This is actually a couple years old, but I stumbled across it today.
A team at Rensselaer and the Washington University of Medicine in St. Louis are developing a small, implantable thermoelectric device and heat pipe to cool specific portions of the brain and help inhibit epileptic seizures. The full story,
indicates in 2005 they were moving toward testing in primates.
A journal review article on the subject is available:
Rothman, S.M., et al., Focal cooling for epilepsy: an alternative therapy that might actually work. Epilepsy Behav, 2005. 7(2): p. 214-21.
and a pdf of the review is available online: