Hello SPMers,

I have a question regarding analysis of MRI results using SPM5. I have 4 groups who performed a cognitive task in the scanner and I am analyzing the rest periods between each block of the task. Can I just look at these rest conditions? What is the best 2nd level analysis when comparing the first half of the rest periods vs. the second half of the rest periods. Thank you for your time.

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Diane Sliz