Neuromarketing on Websites: What Actually Works and What’s a Myth

Neuromarketing is the study of how people react to advertising, products and interfaces using neuroscience methods: eye tracking and measurements of brain activity, heart rate, skin response and facial expressions. The goal is to understand what a person feels and pays attention to, even when they can’t explain it themselves.

Most of the “neuromarketing techniques for websites” you’ll find online don’t actually come from neuroscience but from behavioural economics and usability research. That’s not a bad thing: some of them are well tested. The trouble is that they travel alongside myths with no evidence at all. Below we sort out what really works on a website, what doesn’t, and how to test it on yours.

What neuromarketing is and how it’s researched

Classic market research asks people: “What did you like?” The problem is that people don’t always know why they choose what they choose, and often answer the way they think is right. Neuromarketing tries to get around that and measure the reaction directly.

This kind of research is expensive and needs a lab, so it’s commissioned by large brands. For an ordinary website there are affordable substitutes: heatmaps and session recordings show where visitors look and click, and tests with a handful of people show where they get confused. More on that in our article on the website UX audit.

What actually works on a website

1. People don’t read a page, they scan it

Nielsen Norman Group’s eye-tracking studies showed that on a page without a clear structure, people read in an F-shaped pattern: the top lines, the start of the following paragraphs, the left edge. The rest of the text goes unnoticed.

The takeaway isn’t to “design for the letter F” but to make scanning easy: the main point in the heading and the first sentence of each paragraph, subheadings that say what the block is about, important words at the start of the line, lists instead of solid text. How to do that is covered in our article on website content creation.

2. Social proof

When people are unsure about a choice, they look at what others choose. On a website that means reviews, case studies, client logos, the number of projects. The effect is well measured: according to the Spiegel Research Center at Northwestern University, a product with five reviews is 270% more likely to be bought than a product with none. After that, each new review adds less and less.

Only genuine social proof works: reviews with names, specifics and links to independent platforms. Template reviews like “Everything was great, highly recommend! — Helen” are more likely to reduce trust.

3. Price anchoring

The first number a person sees becomes the reference point for everything after it. This effect was described by psychologists Amos Tversky and Daniel Kahneman in their classic 1974 paper in Science. On websites it shows up most often in pricing tables: next to a more expensive plan, the middle one looks like the sensible choice.

The honest use is to show real options with different scope, so people compare what they get for their money. The dishonest use is a made-up “old price” crossed out next to the “sale price”. How to present prices so people trust them is covered in our article on how much a website costs.

4. Fewer decisions at each step

Every extra menu item, option or form field is one more decision to make. The more options, the longer people take to choose, and sometimes they put the decision off entirely. On a website that means one main action per screen, a clear menu and a minimum of required form fields.

But this principle is often overstated. The famous “jam experiment” (Iyengar and Lepper, 2000), in which people bought less often from a display of 24 jams than from one of 6, has not always replicated. A 2010 meta-analysis of 50 experiments found that on average the “choice overload” effect is close to zero and depends heavily on circumstances. So “fewer options is always better” isn’t a law. The real rule is different: choosing should be easy, and the options should differ clearly.

5. Framing affects decisions

“95% of our clients continue working with us” and “5% of our clients leave” are the same fact, but they’re perceived differently. This is the framing effect, also from Tversky and Kahneman’s research. On your website, phrase benefits in terms of what the person gets, and back them up with numbers that can be checked.

6. Visual hierarchy

The eye notices large, contrasting and isolated elements first. If everything on the first screen is equally bright, nothing stands out. The main heading and one main button should be the most noticeable, and everything else shouldn’t compete with them. It’s a basic design principle, and it’s clearly visible in heatmaps.

Myths not worth applying

Colour psychology: “a red button boosts conversion”

Stories like “we changed the button from green to red and sales went up 21%” are very popular, but they’re results of individual tests on individual sites. They don’t transfer to other sites. There’s no universal “colour of trust” or “colour of buying”: what a colour means depends on culture, brand, context and what surrounds it. Popular figures like “90% of decisions are made based on colour” have no reliable source.

What really matters is contrast. The button should stand out from the page, and text should be easy to read. A button’s colour matters only as far as it makes it noticeable among the other elements.

“The human attention span is 8 seconds, shorter than a goldfish’s”

Leading media outlets repeated this figure, but its origin was never found in any study; the BBC looked into it in detail. People are perfectly capable of reading for a long time when something is interesting and useful to them. The problem isn’t short attention but pages that don’t let people quickly tell whether they’re worth the time.

“Neuromarketing makes people buy”

No technique will make someone buy something they don’t need. Neuromarketing and behavioural economics help remove friction and present an offer clearly. They don’t make up for a weak product, an inflated price or distrust of the company.

Where influence ends and manipulation begins

There’s a fine line between “making a choice easy” and “nudging people into a choice they’ll regret”. Techniques to avoid:

• fake “offer ends in 10 minutes” timers that restart the countdown;
• made-up “only 2 spots left” or “14 people are viewing this item right now”;
• pre-ticked paid options that you have to find and untick;
• an opt-out button with text like “No, I don’t want to save money”;
• making it hard to unsubscribe or cancel a subscription.

These techniques are called dark patterns. They can give a short spike in conversion, but they destroy trust. For online platforms serving users in the EU, they are directly restricted by the Digital Services Act (Article 25). If you sell in the EU, keep this in mind at the design stage, along with the other requirements for a multilingual website for the EU and US.

How to test what works on your website

No principle from any article, this one included, guarantees results on your site. Test it:

1. Look at heatmaps and session recordings. Do people notice the main button, how far do they scroll, where do they stop?
2. Run a test with five people. Give them a task and watch in silence: it’s the cheapest “neuromarketing” available to anyone.
3. Change one element at a time and compare conversion before and after. If you have enough traffic, run an A/B test, where two versions of a page are shown to different visitors at the same time.
4. Count enquiries, not clicks. The button that gets more clicks doesn’t always bring more customers. To see the full path, enquiries need to reach your CRM; more on that in our article on website CRM integration.

The best “neuromarketing” for a company website is a clear offer on the first screen, honest prices, real reviews and case studies, and a simple path to an enquiry. Everything else is fine-tuning on top of that.