The Precuneus as a Sound-Suppressing Agent in Tinnitus
Source: Wikipedia The precuneus is a region within the parietal lobe of the brain that plays an important role in how our mind functions, including how we become aware of different stimuli—even internal ones, such as tinnitus sounds. This brain region is connected to two neural networks that work in an inverse relationship: the dorsal attention network and the default mode network. When one is active, the other is switched off. Dr. Fatima Husain, who has been studying tinnitus for many years, has proposed the theory that the perception of tinnitus is generated in the precuneus. Based on her research, she discovered that in chronic tinnitus this region tends to connect more strongly with the attention network and less with the default mode network. This helps explain, among other things, why patients remain focused on their tinnitus more than necessary. In her view, many of us—perhaps almost all of us—would perceive tinnitus sounds if it weren’t for the precuneus, which...
