Unless the speaker is very engaging and active with their listeners, it is very easy for the listener to get distracted. Our minds race at 1,000 thoughts per second and when listening to lengthy talks or speeches, it is very easy for us to wonder away mentally. Physically is is also very easy, as the listener can get distracted from the environment, speakers attire, etc.
You should use aka or “also known as"
exclusively for people who have other names that are not commonly known. On the
other hand, APA addresses format not style. I am hoping that this
answer has satisfied your query and it will be able to help you in your
endeavor, and if you would like, feel free to ask another question.