Answer:
Abby is displaying symptoms of blunted or flat affect.
Step-by-step explanation:
Emotional blunting or flat affect is a psychiatric disorder which makes a person to lack reactions and emote with a blunt, flat or no emotion. They lack any visual or verbal expression of their emotion and just show a flat expression even to things which normally brings a lot of emotion.
Normally if a person watches a video of the pain and sufferings of the soldiers during a war, he/she will become very sad and depressive and will emote the same.
Since Abby has a blunted affect, she is not able to feel anything after watching a war video. This condition is associated with other major psychiatric illness like autism, schizophrenia etc.