Do humans and monkeys listen to the world in the same way?

Have you ever wondered how the brain makes sense of the sounds we hear—speech, music, or everyday noises? My latest review paper looks at a simple but important question: do humans and monkeys listen to the world in the same way?

It turns out they don’t.

Humans tend to combine and interpret sound over slightly longer periods of time, while monkeys rely more on short, quick snapshots of sound. These “listening windows” shape how each species understands the acoustic world. Humans, for example, benefit from longer windows because speech unfolds over hundreds of milliseconds and relies on patterns that stretch across time.

The review brings together many studies using brain scans, electrical recordings, and computer models. When you compare all the evidence, a clear pattern appears: the architecture of the human auditory brain has evolved to integrate sound over longer timescales than that of macaques or marmosets. This difference likely helped support the emergence of speech and other complex communication abilities in humans.

In short: human brains listen in longer, more flexible chunks, while monkey brains listen in faster, more immediate slices. Understanding these differences helps us learn not only how the brain processes sound, but also how evolution shaped our ability to communicate.

Reference:

[1] Pradeep D, Christopher I Petkov, Adrian Rees, Timothy D Griffiths, "Evidence for evolutionary divergence in temporal integration windows between human and monkey auditory cortex", Hearing Research,  vol. 469. pp. 109489, Jan 2026 (pdf)