Headlines like “Is Google Making Us Stupid?” or “Is the Internet Making Us Dumber?” quite clearly show that people are concerned about what the Internet is doing to our cognition. Some have speculated that the Internet has become a kind of external hard drive for our brains, eliminating our need to really learn or process information. Others point to the obvious advantages of having more information available to more people than at any other time in history. As our lives become increasingly wired, we are now stepping back to see just how deep down the connections go.

As we currently understand it, our brains operate in two distinct modes of thinking when processing information:

Our heuristic thinking is characterized as a rough and ready approximator relying on basic cues. Being that this style of thought is cognitively less costly, it is our default, applying stereotypes, models, and gut-reactions to the processing of information. Conversely, our systematic thinking is an in-depth look at the evidence where we internalize information and connect it to other ideas.

The trigger to transition between styles in this dual-process cognition is partially dependent on the sufficiency principle. Generally, when making a decision, we weigh how much we know against how much we need to know to make a confident judgment about a topic. If this gap between what we know and what we need to know is small, heuristic-style thinking is more likely. Conversely, if there is a large gap, we need to expend more mental resources to close it, thus encouraging systematic thinking. This Scrooge-like mental calculus determines how much we process the information we are inundated with everyday. And we readily recognize this game of cognitive economy, especially when browsing the web. For example, going through a stuffed RSS feed can be a fairly disengaged experience, with only the topics that are interesting, confusing, or contentious garnering real attention. This “surf or stay” mentality is easily grafted onto the HSM.

The author argues that when it comes to cognition, it is unfair and inappropriate to treat the internet differently from any other mediums:

Where I think many of the “the Internet is making us stupid” claims get it wrong is that these detractions also apply to other mediums. The Internet is young and revolutionary, to be sure, but the brains we explore it with are the same that peruse the sports section or catch up on the Colbert Report. It should stand to reason that our theories of information processing, like the HSM, should then apply to this new medium. Rather than call a change in processing strategies a “dumbing down” of the populous, we should be just as willing to first understand without judgment how we think on the Internet as we do with newspapers and television.

So, the internet is merely the latest in a long line of information sources that have been processed by human brains.

Research into how we process information on the Internet is in its infancy, simultaneously announcing a grand ignorance and inspiring novel ideas. The meticulous plod of science in the Internet age is reminiscent of the tortoise and the hare, yet there seems to be no better way to win the race than to look at digital culture with our emerging tools which investigate cognition. I’d speculate more about how the Internet has changed our information processing strategies, but I have 500+ RSS items to get through…