Our online mental health screening is free, quick, and confidential. We will never require your personal contact information or share your results outside of Brighter Day Psychiatry TMS Clinic. This depression test can help us determine how well suited you are for the benefits of TMS. Transcranial magnetic stimulation is a noninvasive procedure that uses magnetic fields to stimulate nerve cells in the brain to reduce symptoms of depression. TMS is only FDA approved for treatment resistant patients.