The Eye-Brain Continuum fMRI Style

We all understand by now that vision occurs in the brain, not in the eyes.  Therefore if you want to evaluate visual function you have to be willing to look beyond the eyes.  A very nice article just out in PLoS One by the Alvarerz group at the Department of Biomedical Engineering of NJIT, on the differentiation between vergence and saccadic functional activity within the human frontal eye fields and midbrain revealed through fMRI, reinforces this notion.  Here is a diagram of their experimental design and of their fMRI outcome detailed in the paper.


The reason this is so nice to see is that it complements the Optomotor Control Theory of Visual Function introduced by Fischer and Hartnegg. 

– Leonard J. Press, O.D., FCOVD, FAAO

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