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There is evidence that a preference for things that sound “familiar” is a product of our neurology. Scientists have examined people’s brains as they listen to music, and have tracked which neural regions are involved in comprehending aural stimuli. Listening to music activates numerous areas of the brain, including the auditory cortex, the thalamus, and the superior parietal cortex. These same areas are also associated with pattern recognition and helping the brain decide which inputs to pay attention to and which to ignore.
Scientists at MIT discovered that behavioral habits prevent us from becoming overwhelmed by the endless decisions we would otherwise have to make each day, listening habits exist because, without them, it would be impossible to determine if we should concentrate on our child’s voice, the coach’s whistle, or the noise from a busy street during a Saturday soccer game.
Listening habits allow us to unconsciously separate important noises from those that can be ignored. That’s why songs that sound “familiar”—even if you’ve never heard them before— are sticky. Our brains are designed to prefer auditory patterns that seem similar to what we’ve already heard. Much of the time, we don’t actually choose if we like or dislike a song. It would take too much mental effort. Instead, we react to the cues (“This sounds like all the other songs I’ve ever liked”) and rewards (“It’s fun to hum along!”) and without thinking, we either start singing, or reach over and change the station.
“Soldiers were more likely to eat food, whether familiar or unfamiliar, when it was prepared similar to their prior experiences and served in a familiar fashion.”
