I am very new to Freesurfer and am trying to work my way through the tutorial. I am currently stuck at the 

mkcontrast-sess -analysis my-workmem.sm05.lh -contrast encode-v-base -a 1 section, having received the error:

ERROR: cannot find matlab. Is it in your path?

I have searched the forums and found one instance of this being reported, but the suggested solutions did not resolve the problem. Is there anyway further recommendations you might make?

I have attached a screenshot of my .bash_profile and of my attempts to run mkcontrast. I would be most grateful for any assistance you might offer.

Warm Regards,

Jason