Akira O'ConnorProfessor, School of Psychology & Neuroscience, University of St Andrews

Topicconnectivity

2010

  1. Not-so-restful resting connectivity fMRI (pt.1)
    fMRI connectivity

    Last week, during a very interesting Brain, Behavior and Cognition colloquium given by Steve Nelson , Jeff Zacks asked a thought-provoking question. He wanted to know what fMRI connectivity maps would look like if you performed…

  2. Not-so-restful resting connectivity fMRI (pt.2)
    fMRI connectivity

    Things I have (re-)learned this week: - Conducting resting connectivity analyses on 60mins worth of 2s TR fMRI data from 19 participants takes time; - It is always a good idea to do a quick literature…

  3. Not-so-restful resting connectivity fMRI (pt.3)
    connectivity

    This is proving to be a little more interesting that I had imagined. The particularly noteworthy finding is a null finding - it doesn't seem to matter how you do the connectivity analysis, the recovered maps…

  4. Marsbar script: Save spheres as both .img and .mat files
    2 commentsSPM connectivity Extensions Marsbar Matlab

    Below (indented) is a straightforward MATLAB/SPM/Marsbar script for generating separate Marsbar ROI and Nifti ROI spheres (user-defined radius) from a set of user-defined MNI coordinates stored in a text file ('spherelist.txt' saved in the same directory…