Richard Restak describes how the brain processes jokes:
All humor involves playing with what linguists call scripts (also referred to as frames). Basically, scripts are hypotheses about the world and how it works based on our previous life experiences. Consider what happens when a friend suggests meeting at a restaurant. Instantaneously our brains configure a scenario involving waiters or waitresses, menus, a sequence of eatables set out in order from appetizer to dessert, followed by a bill and the computation of a tip. This process, highly compressed and applicable to almost any kind of restaurant, works largely outside conscious awareness. And because our scripts are so generalized and compressed, we tend to make unwarranted assumptions based on them. Humor takes advantage of this tendency.
Consider, for example, almost any joke from stand-up comedian Steven Wright, known for his ironic, deadpan delivery:
—I saw a bank that said “24 Hour Banking,” but I didn’t have that much time.
—I bought some batteries, but they weren’t included. So I had to buy them again.
—I washed a sock. Then I put it in the dryer. When I took it out it was gone.
—I went into a store and asked the clerk if there was anything I could put under my coasters. He asked why I wanted to do that. I told him I wanted to make sure my coasters weren’t scratching my table.In each of these examples, everyday activities are given a different spin by forcing the listener to modify standard scripts about them. Indeed, the process of reacting to and appreciating humor begins with the activation of a script in the brain’s temporal lobes. It is the brain’s frontal lobes that make sense of the discrepancy between the script and the situation described by the joke or illustrated by the cartoon.
This ability is unique to our species. Though apes can engage in play and tease each other by initiating false alarm calls accompanied by laughter, they cannot shift back and forth between multiple mental interpretations of a situation. Only we can do this because—thanks to the larger size of our frontal lobes compared with other species—we are the only creatures that possess a highly evolved working memory, which by creating and storing scripts allows us to appreciate sophisticated and subtle forms of humor. Neuroscientists often compare working memory to mental juggling. To appreciate a cartoon or a joke, you have to keep in mind at least two possible scenarios: your initial assumptions, created and stored over a lifetime in the temporal lobes, along with the alternative explanations that are worked out with the aid of the frontal lobes.
Speaking of standup, Patton Oswalt reflected recently on some of its most contentious aspects:
The comedians I’ve known who joke about rape—and genocide, racism, serial killers, drug addiction, and everything else in the Dark Subjects Suitcase—tend to be, internally and in action, anti-violence, anti-bigotry, and decidedly anti-rape. It’s their way—at least, it’s definitely my way—of dealing with the fact that all of this shittiness exists in the world. It’s one of the ways I try to reduce the power and horror those subjects hold for me. And since I’ve been a comedian longer than any of the people who blogged or wrote essays or argued about this, I was secure in thinking my point of view was right. That “rape culture” was an illusion, that the examples of comedians telling “rape jokes” in which the victim was the punchline were exceptions that proved the rule. I’ve never wanted to rape anyone. No one I know has ever expressed a desire to rape anyone. My viewpoint must be right. Right?
I had that same knee-jerk reaction when the whole Daniel Tosh incident went down. Again, only looking at it from my experience. And my experience, as a comedian, made me instantly defend him. I still do, up to a point. Here’s why: He was at an open mic. Trying out a new joke. A joke about rape. A horrible subject but, like with all horrible subjects, the first thing a comedian will subconsciously think is, “Does a funny approach exist with which to approach this topic?” He tried, and it didn’t go well. I’ve done the same thing, with all sorts of topics. Can I examine something that horrifies me and reduce the horror of it with humor? It’s a foolish reflex and all comedians have it.