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Dear FSL community, I was wondering what the values of the BOLD signal extracted when using fslmeants means. I know BOLD signal is the ratio of oxygenated over deoxygenated hemoglobin, but I was wondering what the actual numerical value means. For example, when we use fslmeants to extract timeseries, we get values around 10,000. Are there units? And is there a method to interpret these values? Thank You, William Sohn