CEREBROSPINALECTOMY
Why does a song get stuck in your head? An 'earworm' is your auditory cortex looping a catchy fragment — usually one it never got to finish. Your brain hates a cliffhanger.
Tag whoever just started humming.
EXPLAINED (ACCURACY-CHECKED)
Involuntary musical imagery ('earworms') involves the auditory cortex and phonological loop; unresolved/uncompleted tunes are more likely to recur (a Zeigarnik-like effect).
Established: involuntary musical imagery, auditory cortex/phonological loop, Zeigarnik-like unfinished-loop tendency. Textbook/psych-lit level.
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