If brand building is all about setting up relatable, repeatable patterns that communicate value and relevance, advertising is about breaking all the rules (with authenticity).
I promise it’s not as dry as it sounds, but the key here is expectation violation theory. It’s what happens when you consciously become aware of something, in short, it’s what you notice.
In general, “expectation violations” are defined as events that are incompatible with one’s situation-specific prediction and that should contribute to a change in expectations.
Frontiers Scientific Platform

Every send, our brains receive, interpret and filter huge amounts of information. And, on a very simple level, deem it to be useful or useless. And if it’s useful, it alerts our conscious brain to that particular piece of data.
Expectations and reality
We walk around with certain expectations of how the world around us behaves. That’s how we know that stepping off a really high cliff, or into a really busy road is a bad idea. We don’t have to have experienced it ourselves, or even witnessed someone else doing it.
We’re constantly filling in the gaps. Taking what we know about how things, in our experience, ought to work… and making up the rest! Did you know each of your eyes has a blind spot where your optic nerve attaches to the retina? Here are some fun tests you can do to find your blind spots! When I get a migraine, my brain stops filling in the gaps, and the blind spots become more and more obvious. Strange!
The philosopher Daniel Dennet says that our brains are in essence anticipation machines – that a fundamental aspect of cognition is the necessity of forming expectations, based on direct or indirect experience, for how things are in the world
Faris

So when we’re just going about our business, interpreting all this data, happily filling in all the gaps, and correctly predicting what’s about to happen in our little bubble of a world. We don’t really notice anything. Ever have the feeling of arriving at your destination and having no recollection of how you got there? Not a single expectation was violated. Well done brain, you did it!
When something does violate those little old expectations you can have a positive or negative reaction (that’s called the violation valance, in case you’re interested).
The evaluation of the violation is based upon the relationship between the particular behavior and the valence of the actor.
Wikipedia
Humour and comedy often rely on eliciting a positive valance to an expectation violation. The old set up and punchline is exactly this. The set-up creates the expectation, the punchline violates it, and you (hopefully) have a positive valance – you laugh.
Postal service jokes don’t need much setup
It’s all in the delivery
It’s also the reason that people are right when they say you should under promise and over deliver. When you under promise, you lower expectations, and therefore you elicit a positive valence when you violate that expectation by doing better than expected. Rather than just telling them what you’re going to do, and doing it.
In our System 1 brain (the part that does most of the day to day thinking, and is very instinctual) this is when they wake up the more cognitive System 2 brain to help them out and de-code the message.
Expectation violation and advertising
So what does that all mean for your next advert?
We all know the old AIDA model (attention, interest, decision, action), so something similar. Well, you first need to catch someone’s attention before you can knuckle down to telling them about the awesome benefits of your latest widget.
And this is most effectively done through violating expectations, particularly those around people, and cultural or societal norms. The book Unlocking profitable growth (again, not as dry as it sounds) reccomends a balance of 80% familiarity, with 20% new or innovation.
We have so many demands on our mental processing, that we don’t respond well when our “cognitive load” is stretched. So for advertisers, that means priming our ad to the gills with the familiar (our distinctive assets, our cultural associations, familiar words, images and sounds – things that reinforce our image of the world), and then dropping that attention-grabbing, novelty or innovative moment in.
Innovation wrapped in a cloak of familiarity
For me, one of the adverts that does this best is Always #LikeAGirl campaign. The set-up has a sense of familiarity. It’s playing back to us a truth about the world we live in.
And then it drops a new idea.
That Like A Girl is not an insult. That girls are strong. And brave. And sporty. That with our stereotypes and slurs, we’re harming the girls of the world. Harming people we love.
In the works of Unlocking profitable growth; it is a kernel of novelty combined with extreme familiarity, which is one of their successful advertising combinations.
How can you use expectation violation theory to help improves the effectiveness of your marketing efforts? What brands do you think do this really well?
Be brave.
Feel stupid.






















