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The enigma of the tinnitus-free dream state in a Bayesian world.

De Ridder D, Joos K, Vanneste S - Neural Plast. (2014)

Bottom Line: That is, during the awake state the brain constantly makes predictions about the environment.Tinnitus is hypothesized to be the result of a prediction error due to deafferentation, and missing input is filled in by the brain.The heuristic explanation then is that in the dream state there is no interaction with the environment and therefore no updating of the prediction error, resulting in the absence of tinnitus.

View Article: PubMed Central - PubMed

Affiliation: Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand ; BRAI²N & TRI, Sint Augustinus Hospital, Antwerp, Belgium.

ABSTRACT
There are pathophysiological, clinical, and treatment analogies between phantom limb pain and phantom sound (i.e., tinnitus). Phantom limb pain commonly is absent in dreams, and the question arises whether this is also the case for tinnitus. A questionnaire was given to 78 consecutive tinnitus patients seen at a specialized tinnitus clinic. Seventy-six patients remembered their dreams and of these 74 claim not to perceive tinnitus during their dreams (97%). This can be most easily explained by a predictive Bayesian brain model. That is, during the awake state the brain constantly makes predictions about the environment. Tinnitus is hypothesized to be the result of a prediction error due to deafferentation, and missing input is filled in by the brain. The heuristic explanation then is that in the dream state there is no interaction with the environment and therefore no updating of the prediction error, resulting in the absence of tinnitus.

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Related in: MedlinePlus

(a) The concept of the predictive brain; (b) the concept of Bayesian updating.
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Related In: Results  -  Collection


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fig1: (a) The concept of the predictive brain; (b) the concept of Bayesian updating.

Mentions: The reason why patients with tinnitus do not perceive tinnitus in their dream state can be theoretically explained by the Bayesian brain model which has been used as an explanation for the development of tinnitus in relation to auditory deafferentation [24]. This Bayesian brain model is founded on an extension of a predictive brain model (see Figure 1(a)).


The enigma of the tinnitus-free dream state in a Bayesian world.

De Ridder D, Joos K, Vanneste S - Neural Plast. (2014)

(a) The concept of the predictive brain; (b) the concept of Bayesian updating.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4109081&req=5

fig1: (a) The concept of the predictive brain; (b) the concept of Bayesian updating.
Mentions: The reason why patients with tinnitus do not perceive tinnitus in their dream state can be theoretically explained by the Bayesian brain model which has been used as an explanation for the development of tinnitus in relation to auditory deafferentation [24]. This Bayesian brain model is founded on an extension of a predictive brain model (see Figure 1(a)).

Bottom Line: That is, during the awake state the brain constantly makes predictions about the environment.Tinnitus is hypothesized to be the result of a prediction error due to deafferentation, and missing input is filled in by the brain.The heuristic explanation then is that in the dream state there is no interaction with the environment and therefore no updating of the prediction error, resulting in the absence of tinnitus.

View Article: PubMed Central - PubMed

Affiliation: Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand ; BRAI²N & TRI, Sint Augustinus Hospital, Antwerp, Belgium.

ABSTRACT
There are pathophysiological, clinical, and treatment analogies between phantom limb pain and phantom sound (i.e., tinnitus). Phantom limb pain commonly is absent in dreams, and the question arises whether this is also the case for tinnitus. A questionnaire was given to 78 consecutive tinnitus patients seen at a specialized tinnitus clinic. Seventy-six patients remembered their dreams and of these 74 claim not to perceive tinnitus during their dreams (97%). This can be most easily explained by a predictive Bayesian brain model. That is, during the awake state the brain constantly makes predictions about the environment. Tinnitus is hypothesized to be the result of a prediction error due to deafferentation, and missing input is filled in by the brain. The heuristic explanation then is that in the dream state there is no interaction with the environment and therefore no updating of the prediction error, resulting in the absence of tinnitus.

Show MeSH
Related in: MedlinePlus