All posts in category Neuroimaging

Analyzing DTI Data in AFNI (Part 1)

Previously, I talked about how to process DWI/DTI data in FSL and then visualize the results.  AFNI has recently added quite a few tools for analyzing diffusion data.  I’ll cover these in the next post, but first I’ll review correction of eddy currents, coregistering the DWI data to the anatomical and fitting tensors.  The following […]

Basics of AFNI Group Analyses (Part 2)

So after last time, you successfully ran a group-level analysis that you feel fits your scientific question and now you want to know what will survive statistical scrutiny. Well the good news is that you have a few options! First, in order to get any of these options working, you should start by running your […]

Basics of AFNI Group Analyses (Part 1)

I’ve been working on quite a few things recently, and will get back to regular posts soon.  In the meantime, here’s a brief introduction to Group Analysis tests in AFNI. I see the information related to Group Analyses falling into two categories: 1) Which program to run and when; 2) all the other stuff related […]

Installing the ERP PCA Toolkit

Today I’m raising awareness of a phenomenally helpful tool in ERP Research called the ERP PCA Toolkit.  In short, the PCA toolkit allows you perform temporal, spatial, and complex (e.g. temporo-spatial) analyses on ERP data.  Shown in the figure below is a quick temporal-spatial PCA on some ERP data for a go/no-go task.  The PCA […]

Parallelizing Freesurfer

Today I started running VBM and Freesurfer comparisons on a “new” dataset that everyone in our lab is particularly interested in moving forward.  The VBM was all carried out in SPM8 with the VBM8 toolbox. I particularly like the VBM8 toolbox because it makes use of the SPM8 DARTEL transformations, and it’s relatively easy to queue up […]