Neural physiological modeling towards a hemodynamic response function for fMRI

  title={Neural physiological modeling towards a hemodynamic response function for fMRI},
  author={D. M. Afonso and J. M. Sanches and M Lauterbach},
  journal={2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society},
The BOLD signal provided by the functional MRI medical modality measures the ratio of oxy- to deoxy- haemoglobin at each location inside the brain. The detection of activated regions upon the application of an external stimulus, e.g., visual or auditive, is based on the comparison of the mentioned ratios of a rest condition (pre-stimulus) and of a stimulated condition (post-stimulus). Therefore, an accurate knowledge of the impulse response of the BOLD signal to neural stimulus in a given… CONTINUE READING

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