Scientists have uncovered a mysterious network of brain connections that is linked to ... schizophrenia, bipolar disorder, depression, addiction, OCD and anxiety — that share this underlying circuitry... Some "nodes" in the circuit have been linked to psychiatric disorders in the past, while others...are instead linked to key aspects of cognitive function, like selective attention and sensory processing... The team pinpointed brain regions where gray matter had atrophied, or shrunk, in the context of psychiatric disorders. [T]he disorders still had something in common: the tangled network of wires that runs between all these pockets of atrophy in the brain. The...