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  The Dynamics of ERP and Hemodynamic Responses at Very Short Stimulus Durations

Yesilyurt, B., Whittingstall, K., Sengupta, B., Ugurbil, K., & Uludag, K. (2007). The Dynamics of ERP and Hemodynamic Responses at Very Short Stimulus Durations. Poster presented at 13th Annual Meeting of the Organization for Human Brain Mapping (HBM 2007), Chicago, IL, USA.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-CD93-F Version Permalink: https://hdl.handle.net/21.11116/0000-0004-03C5-A
Genre: Poster

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https://www.sciencedirect.com/science/article/pii/S1053811907002789 (Abstract)
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Yesilyurt, B1, 2, Author           
Whittingstall, K2, 3, Author           
Sengupta, B2, 3, 4, 5, Author           
Ugurbil, K, Author
Uludag, K1, 2, Author           
Affiliations:
1Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_2528700              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
3Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
4Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              
5Research Group Computational Vision and Neuroscience, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497805              

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 Abstract: Complementary non-invasive imaging methods on human subjects such as EEG and fMRI can provide new insights into the functioning of the brain and into neurovascular coupling. Particularly, short stimulus durations rather than commonly used standard durations in fMRI experiments are suitable to study the relationship between electrophysiological and vascular measures because of reduction of non-linearities of the hemodynamic response [1]. In this study, using very short stimulus durations (0.1 ms to 5 ms) and measurements with fMRI and EEG we have found that both N75 of the visual evoked potentials and BOLD signal increase and P100 decrease with stimulus duration. In addition, the BOLD signal poststimulus undershoot also tends to deviate more with stimulus duration. These results allow to shed light on whether and which ERP components correlate well with the BOLD signal.

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 Dates: 2007-06
 Publication Status: Issued
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 Identifiers: DOI: 10.1016/j.neuroimage.2007.03.045
BibTex Citekey: 4934
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Title: 13th Annual Meeting of the Organization for Human Brain Mapping (HBM 2007)
Place of Event: Chicago, IL, USA
Start-/End Date: 2007-06-10 - 2007-06-14

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Title: NeuroImage
Source Genre: Journal
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Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 36 (Supplement 1) Sequence Number: - Start / End Page: S47 Identifier: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166