Answer:
The given blank can be filled with borderline personality disorder or BPD.
Step-by-step explanation:
The BPD refers to a mood disorder that affects the manner in which an individual associates with others. It is the most generally known personality disorder. In the condition, an individual may exhibit suicidal behavior, can cause self-injury, and is at risk for eating disorders and substance abuse.
The biological characteristics exhibiting in individual suffering with BPD are increased activation of the amygdala, lower serotonin function, disturbed connectivity between the prefrontal cortex and the amygdala, and low levels of activity in anterior cingulate cortex.