Study2022

Transcranial photobiomodulation enhances visual working memory capacity in humans

Zhao C, Li D, Kong Y, Liu H, Hu Y, Niu H, Jensen O, Li X, Liu H, Song Y

Science advances · 66 citations

How it was studied

Design
Randomized controlled trial (classified by our AI screen)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding
Nonprofit
Wellcome Trust
Government
National Natural Science Foundation of China
Government
Ministry of Science and Technology of the People's Republic of China
Government
National Defense Basic Scientific Research Program of China
Grants
Wellcome Trust (207550/Z/17/Z); National Natural Science Foundation of China (31871099); Ministry of Science and Technology of the People's Republic of China (2021ZD0204300); National Natural Science Foundation of China (61761166003); National Natural Science Foundation of China (-2021ZD0204300); National Natural Science Foundation of China (2022ZD0211300); National Defense Basic Scientific Research Program of China (2018110B011)

Based on 4 listed funder(s).

Publication

Published
2022-12-02 · Sci Adv · vol. 8 · issue 48 · p. eabq3211
Publisher
American Association for the Advancement of Science
Cited
92 citations · more than 99% of similar papers · 9.9× the field average
Impact
Top 10% most cited in its field
References
60 works
Access
Open access (journal) · CC-BY
Research areas
Laser Applications in Dentistry and Medicine · Migraine and Headache Studies · Optical Imaging and Spectroscopy Techniques
Keywords
Working memory, Prefrontal cortex, Neuroscience, Transcranial direct-current stimulation, Set (abstract data type), Cognition, Psychology, Medicine, Stimulation, Cognitive psychology, Audiology, Computer science

10 authors

From CN, GB, US

  • Chenguang Zhao · correspondingBeijing Normal University; Chinese Institute for Brain Research
  • Dongwei Li · correspondingBeijing Normal University; Chinese Institute for Brain Research; University of Birmingham
  • Yuanjun KongBeijing Normal University; Chinese Institute for Brain Research
  • Hongyu LiuThe University of Texas at Arlington; Beijing Normal University; Chinese Institute for Brain Research
  • Yiqing HuBeijing Normal University; Chinese Institute for Brain Research
  • Haijing NiuBeijing Normal University; Chinese Institute for Brain Research

Abstract

Transcranial photobiomodulation (tPBM) is a safe and noninvasive intervention that has shown promise for improving cognitive performance. Whether tPBM can modulate brain activity and thereby enhance working memory (WM) capacity in humans remains unclear. In this study, we found that 1064-nm tPBM applied to the right prefrontal cortex (PFC) improves visual working memory capacity and increases occipitoparietal contralateral delay activity (CDA). The CDA set-size effect during retention mediated the effect between the 1064-nm tPBM and subsequent WM capacity. The behavioral benefits and the corresponding changes in the CDA set-size effect were absent with tPBM at a wavelength of 852 nm or with stimulation of the left PFC. Our findings provide converging evidence that 1064-nm tPBM applied to the right PFC can improve WM capacity.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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