
- To explore the neural mechanisms underlying language's role in WM.
- To compare WM processing for real Chinese characters versus pseudo-characters.
Main Methods:
- Utilized a 2-back task with real and pseudo Chinese characters.
- Recorded behavioral and electroencephalogram (EEG) data from 33 participants.
- Applied event-related potential (ERP) and time-frequency analysis (TFA).
Main Results:
- Real characters yielded higher d-prime and shorter reaction times.
- ERP analysis showed smaller P200 and P300 amplitudes for real characters.
- TFA revealed reduced alpha oscillation event-related desynchronization (ERD) for real characters.
Conclusions:
- Chinese character features significantly influence WM updating processes.
- Language knowledge embedded in characters enhances verbal WM efficiency.
- Lack of linguistic information in pseudo-characters impairs verbal WM updating.
