Course outline
Module 1
Module 1: What Makes a Tune Stick
What Makes a Tune Stick
Knowledge check
Q1. Which musical feature is most commonly associated with an earworm that is easy to remember?
- A. A highly complex, irregular rhythm
- B. Simple, predictable melodic contour with small intervals ✓
- C. Frequent key changes throughout the song
- D. Lyrics that contain no repeated words
Why: Earworms tend to use stepwise motion and small melodic intervals, which are easier for the brain to encode and reproduce. Predictable patterns reduce cognitive load while still offering enough variation to hold interest.
Q2. What term describes the psychological phenomenon of a tune repeating involuntarily in your mind?
- A. Auditory priming
- B. Involuntary musical imagery ✓
- C. Sensory adaptation
- D. Acoustic masking
Why: Involuntary musical imagery (INMI) is the research term for earworms. Auditory priming, sensory adaptation, and acoustic masking describe different perceptual processes and do not specifically refer to spontaneously replaying music.
Q3. Which factor has been linked to a higher likelihood of a song becoming an earworm?
- A. The song being unfamiliar and newly heard
- B. The song being familiar and recently heard ✓
- C. The song being played at a very low volume
- D. The song being in a foreign language the listener cannot understand
Why: Familiarity and recent exposure are strong predictors of earworms. When a song has been heard recently, its memory trace is more active, making it more likely to resurface spontaneously in thought.
Q4. Why might an incomplete musical phrase, such as one that ends on an unresolved note, promote an earworm?
- A. It causes hearing damage that the brain tries to repair by replaying the sound
- B. The brain tends to seek closure, so the unresolved phrase keeps replaying until it feels complete ✓
- C. Unresolved notes are always too loud and draw attention
- D. Listeners automatically forget any song that ends without a clear chord
Why: The Zeigarnik-like tendency to remember unfinished tasks applies to music as well. An unresolved melodic or harmonic ending creates a sense of tension, and the mind replays the tune in an attempt to reach resolution.
Q5. Which everyday strategy is often reported as effective for ending an earworm?
- A. Listening to the entire song from start to finish
- B. Thinking about something else or engaging in a demanding mental task ✓
- C. Repeatedly humming the same short phrase aloud
- D. Trying harder to forget the song by concentrating on its melody
Why: Engaging in a demanding cognitive task can interrupt the spontaneous replay of a tune. Deliberately concentrating on the melody tends to reinforce it, while listening to the full song may give the replay more material to sustain it.
Module 2
Module 2: The Brain's Replay Loop
The Brain's Replay Loop
Knowledge check
Q1. What is the common term for a piece of music that gets stuck in your head and replays repeatedly?
- A. A harmonic drift
- B. An earworm ✓
- C. A melodic echo
- D. A tonal loop
Why: The phenomenon is commonly called an earworm, a term borrowed from German (Ohrwurm). It describes involuntary musical imagery that repeats in the mind.
Q2. Which brain process is most closely associated with the replaying of earworms?
- A. Long-term memory consolidation during sleep
- B. Involuntary auditory imagery in the auditory cortex ✓
- C. Visual pattern recognition in the occipital lobe
- D. Motor planning in the cerebellum
Why: Earworms involve involuntary auditory imagery, where the auditory cortex generates a sound-like representation of music without any external input.
Q3. Which type of music is most likely to become an earworm according to research?
- A. Music with highly complex, unpredictable structure
- B. Music with simple, repetitive, or incomplete melodic patterns ✓
- C. Music played at very low volumes
- D. Music with no lyrics and only percussion
Why: Simple, repetitive melodies and tunes with unresolved or incomplete phrases are more likely to loop in the mind, since the brain tries to complete them.
Q4. What is a common way to reduce a persistent earworm?
- A. Ignoring it completely and avoiding all music
- B. Listening to the complete song to give the brain closure ✓
- C. Sleeping for exactly two hours
- D. Repeating the song's lyrics out loud continuously
Why: Hearing the full song can provide the resolution the brain was seeking, often ending the loop. Research suggests this helps more than avoiding the tune, which can sometimes make it stronger.
Q5. Why might a song you recently heard be more likely to become an earworm?
- A. Because recent exposure strengthens its neural representation, making it easier to replay ✓
- B. Because the brain erases older memories to make room for new songs
- C. Because only songs heard before bedtime can loop
- D. Because recently heard songs always have a faster tempo
Why: Recent exposure keeps the song's memory trace active and easily accessible, so the brain is more likely to spontaneously retrieve and replay it.
Module 3
Module 3: Melody, Rhythm, and Repetition
Melody, Rhythm, and Repetition
Knowledge check
Q1. Which musical feature is most often cited as making a melody easy to remember and sing back?
- A. Frequent key changes
- B. Stepwise motion with a small pitch range ✓
- C. Constant use of dissonant intervals
- D. Irregular and unpredictable rhythms
Why: Melodies that move mostly by small steps within a limited pitch range are easier to hold in memory and reproduce, which is a key reason many earworms are built this way.
Q2. What term describes the repetition of a short musical idea, often at a different pitch level, within a song?
