thanks Bill.

the main join is the corpus callosum, the white fiber bundle that you see in the upper middle of the hemispheres. I'll have to post a mid-sagital view of the brain here so that you can see the structure of the corpus callosum. It's probably not quite as high as you would've expected, but it's long, going from the front of your brain to the back, more or less.

Indeed, it is. The SM atlas of my brain has been posted for some time now, as has the primate MRI brain. The new atlases are the immunocytochemical ones (calbindin, calretinin, parvalbumin, SMI-32 neurofilament protein) of the primate thalamus. I scripted the interface for those atlases just recently. The interface allows you to zoom into and navigate within sections, compare 2 different sections, and features dynamically-updated drop-down menus. I'm very happy with it, but unfortunately, I could only upload relatively low resolution images to the server because otherwise, the images would take up too much server space. Hence, the images that you see in the new atlases are relatively low resolution, whereas the ones I have access to on my laptop are of orders of magnitude better resolution. In fact, since I run a server on my laptop, you should be able to access it from your browser and be able to see the much higher resolution images there. But, because my IP address is dynamic (i.e., it changes), it could pose a problem in terms of someone else actually trying to access and view the higher res images.