Some aspects of human visual threshold performance in relation to temporal frequency response characteristics

Temporal characteristics of oxygenation-

Temporal characteristics of oxygenation-sensitive MRI responses to visual activation in humans

✍ Peter Fransson; Gunnar Krüger; Klaus-Dietmar Merboldt; Jens Frahm 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 832 KB

## Abstract Series of single‐shot blipped echo‐planar images with spin‐density weighting and __T__~2~\* sensitivity (2.0 T, TR = 400 ms, TE = 54 ms, flip angle = 30°) were used to study the temporal response profiles to repetitive visual activation (5 Hz, reversing black and white checkerboard vers