Voice hearing (VH) is prevalent in trauma-related disorders, with 65 women studied revealing significant neural insights. VH severity positively correlated with functional connectivity between the left lateral superior temporal gyrus and the frontoparietal network, indicating enhanced auditory processing linked to higher cognitive functions. Conversely, a negative correlation was found with the default mode network's connectivity. These findings highlight distinct auditory cortical alterations in individuals with childhood trauma, suggesting unique mechanisms for VH in trauma-related disorders compared to schizophrenia.
Auditory hallucinations affect 60-80% of schizophrenia patients and often resist antipsychotic treatment. This randomized, sham-controlled trial tested whether real-time fMRI neurofeedback targeting the superior temporal gyrus, combined with mindfulness meditation, produces specific neural changes beyond placebo. Twenty-three adults with medication-resistant hallucinations practiced mindfulness meditation while receiving neurofeedback from either the superior temporal gyrus or motor cortex. Both groups reported reduced hallucinations after neurofeedback, with no group differences in symptom reduction. However, real neurofeedback produced greater reductions in secondary auditory cortex activation and connectivity between auditory cortex and cognitive control regions (dorsolateral prefrontal cortex and anterior cingulate), which persisted in a crossover condition. Mindfulness meditation independently reduced primary auditory cortex activation. Region-specific neurofeedback targeting modulates auditory-cognitive control networks, potentially restoring the balance between bottom-up sensory processing and top-down control.