Web Design for Short-Term Memory Limitations

When creating a website, keep in mind that the human brain is not optimized for abstract thinking and memorization; therefore, your design should be optimized instead for the benefit of short-term memory, not to display abstract features and bits of information. Doing the latter only further impedes a person’s already weak short-term memory bank.

The reason our brains seem to be so weak in recalling heaps of data is because many of the skills of memory involved in using a computer were not necessary for survival throughout our ancestry. Our ancestral environment did not demand the skills of remembering obscure codes and interpreting abbreviated data in order to survive. The human brain is the same that it was when cavemen roamed the earth. So, in essence, it would not be a bad idea to design your website for a caveman to ensure a web design optimized for short-term memory and consequently a favorable user experience.

Our extremely limited brainpower allows our short-term memory to only hold about seven chunks of information that begin to fade from the brain in about twenty seconds. This is a commonly cited capacity of our brain when relating to abstract thinking. With this fresh in our short-term memory, let us consider other Web design guidelines that our brainpower limitations dictate:

• Response times: In another article, we discussed the importance of shortened response times and, essentially, speedy page loading/service on sites. Response times need to be fast enough so that users don’t forget what it is they are doing while waiting for the next page to load. There is nothing more frustrating than having to click back to a page to remind yourself of what your purpose was and risk forgetting again upon return due to a slow-loading page.
• A website design error that irks just about anybody is not changing the color of visited links so that users can keep track of which sites they have already visited. You can imagine how frustrating it would be to revisit a page you had already been to, especially if you are also dealing with the above-mentioned problem.
• If your site offers a variety of related products, aim at making it easy to compare them. Highlight the important product features and differences and do so in a special comparison view format. This is the preferred method of product comparison. Avoid making customers go back and forth between pages to compare product features.
• Offering help and user assistance features in the context where users need them is also beneficial to the user’s experience. This will prevent them from having to travel to a separate help section, where they would have to waste previous short-term memory capacity memorizing steps before returning to the problem they encountered.

So when it comes down to it, designing a website for a 2010 audience should not result in a website that the brain of a caveman would not understand, since both audiences share the same limited brain capacity.