Transcranial Magnetic Core This Core allows testing of TMS on a number of conditions. As the equipment aged, we upgraded the human facility and used the older equipment to develop our capacity to use TMS on animals in the Animal Electrophysiology Core. Effects of TMS on tinnitus: Top: PET scan showing hypermetabolic temporal lobe in a tinnitus patient. Middle: Repeat scan of same patient after a single treatment with TMS, note decrease in metabolism. Bottom: Scan after repetitive TMS treatments to alleviate symptoms in the same patient.