Rudolfo Marques
Fri. 19 Aug.11, 12:03
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fmri, block design: length of "On" and "Off" periodes ? |
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Hello,
I'm planning some fmri research and I wonder why often the blocks of stimulation and nothing (or called base level or resting state) have the same length
If I let -maybe- a flickering checkerboard about 16 seconds on, as my "ON" period... then I should not need further 16 seconds resting state? DO I?
The BOLD-related effects should be away after about 2 seconds?
Thanks
Rudolfo
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