RAPPERS BRAIN IN FLOW???

Ever wonder what a rapper's brain in flow is like? A recent scientific video has shed light on that very concept, revealing that rap artists may have an ability to let go of a certain part of their cognitive function. While the study doesn't give rappers any extra credit for being more intelligent than others, it does indicate that they have special creative abilities inside their brains.
As reported on Dec. 29 by Softpedia.com, rappers apparently have the ability to "let go of cognitive control and attention." With that they focus more on "self-reflection and morality." These abilities give many rappers the ability to flow in a creative manner off the top of the head, bringing clever wordplay and human experiences together into their lyrics.
The scientific video shows off the concept here, as the narrator notes "creativity is a tough nut to crack." A comparison is made to examining someone's brain who has arachnophobia, a fear of spiders, after that person has been shown a spider. However, it's a "rapper's flow" that seems to provide some insight into the topic of creativity.
Specialists have noted that "freestyle rapping is one amazing opportunity to catch a glimpse of the neuroscience of creativity and come to a more thorough understanding of the human brain." There may be many non-rap or hip-hop fans who disagree with that notion though, as debates continue to rage over who is skilled at rapping and who is not. It's believed some rap stars may be way too simple-minded in terms of what they speak on their records, and others have no ability to change up their concepts.
So, let the debates begin about the best rapper's brain in flow mode. Which current hip-hop star has the best flow ability? Is it a current hip hop heavyweight like Jay-Z, Kendrick Lamar, or Nas, or an underground rap star who has the best abilities in that department?