Brain Sci. 2013, 3(2), 642-669; doi:10.3390/brainsci3020642
Review

Mechanisms Underlying Auditory Hallucinations—Understanding Perception without Stimulus

1,2,* email and 1,3
Received: 21 March 2013; in revised form: 7 April 2013 / Accepted: 18 April 2013 / Published: 26 April 2013
(This article belongs to the Special Issue Brain and Language)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Auditory verbal hallucinations (AVH) are a common phenomenon, occurring in the “healthy” population as well as in several mental illnesses, most notably schizophrenia. Current thinking supports a spectrum conceptualisation of AVH: several neurocognitive hypotheses of AVH have been proposed, including the “feed-forward” model of failure to provide appropriate information to somatosensory cortices so that stimuli appear unbidden, and an “aberrant memory model” implicating deficient memory processes. Neuroimaging and connectivity studies are in broad agreement with these with a general dysconnectivity between frontotemporal regions involved in language, memory and salience properties. Disappointingly many AVH remain resistant to standard treatments and persist for many years. There is a need to develop novel therapies to augment existing pharmacological and psychological therapies: transcranial magnetic stimulation has emerged as a potential treatment, though more recent clinical data has been less encouraging. Our understanding of AVH remains incomplete though much progress has been made in recent years. We herein provide a broad overview and review of this.
Keywords: auditory hallucinations; neurocognitive; connectivity; fMRI
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MDPI and ACS Style

Tracy, D.K.; Shergill, S.S. Mechanisms Underlying Auditory Hallucinations—Understanding Perception without Stimulus. Brain Sci. 2013, 3, 642-669.

AMA Style

Tracy DK, Shergill SS. Mechanisms Underlying Auditory Hallucinations—Understanding Perception without Stimulus. Brain Sciences. 2013; 3(2):642-669.

Chicago/Turabian Style

Tracy, Derek K.; Shergill, Sukhwinder S. 2013. "Mechanisms Underlying Auditory Hallucinations—Understanding Perception without Stimulus." Brain Sci. 3, no. 2: 642-669.

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