- A. Modulation
- B. Syncopation
- C. Motif or riff repetition ✓
- D. Cadence
Why: Repeating a short melodic or rhythmic figure (a motif or riff) gives listeners a recognizable hook that the brain latches onto, strengthening memory for the tune.
Q3. Why does a predictable rhythmic pattern tend to increase how catchy a song feels?
- A. It forces listeners to focus on lyrics
- B. It reduces the cognitive effort needed to track and anticipate the beat ✓
- C. It makes the song sound louder
- D. It removes the need for a melody
Why: When rhythm is regular and predictable, the brain can easily anticipate upcoming beats, which makes the music feel effortless to follow and more likely to get stuck in the mind.
Q4. What is an 'earworm' in the context of music cognition?
- A. A type of insect that lives in recording studios
- B. A piece of music that repeats involuntarily in the mind after hearing it ✓
- C. A rhythm exercise used to train singers
- D. A chord progression that always ends on the tonic
Why: An earworm, also called involuntary musical imagery, is a tune or fragment that keeps replaying in one's head without deliberate effort, often triggered by recent exposure.
Q5. How does repetition contribute to a song becoming an earworm?
- A. Repetition causes listeners to forget the melody faster
- B. Repeated exposure builds familiarity and strengthens the memory trace of the tune ✓
- C. Repetition only matters for lyrics, not melody
- D. Repetition makes the music harder to sing along to
Why: Each repetition strengthens the memory representation of a melody, and familiarity makes the brain more likely to retrieve and replay it spontaneously.
Module 4
Module 4: Earworms and Memory
Earworms and Memory
Knowledge check
Q1. Why are song lyrics and melodies often easier to remember than spoken text?
- A. Music activates only the auditory cortex, which has unlimited storage capacity.
- B. Rhythm, rhyme, and melodic structure provide organized cues that make information easier to encode and retrieve. ✓
- C. Songs are always played more often than speeches, so repetition alone explains the effect.
- D. Music slows the brain down, allowing more time to store each word.
Why: Rhythm, rhyme, and melody give the brain structured patterns and redundant cues, which improve encoding and make retrieval easier. This is why many people learn lyrics more readily than plain prose.
Q2. What is the term for the phenomenon of a short musical fragment getting stuck in your head and replaying involuntarily?
- A. Auditory hallucination
- B. Tinnitus
- C. Earworm (involuntary musical imagery) ✓
- D. Echoic memory
Why: The term 'earworm' describes involuntary musical imagery, where a tune or phrase repeats in the mind. It is a common, usually harmless experience.
Q3. Which type of song is most likely to become an earworm according to research on the topic?
- A. Songs with highly complex, unpredictable melodies
- B. Songs that are slow, quiet, and lack a clear beat
- C. Songs with simple, repetitive, and moderately familiar melodic patterns ✓
- D. Songs in a language the listener does not understand
Why: Research suggests earworms tend to come from tunes that are simple, catchy, repetitive, and familiar enough to be easily recalled, though not so familiar that they are boring.
Q4. Which brain-related factor is most associated with the tendency to experience earworms?
- A. Having a large vocabulary
- B. Being left-handed
- C. Recent exposure to the music and a tendency to be musically engaged or anxious at the time ✓
- D. Having better-than-average eyesight
Why: Recent exposure is one of the strongest predictors of earworms. Mental states such as stress or distraction can also make a tune more likely to pop up, as the mind seeks something to occupy it.
Q5. What is one commonly suggested way to reduce an earworm that is bothering you?
- A. Repeatedly playing the entire song from start to finish
- B. Trying to suppress the tune by thinking about something else entirely
- C. Chewing gum or engaging in a demanding verbal or mental task ✓
- D. Singing the song loudly and out of tune until it stops
Why: Chewing gum and other attention-demanding tasks, especially ones that use the same mental resources as music, can interrupt the looping. Simply playing the full song often reinforces the earworm.
Module 5
Module 5: Why Unfinished Songs Haunt Us
Why Unfinished Songs Haunt Us
Knowledge check
Q1. Which psychological phenomenon describes the tendency to remember unfinished or interrupted tasks better than completed ones?
- A. The Dunning-Kruger effect
- B. The Zeigarnik effect ✓
- C. The Mere exposure effect
- D. The Baader-Meinhof phenomenon
Why: The Zeigarnik effect, named after psychologist Bluma Zeigarnik, shows that people tend to recall unfinished tasks more readily than completed ones, because incomplete goals keep cognitive attention active.
Q2. Why does an unresolved melody often feel like it 'wants' to continue?
- A. Listeners are physically tired of the song
- B. The brain anticipates resolution, and an unfinished phrase creates a predictive tension ✓
- C. The song's volume decreases at the ending
- D. Memory of the song fades within seconds
Why: The brain constantly predicts what comes next in music. When a phrase ends on an unresolved chord or melodic note, the prediction is unfulfilled, creating tension that the mind tries to resolve by replaying the tune.
Q3. In music theory, which type of unresolved sound most commonly drives the desire for completion?
