Answer:
Brown–Peterson task refers to a cognitive exercise that was developed for testing the limits of working memory capacity.
Using trigrams like "JOE" or "CAT" in this cognitive exercise will be easier to remember because of their "meaning," and "pronounce-ability".
The relationship between percent correct recall and number of seconds of distractor task would increase.
Their trigrams (and the ones used in the demonstration) were a more random arrangement of letters. These factors add to one’s ability to remember material because the words used will not be difficult to remember as they are universal words.