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Fearful Cats May Share a Shyness Pattern Seen in Babies
In A Nutshell
- Researchers tested whether cats show baby-like shyness, torn between retreating and approaching.
- Their main prediction failed, but shyness and fear rose together closely.
- One group of male cats combined high fear with moderate willingness to approach people.
- Findings come from owner surveys and need confirmation through direct observation.
A stranger walks through the door and the cat bolts under the couch. A few minutes later, that same cat creeps back out, inches closer, and stares. It looks terrified, yet it cannot seem to stay away. A new survey study proposes that this push and pull may reflect a more complicated kind of shyness, one that resembles a pattern scientists have already documented in human babies.
Researchers at Kyoto University and Sophia University in Japan set out to test whether cats experience shyness the way infants do, as a tug-of-war between wanting to retreat and wanting to get closer. The team adapted questionnaires built to measure temperament in infants and gave them to cat owners.
Their main prediction failed. Still, sorting male cats by their combined scores produced four personality types, and one group was both highly fearful and fairly willing to approach people. The authors call it a “human infant-like shyness” type. Published in PLOS One, the work offers a fresh way to think about what makes a cat tick, though the groupings are early findings, not firm conclusions. Understanding each cat’s fear level, the paper says, could help shelters and owners tailor surroundings.
Cat Shyness Was Measured With Surveys Built for Babies
Shyness in people is not simply fear wearing a different name. An earlier experiment with babies 7 to 13 months old showed that shyness around unfamiliar adults can mix a desire to approach with a desire to withdraw. Animal research rarely drew that line. Shyness in species from fish to dogs has mostly been treated as timidity, the opposite of boldness.
Cats looked like a good test case for mixed feelings. They have lived alongside humans for roughly 10,000 years, yet their breeding has historically involved limited human control, and they show less social behavior than dogs.
Owners completed the surveys in 2024, the first recruiting through social media, and all three were limited to women ages 20 to 50. All cats were neutered and between 1 and 7 years old, and most in the first two surveys were mixed breed. Owners rated their own cats on statements adapted from those questionnaires. A line about a child quickly becoming friendly with other children, for example, became a line about a cat quickly warming up to familiar people. Other statements included “My cat tends to be shy.” Separate scales captured fear and approach, meaning eagerness to move toward people and new things.
Researchers predicted a pattern borrowed from the baby research. If cats mirrored infants, approach scores would run high at both very low and very high shyness and dip in between.
Cat Shyness Tracked Fear Closely in Two Surveys
Three surveys covered 82, 114, and 114 cats. In the first, shyness and fear scores rose together, but the expected approach pattern never appeared. A hint that male cats might behave differently led to a second survey of 114 male cats, which found the same thing: shy cats were fearful cats, and shyer cats, if anything, approached people slightly less.
Some Fearful Cats Scored as Willing to Approach People
Instead of testing a single formula, the researchers sorted cats by their combined scores, producing four groups in the second survey. Two groups were low in fear, one eager to approach people and one moderately so. A third was plainly fearful, scoring high on fear and low on approach. The fourth and largest, with 48 of the 114 cats, paired high fear with the same middling urge to approach people as the moderately sociable cats, resembling the conflicted shyness seen in babies. That could look like a cat that retreats from a visitor, keeps watching, and gradually edges closer.
Cats born as strays made up about half of that fourth group, but they were also about 4 in 10 of all the cats surveyed, and the difference in birth backgrounds across the groups was too small to rule out chance. A third survey of 114 stray-born male cats found the same four groups, yet only 35 landed in the high-fear, high-approach group, fewer than the researchers expected.
Time With Owners Was Not Linked to Less Fear
Researchers checked whether living with people softened the pattern. Among the stray-born cats, time in an owner’s care ranged from six months to nearly seven years, and it was not significantly linked to how fearful or approachable a cat was. Because the survey compared different cats at one point in time rather than following individual cats, it cannot show whether any single cat’s personality changes after adoption.
A cat that creeps back toward a stranger while looking terrified may be showing a personality that mixes fear with a desire to explore, not simple timidity. Owners and shelters that read every hiding cat as plainly scared could be missing part of the picture. A cat like that might do best when allowed to come forward on its own schedule, an untested idea, and confirming any of this will take direct observation of cats rather than owner surveys alone.
Paper Notes
Limitations
The study relied on owner-reported questionnaires rather than direct observation or genetic testing, so scores reflect how owners interpreted their cats’ behavior, not what the cats felt. The questionnaires were built for human infants and young children, and the authors state that adapting them for cats does not prove they measure equivalent traits. The four personality groups came from exploratory cluster analyses, and because shyness and fear scores were so strongly linked, using both together may have shaped the groupings. The group labeled high approach scored about 4.7 out of 7 on approach, nearly identical to the group labeled moderate approach (about 4.6), so the label reflects relative standing rather than strong approach behavior. Birth background came from owner reports and may be imprecise, and 45 of the 114 cats in the second survey had unknown backgrounds. The surveys compared different cats at one point in time, so they cannot show whether individual cats change. Participants were women ages 20 to 50, with the first survey recruited through social media, and all cats were neutered and 1 to 7 years old, which may limit how far the results apply. The male-only follow-up rested on a small first sample of 44 male cats with low statistical power.
Funding and Disclosures
The study was financially supported by JST SPRING (JPMJSP2110, awarded to Madoka Hattori), the Japanese Society of Feline Medicine (awarded to Madoka Hattori), JSPS KAKENHI (24h02200, awarded to Shinya Yamamoto), and JST FOREST (JPMJFR221I, awarded to Shinya Yamamoto). The authors declared that no competing interests exist.
Publication Details
Title: “Exploration of complex shyness and the relationship between fear and approach behaviors in domestic cats (Felis catus).” Authors: Madoka Hattori (Institute for the Future of Human Society, Kyoto University), Atsuko Saito (Department of Psychology, Faculty of Human Sciences, Sophia University), and Shinya Yamamoto (Institute for the Future of Human Society and Graduate School of Science, Kyoto University). Journal: PLOS One, volume 21, issue 11, article e0360035. Editor: Brittany N. Florkiewicz, Lyon College. Received June 11, 2026; accepted September 22, 2026; published November 4, 2026. Open access under a Creative Commons Attribution License. Citation: Hattori M, Saito A, Yamamoto S (2026) Exploration of complex shyness and the relationship between fear and approach behaviors in domestic cats (Felis catus). PLoS One 21(11): e0360035. DOI: https://doi.org/10.1371/journal.pone.0360035







