I was hesitant to work with a schizophrenic because I'm familiar with the disorder and I didn't want to be the root of exacerbation of her issues. I was amazingly surprised to discover that a strong Sativa dominant line I was running last year was her favorite, and, according to her husband, turned her back into his wife. I've generally tried to give them the couchlock Indicas, but when she hit on the Chocolate Diesel as a favorite I realized perhaps it would be good to allow a little roaming into strongly Sativa-dominant territory.
What may be important to note is that when I run Sativas I like to let them go as long as they (appear to) need. There are many strains that, when grown indoors, require a good 16 weeks, and this can get expensive depending on your power provider. I like doing it outside and then everything has a great cure on it, and I believe that may also play a role.
I haven't read this thread in its entirety, but I have a childhood friend whose mother was schizophrenic with a personality disorder, and have known many others affected by it. I wish we'd known back then what we do now, as far as treatment options and what cannabis can do. I wish I'd known about cannabis when my Touretter boy was being treated.
Im not Skitzo, but i have Anxiety, andi notice that a 70/30 ratio of sativa to indica is awesome for day time smoke. and as long as i take my Medication. It works wonders. HIGH THC strains, or harvested to early, makes me Paranoid as hell. Just my personal experiences.