Question

Astrid was emotionally aroused by a tv horror movie. she became extremely angry when her younger brother momentarily blocked her view of the screen. when her movie viewing was interrupted by a phone call from her boyfriend, however, she experienced unusually intense romantic feelings. astrid's different emotional reactions to her brother and her boyfriend are best explained by the

Answer 1

The difference in emotional reaction could be explained by Schachter two-factor theory; labeling emotion to the event
When Astrid is watching the horror movie, the emotional arousal would induce the production of adrenaline within her body, which create a sense of excitement.
When the boyfriend called under this circumstances, she will associate that sense of excitement toward the existence of the boyfriend that could be interpreted as love.