I was hoping that somebody could explain the parenthetical statement made at the end of the previous message in this string, "the significance of a cluster depends on its size _and_ the threshold that was used"
How and why is that? I have found that for my higher level analyses, the higher my z threshold, the greater the area of activation in almost every case. For this reason, I have had difficulty understanding my results.
I appreciate any help,
Andrew Bleicher, MD
Albert Einstein College of Medicine
Montefiore Medical Center
Dept of Radiology
Bronx, New York
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