[Causes and mechanisms in dizziness]

A feeling of vertigo ensues if the senses mediate contradictory information, or if the information is misinterpreted in the brain. Long-term, and repeated vertigo are common, particularly in the elderly. Often it is a matter of benign positional vertigo but the root cause may be organic disease or a functional disorder. In most cases the diagnosis is made at anamnesis but, as this survey shows, vertigo may sometimes be difficult to investigate and its causal connections obscure.