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Tinnitus: An Evolutionary Symptom?

Sylvester Fernandes*

Introduction: The mechanism contributing to the causation of tinnitus continues to evade us. It is unlikely that our current thinking is progressing in the right direction. The literature on the subject is mounting but with no real insights into causation.

Objectives: To introduce, if possible, a paradigm shift that may produce a different trend in thinking and hopefully change our direction and lines of research.

Materials and methods: Herein is presented a hypothesis employing logical inductive reasoning aided by modern computer logic and also incorporating neuroscience, artificial intelligence, evolution and philosophy. This hypothesis attempts to employ a forensic methodology (“crime scene analysis” technique) and utilising the available evidence to build an aetiology, as other methods have not contributed significantly in deciphering causation. A pragmatic model incorporating the known features of tinnitus is thus available.

Results: A plausible explanation for the causation of tinnitus is offered with a possible link to its evasive nature, in our search for a cause.

Conclusion: The functional value of tinnitus may be provided by our evolutionary history. It is possible that tinnitus was a protective adaptive phenomenon in earlier forms but in our current environment merely contributes to nuisance value.