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No effects of anodal transcranial direct current stimulation on contrast sensitivity function
He, Qing1,2; Lin, Bo-Rong1,2; Zhao, Jin1,2; Shi, Ying-Zhen1,2; Yan, Fang-Fang1,2; Huang, Chang-Bing1,2
Corresponding AuthorYan, Fang-Fang(yanff@psych.ac.cn) ; Huang, Chang-Bing(huangcb@psych.ac.cn)
2019
Source PublicationRESTORATIVE NEUROLOGY AND NEUROSCIENCE
ISSN0922-6028
Volume37Issue:2Pages:109-118
AbstractBackground: Transcranial direct current stimulation (tDCS) is a well-established non-invasive brain stimulation technique that has been widely applied to modulate cortical excitability in human brain. The results of previous tDCS studies on modulating contrast sensitivity, one of the most fundamental visual functions, were mixed. Objective: We aim to systematically investigate the effects of anodal tDCS on contrast sensitivity functions (CSF), evaluate the responsiveness explanation of tDCS effects, and discuss results along with measurement precision. Methods: We designed a single-blinded, sham-controlled within-subject study. Twenty-seven healthy adult subjects received three sets of 15 min tDCS (two 2-mA anodal and one sham) that delivered at Oz, with CSF measured before and after each tDCS stimulation. Experimental sessions were separated by at least twenty-four hours. CSF was assessed with a Bayesian procedure that accurately estimated CSF within minutes. The anodal tDCS-induced effect was gauged with the change in CSF after stimulation; responsiveness was indexed by correlation between CSF changes in different stimulation; precision was calculated from resampling. Results: Our results indicated that neither the first nor the second session anodal tDCS altered the CSF significantly. Responsiveness was inconsistent between the two anodal sessions, indicating the usual responder/non-responder explanation of tDCS effects was unconvincing. Precision was less than 2 dB and constant throughout the whole experiment. Conclusions: The anodal tDCS, at least with two sessions, has no effect on modulating CSF. The absence of anodal tDCS effect on CSF was not due to subject's responsiveness to tDCS or measurement precision. More studies were needed to determine the optimal vision modulation configuration.
KeywordTranscranial direct current stimulation tDCS contrast sensitivity function CSF vision non-invasive brain stimulation
DOI10.3233/RNN-180881
Indexed BySCI ; SCI
Language英语
Funding OrganizationNational Natural Science Foundation of China ; Scientific Foundation of Institute of Psychology, Chinese Academy of Sciences ; Beijing Postdoctoral Research Foundation ; CAS Key Laboratory of Behavioral Science, Institute of Psychology
Funding ProjectNational Natural Science Foundation of China[NSFC 31470983] ; Scientific Foundation of Institute of Psychology, Chinese Academy of Sciences[Y7CX332008] ; Beijing Postdoctoral Research Foundation ; CAS Key Laboratory of Behavioral Science, Institute of Psychology
WOS Research AreaNeurosciences & Neurology
WOS SubjectNeurosciences
WOS IDWOS:000464944000003
PublisherIOS PRESS
WOS KeywordRANDOM NOISE STIMULATION ; VISUAL-CORTEX ; MOTOR CORTEX ; ELECTRICAL-STIMULATION ; PHOSPHENE THRESHOLDS ; MOTION PERCEPTION ; MODULATION ; EXCITABILITY ; TDCS ; NEUROPLASTICITY
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Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/28956
Collection中国科学院行为科学重点实验室
Corresponding AuthorYan, Fang-Fang; Huang, Chang-Bing
Affiliation1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Dept Psychol, Beijing, Peoples R China
Recommended Citation
GB/T 7714
He, Qing,Lin, Bo-Rong,Zhao, Jin,et al. No effects of anodal transcranial direct current stimulation on contrast sensitivity function[J]. RESTORATIVE NEUROLOGY AND NEUROSCIENCE,2019,37(2):109-118.
APA He, Qing,Lin, Bo-Rong,Zhao, Jin,Shi, Ying-Zhen,Yan, Fang-Fang,&Huang, Chang-Bing.(2019).No effects of anodal transcranial direct current stimulation on contrast sensitivity function.RESTORATIVE NEUROLOGY AND NEUROSCIENCE,37(2),109-118.
MLA He, Qing,et al."No effects of anodal transcranial direct current stimulation on contrast sensitivity function".RESTORATIVE NEUROLOGY AND NEUROSCIENCE 37.2(2019):109-118.
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