scholarly journals Crossmodal Phase Reset and Evoked Responses Provide Complementary Mechanisms for the Influence of Visual Speech in Auditory Cortex

2020 ◽  
Vol 40 (44) ◽  
pp. 8530-8542 ◽  
Author(s):  
Pierre Mégevand ◽  
Manuel R. Mercier ◽  
David M. Groppe ◽  
Elana Zion Golumbic ◽  
Nima Mesgarani ◽  
...  
Neuroscience ◽  
2021 ◽  
Vol 453 ◽  
pp. 1-16
Author(s):  
Juliette Royer ◽  
Chloé Huetz ◽  
Florian Occelli ◽  
José-Manuel Cancela ◽  
Jean-Marc Edeline

2010 ◽  
Vol 104 (6) ◽  
pp. 3557-3567 ◽  
Author(s):  
Bartosz Telenczuk ◽  
Vadim V. Nikulin ◽  
Gabriel Curio

Evoked EEG/MEG responses are a primary real-time measure of perceptual and cognitive activity in the human brain, but their neuronal generator mechanisms are not yet fully understood. Arguments have been put forward in favor of either “phase-reset” of ongoing oscillations or “added-energy” models. Instead of advocating for one or the other model, here we show theoretically that the differentiation between these two generation mechanisms might not be possible if based solely on macroscopic EEG/MEG recordings. Using mathematical modeling, we show that a simultaneous phase reset of multiple oscillating neuronal (microscopic) sources contributing to EEG/MEG can produce evoked responses in agreement with both, the “added-energy” and the “phase-reset” model. We observe a smooth transition between the two models by just varying the strength of synchronization between the multiple microscopic sources. Consequently, because precise knowledge about the strength of microscopic ensemble synchronization is commonly not available in noninvasive EEG/MEG studies, they cannot, in principle, differentiate between the two mechanisms for macroscopic-evoked responses.


1982 ◽  
Vol 32 (3) ◽  
pp. 421-429 ◽  
Author(s):  
Hirofumi MIYATA ◽  
Saburo KAWAGUCHI ◽  
Akio SAMEJIMA ◽  
Tetsuro YAMAMOTO

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