vbview2

vbview is VoxBo's all-purpose image viewer. It's designed to be self-explanatory, although issues will come up. As of release 1.8.2, it's still evolving rapidly, so this page may become outdated periodically.

Time Series Browsing

The time series pane shows you the time series for a selected voxel or region. If you have a tes file loaded up, it's just what's in that tes file. If you're viewing a GLM, it's the concatenated time series for the entire GLM. Options for time series viewing are off to the right. Here's what they mean.

• Mean scale — each time point is divided by the mean of the whole time series
• Linear detrend — a regression line is fitted and any linear effect is removed
• Apply filtering — the same time domain filtering applied in calculating the GLM is applied to this time series (GLM only)
• Remove covariates of no interest — removes the estimated effects of covariates of no interest from the time series (note that this is done after the above operations)
• Scale covariates using beta — scales any displayed covariates by the parameter estimate
• Show power spectrum — converts whatever is displayed to a power spectrum, with the zeroth frequency zeroed

Additionally, the following three options determine which voxels are included:

• graph voxel under mouse
• graph selected mask
• graph voxel at crosshairs