Answer:
cocktail party
Step-by-step explanation:
Cocktail party effect: In psychology, the term cocktail party effect is considered to as a phenomenon in which an individual's brain capacity to focus on his or her auditory attention based on a specific stimulus and therefore filtering out or ignoring other stimuli present.
Example: A woman who is in a party focuses on a conversation she is having with her friend while ignoring other's conversation being in a noisy place.
In the question above, the given statement focuses on the cocktail party phenomenon.