Folks from completely different cultural backgrounds seem like ticklish in remarkably comparable methods, in keeping with a brand new examine that implies the feeling is extra complicated than beforehand thought.
The examine, revealed within the journal on August 10, 2026, surveyed 448 folks from Chinese language, Dutch and Greek backgrounds. Researchers Ziliang Xiong and Konstantina Kilteni, from the Donders Institute at Radboud College, labored with Karolinska Institutet to look at how folks expertise tickling, who tickles them and which elements of the physique are most ticklish.
They discovered that tickling was frequent throughout all three teams. Greater than 95 per cent of contributors had both been tickled or had tickled another person, suggesting that tickling behaviour is widespread.
Throughout the teams, folks reported comparable reactions. Most stated they laughed when tickled and have been often tickled by members of the family or associates. Throughout childhood, folks have been extra usually tickled by somebody older than themselves, whereas in maturity, tickling by folks of the identical age grew to become extra frequent.
However laughter didn’t essentially imply enjoyment. Throughout childhood, 42 per cent of contributors stated they loved being tickled, in contrast with 35 per cent as adults. Greater than 1 / 4 described being tickled as disagreeable, whereas many adults stated they felt impartial about it.
The researchers additionally requested contributors to color physique diagrams exhibiting the place they felt most ticklish. The ensuing physique maps have been strikingly comparable throughout cultures. The armpits, soles of the ft, stomach and sides of the torso constantly emerged as essentially the most ticklish areas.
The examine examined a number of long-standing explanations for why some physique elements are extra ticklish than others, together with theories linked to pores and skin thickness, contact sensitivity, vulnerability and pleasure. The researchers discovered that none of those explanations totally matched the info.
For instance, essentially the most ticklish areas weren’t these with the thinnest pores and skin, such because the lips or eyelids. Nor have been they merely the areas most delicate to peculiar contact, or these the place contact is often skilled as most enjoyable.
The strongest help was discovered for Charles Darwin’s concept that physique elements touched much less usually are typically extra ticklish. The researchers stated hardly ever touched areas might produce a stronger shock response when contact happens.
However the examine additionally discovered that no single concept may totally clarify ticklishness. As a substitute, the feeling seems to rely upon a mixture of social, sensory and physiological elements.
The researchers are actually finding out ticklishness in a laboratory, the place a robotic gadget tickles contributors’ ft beneath managed circumstances. They are saying understanding how the mind generates ticklishness may assist clarify how contact, emotion, social behaviour and evolution work collectively.
