Hello,
1. Sparse imaging.
We used sparse imaging to deal with scanner noise so it involved
acquisition of brain images after long periods (4-6seconds) of stimulus
presentation in the absence of scanner noise. The brain volume was acquired
in less then 1 second. TR is 12 seconds.
My question is :
What is the best way to analyze this design with FSL?
=== More info on the experimental design:
Let's say :
======TR 1 ================|| =========== TR 2 ========= ||
============== TR 3 =========
1 2 3 4 5 6 7 8 9 10 11 12 || 1 2 3 4 5 6 7 8 9 10 11 12 || 1 2 3 4 5 6 7
8 9 10 11 12 etc
......1.........................1...........................................
1.............
------------------------------------------------
TR=12 seconds;
TR 1:
second 1: one brain volume is acquired in less than one second;
second 2-3: no brain volume is acquired;
second 4: event A is ON after 4 seconds from the beginning of the TR 1.
second 5-12: no brain volume is acquired;
TR2 :
second 1: one brain volume is acquired in less than one second;
second 2: event A is ON after 2 seconds from the beginning of the TR 2.
second 3-12: no brain volume is acquired;
TR3 :
second 1: one brain volume is acquired in less than one second;
second 2-8: no brain volume is acquired;
second 9: event A is ON after 9 seconds from the beginning of the TR 3.
second 10-12: no brain volume is acquired;
Thank you for your help;
Anda
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