Hi, SPM users,
My goal is to analyze the gray matter volume difference and concentration between two groups (normal VS. Insomnia patients)
Up to now, I've gotten significant volume concentration regions from SPM8 including covariates with ICV, gender and age.
After then, I would like to do correlation analysis between volume concentration of the patient group and a factor (total sleep time).
However, I've never been tried the above task before. Of couse, I tried to find any tutorial or documents. There's nothing to refer.
Please let me know how to do this. I would really approciate everyone giving any tips for me.
1) In SPM8, there are many statistical designs (one-sample/two-sample test, paried t-test, multiple regression, full factorial, flexible factorial, one-way anova, one-way anova within subject). Which design should I have to choose?
2) For my case, can you give a series of explanations to proceed the correlation analysis?
Thanks,
Best regards,
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