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Cortical stimulation consolidates and reactivates visual experience: neural plasticity from magnetic entrainment of visual activity

Liao, Hsin-I and Wu, Daw-An and Halelamien, Neil and Shimojo, Shinsuke (2013) Cortical stimulation consolidates and reactivates visual experience: neural plasticity from magnetic entrainment of visual activity. Scientific Reports, 3 . Art. No. 2228. ISSN 2045-2322. http://resolver.caltech.edu/CaltechAUTHORS:20130826-154018095

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Abstract

Delivering transcranial magnetic stimulation (TMS) shortly after the end of a visual stimulus can cause a TMS-induced ‘replay’ or ‘visual echo’ of the visual percept. In the current study, we find an entrainment effect that after repeated elicitations of TMS-induced replay with the same visual stimulus, the replay can be induced by TMS alone, without the need for the physical visual stimulus. In Experiment 1, we used a subjective rating task to examine the phenomenal aspects of TMS-entrained replays. In Experiment 2, we used an objective masking paradigm to quantitatively validate the phenomenon and to examine the involvement of low-level mechanisms. Results showed that the TMS-entrained replay was not only phenomenally experienced (Exp.1), but also able to hamper letter identification (Exp.2). The findings have implications in several directions: (1) the visual cortical representation and iconic memory, (2) experience-based plasticity in the visual cortex, and (3) their relationship to visual awareness.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1038/srep02228 DOIArticle
http://www.nature.com/srep/2013/130718/srep02228/full/srep02228.htmlPublisherArticle
Additional Information:© 2013 Nature Publishing Group. This work is licensed under a Creative Commons Attribution- NonCommercial-ShareAlike 3.0 Unported license. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0. Received 15 March 2013; Accepted 02 July 2013; Published 18 July 2013. We thank Hsiu-Yu Yeh for helping conducting experiments together with HL and NH. The project was supported by JST.ERATO Shimojo Implicit Brain Function Project, and JST.CREST Implicit Interpersonal Information project. Author contributions: H.L., D.W., N.H. and S.S. conceptualized the research idea and designed the experiments. H.L., D.W. and N.H. collected the data and conducted the analysis. H.L., D.W. and S.S. wrote the manuscript. S.S. supervised and funded the project.
Funders:
Funding AgencyGrant Number
JST.ERATO Shimojo Implicit Brain Function Project UNSPECIFIED
JST.CREST Implicit Interpersonal Information Project UNSPECIFIED
Subject Keywords: Visual system; Consciousness; Perception; Psychology
Record Number:CaltechAUTHORS:20130826-154018095
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130826-154018095
Official Citation:Liao, H.,Wu, D.,Halelamien,N. & Shimojo, S. Cortical stimulation consolidates and reactivates visual experience: neural plasticity frommagnetic entrainment of visual activity. Sci. Rep. 3, 2228; DOI:10.1038/srep02228 (2013)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:40939
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:29 Aug 2013 23:51
Last Modified:29 Aug 2013 23:51

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