> b) Ignore my deriv and dispersion columns and just do the main
> effects using t-tests on the HRFs?
Just a reminder that doing the above can detect significant amplitude
differences which are the result of a delay difference. For a discussion
and alternative approach see:
V. D. Calhoun, M. Stevens, G. D. Pearlson, and K. A. Kiehl, "FMRI Analysis
With the General Linear Model: Removal of Latency-Induced Amplitude Bias by
Incorporation of Hemodynamic Derivative Terms," NeuroImage, vol. 22, pp.
252-257, 2004.
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