Abstract

Publisher Summary The repetitive transcranial magnetic stimulation (rTMS) is a promising tool for investigating the pathophysiology of tinnitus. Tinnitus refers to a condition in which a patient has a hearing percept that can take the form of ringing, buzzing, roaring, or hissing in the absence of an external sound. Tinnitus can be classified as being either objective or subjective. In the objective form, which is rare, a real sound is generated by an internal biological source, reaching the ear through conduction in body tissues. The source can be vascular turbulence, pulsations, or spasm of the muscles in the middle ear, Eustachian tube, or soft palate. Unlike subjective tinnitus, an observer, using a stethoscope, can often hear objective tinnitus. Subjective tinnitus refers to a phantom auditory sensation for which no objective sound can be identified and only the person who has the tinnitus can hear it. Some patients perceive the phantom sound as coming from inside the ear; others report that the phantom sound is located inside the head, while a few perceive the phantom sound as coming from outside the head.

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