Answer:
Mood congruency effect
Explanation:
In psychology, the mood congruency effect refers to the phenomenon in which a person tends to remember information that is consistent with their present mood, this way, they tend to recall memories that are similar to the mood they are experiencing at a certain time. (If you are sad you will recall sad memories).
In this example, Jean was extremely happy and as she was celebrating, she recalled other happy memories in her life, thus since the memories she recalled were similar to the mood she was in (happy), we can conclude that her recalling of other happy memories is an example of the mood congruency effect.
