Are Machine's Making Us Stupid?

Here's the poster that my colleague made for our NEH funded spring course  (since it's a new class we need to do a little advertising around campus to make sure students know about it ):

Following the pop culture reference, and the fact that we anticipate some interesting cross-generational conversations in the class, what would the appropriate iconography be if the poster had depicted an x-ray of Bart's brain, rather than Homer's?