- A. A tonic chord that ends the piece
- B. A dominant chord that has not yet resolved to the tonic ✓
- C. A silent rest at the start of the song
- D. A repeated chorus with identical lyrics
Why: The dominant chord (such as V) creates strong tension that pulls toward the tonic (I). When the resolution is withheld, listeners feel a pull to complete the cadence, which is a key ingredient in earworms.
Q4. What is an 'earworm' in the context of this module?
- A. A parasite that infects the ear canal
- B. A piece of music that involuntarily repeats in the mind after hearing it ✓
- C. A type of hearing loss caused by loud music
- D. A sound effect used in film scores
Why: An earworm, also called involuntary musical imagery, is a catchy tune or fragment that gets stuck in the mind and replays repeatedly, often long after the music has stopped.
Q5. Which factor is most associated with a song becoming a persistent earworm?
- A. Being very long and complex
- B. Having a simple, repetitive melodic fragment with an interval or gap that feels incomplete ✓
- C. Being performed in a foreign language
- D. Lacking any rhythm or beat
Why: Research on earworms suggests that catchy songs tend to have simple, repetitive, memorable melodic hooks, often with an unexpected interval or unfinished gap that prompts the mind to fill in the missing notes.
Module 6
Module 6: Emotion, Mood, and the Catchy Hook
Emotion, Mood, and the Catchy Hook
Knowledge check
Q1. Which musical feature is most often cited as making a melody 'catchy' and easy to remember?
- A. Highly complex chromatic harmony
- B. Simple, stepwise melodic contours with a clear shape ✓
- C. Long passages with no repetition
- D. Atonal pitch arrangements
Why: Simple, stepwise melodies with a clear, memorable contour are easier to encode and recall, which is why they tend to become earworms.
Q2. What is the term for a short, memorable musical phrase that stands out within a song and draws the listener's attention?
- A. Coda
- B. Bridge
- C. Hook ✓
- D. Cadence
Why: A hook is the catchy, repeated musical or lyrical idea designed to grab attention and stick in memory.
Q3. How does repetition contribute to a song becoming an earworm?
- A. It makes the song feel unfamiliar and surprising
- B. It strengthens memory traces through familiarity, making the tune easier to recall involuntarily ✓
- C. It prevents the brain from processing the melody
- D. It shortens the song's emotional impact
Why: Repetition increases familiarity and strengthens memory encoding, so the brain can easily replay the melody without deliberate effort.
Q4. Which emotional state is most associated with songs that people find themselves humming or replaying?
- A. Boredom
- B. Anxiety with no musical outlet
- C. Positive mood or heightened arousal ✓
- D. Complete emotional neutrality
Why: Research suggests that upbeat or emotionally arousing states, and music that matches or lifts mood, are linked to more frequent earworms.
Q5. Why might an unfinished or incomplete musical phrase trigger an earworm?
- A. It satisfies the brain's need for closure, so it is never replayed
- B. It creates an open loop that the mind tries to resolve by replaying the tune ✓
- C. It is always harmonically dissonant
- D. It lowers the listener's attention to the melody
Why: Unresolved musical phrases create a sense of tension that the mind attempts to complete, often by mentally replaying the melody until closure is reached.
Module 7
Module 7: Breaking the Loop: Curing an Earworm
Breaking the Loop: Curing an Earworm
Knowledge check
Q1. What is the common name for the involuntary replaying of a short segment of a song in the mind?
- A. Mental echo
- B. Earworm ✓
- C. Auditory loop
- D. Tune recall
Why: The phenomenon is commonly called an earworm, a term borrowed from German (Ohrwurm). It refers to a tune or fragment that gets stuck and repeats involuntarily in the mind.
Q2. Which type of music is most associated with the formation of earworms?
- A. Music with complex, unpredictable structures
- B. Music with simple, repetitive, and catchy melodies
- C. Music played at very high volumes
- D. Music in unfamiliar languages
Q3. Which strategy is most commonly suggested by researchers for ending an earworm?
- A. Listening to the full original song repeatedly
- B. Actively thinking about the lyrics to finish the song
- C. Engaging in a demanding cognitive task such as solving puzzles or reading ✓
- D. Singing the tune aloud as loudly as possible
Why: Demanding cognitive tasks occupy working memory, which can interrupt the rehearsal loop that sustains an earworm. Simply repeating or singing the song tends to reinforce it.
Q4. Research suggests that earworms are most likely to occur under which condition?
- A. During sustained, focused problem-solving
- B. During periods of low mental engagement, such as routine or idle activities ✓
- C. Immediately after a full night of sleep
- D. When listening to music with headphones
Why: Earworms tend to surface when the mind is under-stimulated, since spare attention allows the internal replay to take hold. Focused tasks tend to suppress them.
Q5. Which of the following is a reason a person might be more prone to a particular earworm?
- A. The song was heard only once and forgotten quickly
- B. The song was recently heard, especially repeatedly or in a relevant context ✓
- C. The song has very few notes and no lyrics
- D. The person has never heard the song before
Why: Recent exposure, especially repeated exposure, makes a tune more accessible in memory and more likely to spontaneously resurface as an earworm.