Are there any rules regarding mental disorders? (D&D 3.5)

[akma]

And if yes, what are those rules?

[dsmiles]

IIRC, there are, but I can't place them. Either Heroes of Horror or Book of Vile Darkness had them, I think.

[WarKitty]

What kind of mental disorders are we talking? Quasi-realistic, or fake supervillain disorders?

[The Shadowmind]

The SRD/UA has some disorders under the sanity section. (http://www.d20srd.org/srd/variant/campaigns/sanity.htm)

[mangosta71]

Heroes of Horror has rules for taint and corruption (both physical and mental).