Imagine you're fishing for carp, but you bait your hook with an artificial fly for trout. You'll sit all day without a catch and conclude there are no fish in the lake. In reality, the problem isn't the lake—it's your bait. In neuromarketing, the stimulus is your "bait for the brain." And the correctness of this bait determines all your conclusions. Classic Mistake: A company tests a beautiful product banner on a white background.
Reality: This banner will be shown in an Instagram feed among cat pictures, memes, and friends' posts.
Result: Eye-tracking shows long fixations on the product. You rejoice. You launch the campaign... and it fails. Why? Because you didn't test for attention competitiveness. Your stimulus was a "ghost" in the sterile conditions of a lab. The Takeaway: The stimulus must exist within the same visual noise as in real life. The Mistake: Giving participants the task: "Evaluate the usability of our banking app's interface."
The Problem: The participant's brain throw