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The role of the superior temporal lobe in auditory false perceptions : a transcranial direct current stimulation study.

Moseley, P. and Fernyhough, C. and Ellison, A. (2014) 'The role of the superior temporal lobe in auditory false perceptions : a transcranial direct current stimulation study.', Neuropsychologia., 62 . pp. 202-208.


Neuroimaging has shown that a network of cortical areas, which includes the superior temporal gyrus, is active during auditory verbal hallucinations (AVHs). In the present study, healthy, non-hallucinating participants (N=30) completed an auditory signal detection task, in which participants were required to detect a voice in short bursts of white noise, with the variable of interest being the rate of false auditory verbal perceptions. This paradigm was coupled with transcranial direct current stimulation, a noninvasive brain stimulation technique, to test the involvement of the left posterior superior temporal gyrus in the creation of auditory false perceptions. The results showed that increasing the levels of excitability in this region led to a higher rate of ‘false alarm’ responses than when levels of excitability were decreased, with false alarm responses under a sham stimulation condition lying at a mid-point between anodal and cathodal stimulation conditions. There were also corresponding changes in signal detection parameters. These results are discussed in terms of prominent cognitive neuroscientific theories of AVHs, and potential future directions for research are outlined.

Item Type:Article
Keywords:Auditory verbal hallucinations, Signal detection, Superior temporal gyrus, tDCS.
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Publisher statement:© 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (
Date accepted:28 July 2014
Date deposited:09 December 2014
Date of first online publication:10 August 2014
Date first made open access:No date available

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