Item

ITEM ACTIONS

This item is discarded!Release HistoryDetailsSummary

Discarded

Poster

Insights into the dynamics of hemodynamic response to millisecond stimulus duration: A fMRI and VEP combination study

MPS-Authors

/persons/resource/persons84323

Yesilyurt, B
Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84313

Whittingstall, K
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84269

Uludag, K
Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

External Resource

(No access)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Yesilyurt, B., Whittingstall, K., Ugurbil, K., & Uludag, K. (2007). Insights into the dynamics of hemodynamic response to millisecond stimulus duration: A fMRI and VEP combination study. Poster presented at 2007 Joint Annual Meeting ISMRM-ESMRMB, Berlin, Germany.

Abstract

In a previous study, we observed that the intercept of BOLD integral at 0ms stimulus duration was not zero. This suggests, below specific stimulus duration the hemodynamic response remains constant. In order to gain insights about the dynamics of BOLD and neural response at ultrashort stimulus durations (0.1 to 5ms), we performed a VEP and fMRI combination study. We have observed that a) a hemodynamic response to 0.1 ms stimulus duration is detectable in human subjects b) both BOLD integral and VEP amplitude increase monotonically with increasing stimulus duration and c) they show nearly similar nonlinearities.