As we prepare to enforce a new cell phone policy at my school, I have been trying to convince my students that there is a reason that we cracking down on texting/facebooking/instagramming during class. The current research on multitasking is just the thing I was looking for. Scientists at Stanford University are discovering that the brain is actually incapable of focusing on more than one task at a time. (I am totally paraphrasing!) The brain
IS capable of "task-switching" at incredibly high rates of speed. So quickly in fact that it feels like both tasks are happening simultaneously. To test/illustrate this concept I had my students participate in the activity described in this
article.
As I timed them, students wrote the entire alphabet and then the numbers 1 - 26. Focusing on one task at a time. Next they practiced task-switching. Starting with the letter A, followed by the number 1, they alternated letters and numbers ending with the pair Z 26. The vast majority of students had a drastically slower time the second round, with many students reporting mistakes that they would never have made in the first round, skipping or repeating letters or numbers.
This ended up being a great way to illustrate the way that mutltitasking decreases accuracy and efficiency. I continued the conversation discussing the idea that listening to music while you work does NOT help you focus... it just makes it more enjoyable. I love music and frequently listen to music while I work, but I can't deny that I get my work done more quickly when I turn off the music, TV, cell phone, etc.
I think they bought it...
https://www.psychologytoday.com/blog/creativity-without-borders/201405/the-myth-multitasking
http://www.npr.org/2013/05/10/182861382/the-myth-of-multitasking