section_path: Psychology and sociology/Neuropsychological perspective
section_name: Neuropsychological perspective
paragraph_text: Neuropsychological perspective
  
  Extension of the stimuli of the fighting reactions: At the beginning of life, the human infant struggles indiscriminately against any restraining force, whether it be another human being or a blanket which confines their movements. There is no inherited susceptibility to social stimuli as distinct from other stimulation, in anger. At a later date the child learns that certain actions, such as striking, scolding, and screaming, are effective toward persons, but not toward things. In adults, though the infantile response is still sometimes seen, the fighting reaction becomes fairly well limited to stimuli whose hurting or restraining influence can be thrown off by physical violence.
  
  Brain regions which are activated when recognizing threat or provocation, and facilitate autonomic arousal and interoception and activate the stress response, are the salience network (dorsal anterior cingulate cortex and anterior insula cortex) and subcortical area (the thalamus, the amygdala, and the brain stem).