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Neural Mechanisms of Recognition, Updating, and Maintenance of Chinese Characters in Working Memory
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  • Hongli Li,
  • Jianru Feng,
  • Xiaoxuan Shi,
  • Xin Zhao
Hongli Li
Northwest Normal University
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Jianru Feng
Northwest Normal University
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Xiaoxuan Shi
Northwest Normal University
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Xin Zhao
Northwest Normal University

Corresponding Author:[email protected]

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Using the N-back task, we investigated how memory load influences the neural activity of the Chinese character cognitive subprocess (recognition, updating, and maintenance) in Mainland Chinese speakers. Twenty-seven participants completed the Chinese character N-back paradigm while having their event-related potentials recorded. The study employed time and frequency domain analyses of EEG data. Results showed that accuracy decreased and response times increased with larger N values. For ERPs, N2pc and P300 amplitudes decreased, and SW amplitude increased with larger N values. For time frequency analyses, the desynchronization of alpha oscillations decreased after stimulus onset, but the synchronization of alpha oscillations increased during the maintenance phase. The results suggest that greater memory load is related to a decrease in cognitive resources during updating and an increase in cognitive resources during information maintenance. Results of a brain-behavior relevant analysis showed that the ERP indicators in the maintenance phase predicted behavioral performance.
30 Aug 2023Submitted to Psychophysiology
01 Sep 2023Assigned to Editor
01 Sep 2023Submission Checks Completed
01 Sep 2023Review(s) Completed, Editorial Evaluation Pending
16 Sep 2023Reviewer(s) Assigned