Answer: BIS ,avoid dating
Step-by-step explanation:
Behavioral avoidance system (BIS)is the system in which mind tends to produced aversive thought of moving away or getting apart from something bad or undesired. They tend to get apart from unpleasantness present in that factor.
According to the question,BIS is active due to functioning of right hemisphere's lobes in Heidi's mind as she is not interested in interacting with the next participant .Thus, she will avoid dating due to unpleasantness or undesired factor from other participants.