Study locates brain areas for understanding metaphors in healthy and schizophrenic people -- ScienceDailyThey found that compared to controls, the patient group showed increased brain activity in certain areas, but lower brain activity in others. For example, the healthy group showed brain activation in the prefrontal cortex (near the front of the brain) and left amygdala (at the centre of the brain, near the top of the brain stem), implying that these are the brain areas where metaphors are normally processed. Instead, schizophrenia patients showed a decreased activation in the temporal suculus (an area ascending from the low central brain towards the back of the head). Researcher Martin Jáni, from the Jagiellonian University, Krakow, Poland said: "Previous researchers studied brain areas that are connected to impaired metaphor understanding in schizophrenia, so comparing metaphors with literal statements. However, by adding the absurd punchline, we were able to explore the stage at which the deficit occurs. We also used everyday metaphors, which would be easily understood.