Brain imaging studies indicate increased neuronal excitability and decreased density of benzodiazepine receptors in temporal (auditory) cortex but the source and mechanism of such changes are unknown.

• 大脑影像学研究表明(耳鸣患者)颞叶(听觉)皮层神经元兴奋性增高，也存在苯二氮卓受体密度减小，但这种转变的原因和机制未明。