sentence: This is consistent with neuroimaging results showing that false alarm responses on auditory signal detection tasks are associated with over-activation of the STG , above and beyond that seen when participants correctly report hearing a voice ( Barkus et al ., 2007 ) , and crucially provides evidence that this cortical area is causally involved in false alarm responses.In signal detection terminology , as a result of the stimulation condition we observed a change approaching significance in response bias , where participants were more willing to respond that a voice was present when stimulation to increase the excitability of pSTG was applied .