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  Hemodynamics and nonlinearities of BOLD response to ultrashort visual stimulation (5ms - 1s)

Uludag, K., Yesilyurt, B., & Ugurbil, K. (2006). Hemodynamics and nonlinearities of BOLD response to ultrashort visual stimulation (5ms - 1s). Poster presented at 14th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2006), Seattle, WA, USA.

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externe Referenz:
https://cds.ismrm.org/ismrm-2006/files/program.pdf (Zusammenfassung)
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 Urheber:
Uludag, K1, 2, Autor           
Yesilyurt, B1, 2, Autor           
Ugurbil, K, Autor
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
2Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_2528700              

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 Zusammenfassung: It has generally been suggested that one cannot temporally resolve alterations in neural activity in the range of milliseconds using BOLD signal since
hemodynamic response evolves in seconds. However, in this study using ultrashort visual stimulus durations ranging from 5 milliseconds to 1 second we
investigated the hemodynamic response and nonlinearity of BOLD response. We were able to show that 1) a BOLD response to stimulus durations as short
as 5 ms is detectable in humans; b) BOLD responses to different stimulus durations are highly non-linear and c) non-linearities depend not only to stimulus
duration but also on intensity.

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Sprache(n):
 Datum: 2006-05
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: BibTex Citekey: 4362
 Art des Abschluß: -

Veranstaltung

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Titel: 14th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2006)
Veranstaltungsort: Seattle, WA, USA
Start-/Enddatum: 2006-05-06 - 2006-05-12

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Quelle 1

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Titel: 14th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2006)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: - Artikelnummer: 2784 Start- / Endseite: 535 Identifikator: -