People with intermittent explosive disorder (IED), or impulsive aggression, have a weakened connection between regions of the brain associated with sensory input, language processing and social interaction.
In a new study published in the journal Neuropsychopharmacology, neuroscientists from the University of Chicago show that white matter in a region of the brain called the superior longitudinal fasciculus (SLF) has less integrity and density in people with IED than in healthy individuals and those with other psychiatric disorders. The SLF connects the brain’s frontal lobe—responsible for decision-making, emotion and understanding consequences of actions—with the parietal lobe, which processes language and sensory input.
It's not so much how the brain is structured, but the way these regions are connected to each other.
