The Reminiscence Bump: Why the Songs of Your Teens Stay With You

Play a few runs of any song guessing game and a pattern shows up quickly: what decides your score, more than anything, is often the year the song came out. A track from when they were fifteen arrives in a tenth of a second. A bigger hit from ten years later stays a stranger however long they listen.

That is not a quirk of taste. It is one of the most studied patterns in the psychology of memory, and it shapes every round of Guess the Song, whose library runs from 1980 to now. Here is what the research says about it, and how to use it.

Ask adults to recall memories from across their lives and the memories do not spread evenly. There is a clear surplus from adolescence and early adulthood, roughly from age 10 to 30, compared with the years either side. Psychologists call this the reminiscence bump, and it has turned up in study after study for decades.

It shows up in more than personal events. When people are asked for their favourite books, films and records, their answers cluster around the same years of their lives. Music is one of the clearest cases.

In 1989 Morris Holbrook and Robert Schindler asked people of a wide range of ages to rate songs that had been popular at different times, and then looked at how old each listener had been when each song was a hit (Journal of Consumer Research, 1989). Preferences peaked for songs that came out when the listener was about 23 and a half, and fell away for songs from much earlier or much later in their lives.

Later studies have pulled the peak younger. A 2013 replication by Jan Hemming found it in the late teens. The exact age moves with the study, but the shape holds: a hump somewhere between the early teens and the mid-twenties.

If memory for music were only about your own youth, nobody under thirty would know a song from the 1980s. Plenty do, and a 2013 study explains why.

Carol Krumhansl and Justin Zupnick at Cornell played 62 college students two of the biggest Billboard hits from every year from 1955 to 2009 and asked them about each one: did they know it, did they like it, did it bring back a memory (Psychological Science, 2013). As expected, the students knew and loved recent songs best. The surprise was a second, large bump for songs from the early 1980s, when their parents would have been about 20 to 25. The students recognised those songs, rated them highly, liked them and attached memories to them, as if they had been young then themselves.

There was a smaller bump still for the 1960s. The authors suggested, as a possibility rather than a finding, that it might have been passed down from the students' grandparents. They called the pattern "cascading reminiscence bumps": the music of one generation's youth is played in the next generation's childhood, and memory keeps it.

Nobody has settled exactly why the bump exists. Researchers have offered several explanations, which are not mutually exclusive, and for music a plainer one sits beside them.

• Firsts and novelty. The teens and twenties are full of first times, and new experiences are processed more richly and remembered better. A song you heard during your first summer job is filed with more around it than a song from an ordinary week twenty years later.
• Identity. Adolescence is when people work out who they are, and music is part of how they do it. Memories bound up with that sense of self get revisited and rehearsed for life.
• A brain at its peak. Some researchers point to memory itself being at its strongest across those years.
• Repetition. This one is simply how listening works at that age. Teenagers often play the same records over and over, on purpose, and in childhood you hear whatever plays at home, again and again, with no choice in the matter.

For song guessing, repetition matters most. Naming a song from a fraction of a second works by matching the sound of one specific recording against a memory of it, and that memory is built by hearing the record many times. In one well-known study, listeners matched clips of a tenth or two tenths of a second to the right song, choosing among five songs that had been chart hits in the months before. The details are in how fast you can recognize a song.

So the reminiscence bump is not just a matter of nostalgia. The years of your life when you heard the same records hundreds of times are the years whose records you can name from almost nothing.

There is a second gap inside the bump. Recognising that a song is familiar and pulling its title out of memory are separate tasks, and the second fails more often than you might expect. Songs from your parents' record collection are a classic case: you know every note, you could sing the chorus, and you never once saw the title written down.

In a game, that is where the search box helps. If the voice is familiar but the title will not come, type the artist and read their songs. Reading a list turns the job back into recognition, which memory is much better at.

Guess the Song deals each run's five songs from the most streamed to the less familiar, but it knows nothing about your age. Where the library's years line up with your bumps, a run feels easy; where they do not, it feels unfair. Use that.

1. Find your bump. Set the years in Run options to a range around your teens and play a few runs. Then try the years your parents were young. If the research holds for you, both will beat the decades in between. The library starts in 1980, so if your parents were young before then, try its earliest years.
2. Practise the gaps. The decades you score worst in are usually ones you were too young or too busy for, not ones you are bad at. Set the years there for a while and the songs start to stick. Switch Hits only off when you want the deeper cuts of a period.
3. Expect the era before the title. Even for songs you cannot name, the production often tells you the decade, and narrowing the decade is half the work.

The bump also explains why a family round of music questions can feel lopsided: everyone is strongest in a different stretch of years. In Guess the Song's live rooms, where everyone hears the same clip at once, that becomes part of the fun. A room on all years gives each generation its moments, and a room set to one decade hands the advantage to whoever was young then. Our guide to playing a music quiz with friends explains how to set one up.

Take two runs back to back. For the first, set the years to the stretch when you were about fifteen. For the second, set them to the decade your parents were in their twenties. Open Guess the Song, compare the two scores, and see how much of your music memory came to you second-hand.