Usage @ShowDynamicRange <afni dset> The script checks the dynamic range of the time series data at locations inside the brain.
The input dataset is an epi timeseries that has just been assembled from your reconstructed images
The output consists of the following: - A dataset whose prefix ends with minpercchange
wich shows the percent signal change that an increment of 1 digitized value in the time series corresponds to.
The scripts output the average range and the average %change corresponding to a unit digitized signal
To be safe, one should have a dynamic range that does not introduce noise at the level of expected response differences between tasks. For example, if a unit step corresponds to 0.3% signal change then you may not be able to detect differences of comparable magnitude in the FMRI response to two tasks. These differences may be obscured by digitization noise.
Enter search terms or a module, class or function name.