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Combating “The Homer Simpson Effect”

Friday, September 4, 2015
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There really is a "Homer Simpson" effect in neuroscience. The phenomenon was given this name in honor of the Fox network character, Homer Simpson. Homer once told Marge, "Every time I learn something new, it pushes some old stuff out of my brain." 

Who knew Homer was such a brilliant neuroscientist?

The Homer Simpson Effect means that in order to "make room" for new learning, your brain weeds out prior learning. We specifically tend to forget information that is similar to the new information. While more work needs to be done to fully understand the mechanism, it seems that the frontal cortex is sending a signal that inhibits retrieval of prior learning in order to make it easier to encode and retrieve new information. The older information is still there, but it becomes temporarily harder to access, giving the new information a chance to take hold. 

Expect Performance Dips 

This “unlearning to learn” behavior probably helped our ancestors develop increasingly more effective survival strategies, rather than sticking with things we already knew. When you are in the middle of the process, however, it can be just as vexing as it is helpful. 

If you are teaching people a change to an existing process or a new procedure that is similar to, but also different from a previous one, you need to allow some extra time for learners to integrate prior and new learning. If learners need to go back on the job and use both bodies of knowledge, there may be a temporary drop in the performance of the earlier skill while their brains struggle to integrate and also separate the two. 

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An Example from Essentials of Brain-Based Learning 

I observed the Homer Simpson Effect firsthand while teaching a recent session of Essentials of Brain-Based Learning for ATD. My audience was comprised of experienced learning professionals. I knew that many of the adult learning techniques these participants already knew would be seen in a new light by the end of our three sessions together, as seen through the lens of neuroscience. 

However, during the first two weeks of the online workshop, I noticed that most participants tended to question everything they already knew about learning. Their brains were clearing the way for new information to settle in. By our last session they were starting to integrate the new brain-based practices into their existing body of knowledge. 

Minimizing the Homer Simpson Effect 

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If you are teaching a new skill that has similarities to a previously learned skill, here are a few things to keep in mind:


  • Tell your participants to expect some unlearning to occur. If they are aware of the Homer Simpson Effect, they will be better prepared to select which parts of the old learning will still be useful.
     
  • Link the new information to previous learning, so participants can more easily locate those suppressed neural pathways to the earlier skill. For example, if you are teaching a new software application that has similarities to an application that your learners already know, comparing and contrasting the two skills can help learners incorporate the new concepts without completely throwing out the old ones. 

In Essentials of Brain-Based Learning, I was aware that the Homer Simpson effect might apply, so I built in many references to instructional design before we knew how the brain learns. Some of those earlier techniques are still quite relevant, while others need to be replaced by more recent findings. 
It’s funny how our brains work. Just because I’m aware of certain revelations coming out of neuroscience doesn’t mean that my brain is any smarter. I recently learned how to use Adobe FrameMaker to fulfill a client's request for a technical manual. After working on that project for several weeks, I found myself staring blankly at a blank screen in Microsoft Word, unable to remember where to begin to write a new document. 

Doh!

About the Author

Margie Meacham, “The Brain Lady,” is a scholar-practitioner in the field of education and learning and president of LearningToGo. She specializes in practical applications for neuroscience to enhance learning and performance. Meacham’s clients include businesses, schools, and universities. She writes a popular blog for the Association of Talent Development and has published two books, Brain Matters: How to Help Anyone Learn Anything Using Neuroscience and The Genius Button: Using Neuroscience to Bring Out Your Inner Genius.

She first became interested in the brain when she went with undiagnosed dyslexia as a child. Although she struggled in the early grades, she eventually taught herself how to overcome the challenge of a slight learning disability and became her high school valedictorian, graduated magna cum laude from Centenary University, and earned her master’s degree in education from Capella University with a 4.0.

Meacham started her professional career in high-tech sales, and when she was promoted to director of training, she discovered her passion for teaching and helping people learn. She became one of the first corporate trainers to use video conferencing and e-learning and started her own consulting company from there. Today she consults for many organizations, helping them design learning experiences that will form new neural connections and marry neuroscience theory with practice.

“I believe we are on the verge of so many wonderful discoveries about how we learn. Understanding what happens in the brain is making us better leaders, teachers, parents, and employees. We have no limits to what we can accomplish with our wonderful brains— the best survival machines ever built.”
—Margie Meacham

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