What is the Mere Exposure Effect?

Every business wants to stay top of mind with their customers. If you are, when the moment comes to buy, you’re the first place they visit. But even if you’re pouring millions of dollars into advertising, getting noticed isn’t easy.

In a 2004 study by Yankelovich Partners, researchers estimated the average customer saw up to 5,000 ads a day. Compare that with the 1970s, when a person only saw about 500 advertisements every day. Given the amount of information people are exposed to, how can your brand break through this noise?

But there's a behavioral science principle that can give you an edge - it’s called the Mere Exposure Effect.

What is the Mere Exposure Effect? 

Coined in the 1960s by social psychologist Robert Zajonc, the Mere Exposure effect is a principle that states when people are familiar with something, they prefer it. And given a choice of two options, they’ll prefer the one they’ve been repeatedly exposed to (even if it’s lower quality).

For example, a 2012 study of the Eurovision song contest discovered an interesting connection. The number of times an audience saw a contestant correlated with how many votes the contestant received.

Kyiv, Ukraine - May 09, 2017: Eurovision Song Contest 2017 in Ukraine, first semifinal, Monatik

It didn’t matter if the contestant wasn’t a great performer. As long as they were seen more by the audience, the contestant received more overall votes. Familiarity breeds affection for whatever act you're watching. 

Just like the Eurovision voters, customers prefer something the more they see it. And the more they prefer something, the more likely they are to buy it. 

The Mere Exposure Effect in the Real World

This all sounds fascinating, but what - according to the current research - does science say that Mere Exposure Effect can actually do? Here are a few examples: 

1. “Mere Exposure” can drive desire for our product or experience

The Mere-Exposure effect can be a powerful marketing tool, but not in the way you’d expect. According to Zajonc, the effect can take place subliminally, and that’s when it’s most effective. (source) In other words, marketing doesn’t have to be noticed to have a powerful effect on a customer’s behavior — just being exposed to it is enough.

For example, researchers at Princeton University published a study in which they added a subliminal message to an episode of The Simpsons. The team inserted 12 frames of the word “thirsty” and 12 frames of a Coca-Cola can.

KHARKIV, UKRAINE - DECEMBER 16, 2021: Coca Cola production with classic company logo. Coca-Cola is a carbonated soft drink sold in stores, throughout the world.

Their subjects couldn’t guess what had been added since the frames went by too quickly for people to notice. But people rated themselves 27% thirstier after watching the show. 

2. “Mere Exposure” can drive customer preference

In 2005, a research team at Utrecht University discovered that subliminal messages not only drive customer need but can also drive preference. Research exposed subjects to subliminal images of Lipton Iced Tea. They found people were then more likely to chose Lipton when presented with a choice of drinks. (source)

The takeaway? In marketing channels like out of home, video, social media and TV, you can influence a "need state". If your marketing creates a strong connection through brand assets like colors, taglines, and logos, customers will start to associate their need (thirsty) with your brand (Lipton Iced Tea).

How to use the Mere Exposure Effect Stay Top of Mind

There are two guiding principles to keep in mind when using Mere Exposure to your advantage:

  1. Experiences need to be single-minded and consistent, to create customer memories. Focused creative needs to work in such a way that simply being exposed to the images drives a connection between a customer’s need state (thirsty) and the product (Coke).

  2. For Mere Exposure to work, there must be consistency and simplicity. Having too many variations of creative elements can undermine your experience. Not only does it waste budget, but it can actually work against you in the long run.

Ways to Apply the Mere Exposure Effect to Your Experience

If you want to apply the Mere Exposure Effect but aren't sure how it might work for you, here are a few real-world examples of how to use it: 

  • Deploy suggestion engines that show more of the same brand’s customers have already shown an interest in.
  • Use standard conventions when designing digital experiences. When the experience is already familiar, customers are more likely to prefer it.
  • Create "drip campaigns" that use a consistent message to improve familiarity with your brand.
  • Align your content calendars across channels and vary the core message and visuals as little as possible. You’ll still have to customize the message in each channel. But creating a consistent experience is vital for Mere Exposure to take hold.

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The Bottom Line

In the end, customers trust what they already know. Getting them to know you takes time, money, and consistency in message. Ask yourself, is my business sending a consistent message in our marketing and customer experience? If not, how can we simplify and focus our experience, to take full advantage of the Mere Exposure Effect?

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About Jen Clinehens
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Welcome to Choice Hacking! 
My name is Jen, I'm the founder and managing director of Choice Hacking.  I've spent my career perfecting omni-channel customer experiences for brands like AT&T, McDonalds, Adidas and more using the power of behavioral science, psychology, and AI. 

Now I spend my time writing case studies and creating courses to help others supercharge their work with science.

My team and I also love helping brands solve their biggest marketing and experience challenges - if that sounds like you, please get in touch to learn more.