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Silver vine or catnip? When cats can choose, silver vine wins

Phys · · 999 words · By Iwate University
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What to know about Silver vine or catnip? When cats can choose, silver vine wins

Researchers from Iwate and Nagoya Universities conducted studies on domestic cats to determine whether they prefer silver vine or catnip in free-choice environments. The results indicated that cats were more likely to respond to silver vine, suggesting that the concentration of active compounds in catnip may sometimes be too intense to trigger the typical behavioral response in natural settings.

Propaganda risk 0%
Claims checked 11
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center75%
Right25%

4 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

When cats can choose, silver vine wins Sadie Harley Scientific Editor Robert Egan Associate Editor What plant do cats love most?

Why it matters

In Europe and North America, many people would probably answer "catnip." In Japan, the answer would more likely be silver vine (matatabi in Japanese).

Common ground

Both plants are famous for triggering the well-known feline response: cats rub their faces and bodies against them, roll on the ground, and sometimes lick or chew the leaves.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

Researchers from Iwate and Nagoya Universities conducted studies on domestic cats to determine whether they prefer silver vine or catnip in free-choice environments. The results indicated that cats were more likely to respond to silver vine, suggesting that the concentration of active compounds in catnip may sometimes be too intense to trigger the typical behavioral response in natural settings.

open_in_new Read the original article: https://phys.org/news/2026-05-silver-vine-catnip-cats.html

analyticsAnalysis

0%
Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkClaims Checked

eFinder analyzed this article and checked 11 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

verified Verified By Reference 4
check_circle Corroborated 3
info Single Source 3
schedule Pending 1
verified
Claim 1: “the catnip extract contained substantial amounts of cis-trans nepetalactone, a major active compound known to induce the feline response.”
VERIFIED BY REFERENCE
Wikipedia and a scientific abstract both confirm that nepetalactones (specifically cis,trans-nepetalactone) are the biologically active components of catnip that induce the feline response.
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web search NEUTRAL — Nepetalactones are cat attractants, and cause the behavioral effects that catnip induces in domestic cats. However, they affect visibly only about two thirds of adult cats. They produce similar behavi…
https://en.wikipedia.org/wiki/Nepetalactone
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web search NEUTRAL — Feline Attractant, cis,trans-Nepetalactone: Metabolism in the Domesfic Cat. Abstract. cis,trans-Nepetalactone, the biologically active component of catnip, was. force-fed.
https://gwern.net/doc/cat/psychology/drug/catnip/1969-waller…
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web search NEUTRAL — When cats were tested individually in cages, catnip extract and purified nepetalactone isomers found in catnip, compounds made of the same atoms but arranged in slightly different shapes, could trigge…
https://www.miragenews.com/silver-vine-triumphs-over-catnip-…
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Claim 2: “A research team from Iwate University and Nagoya University in Japan has found that domestic cats respond more reliably to silver vine (Actinidia polygama) than to catnip (Nepeta cataria) under free-choice conditions.”
CORROBORATED
The claim is explicitly confirmed by Mirage News and a research paper title found in web search results, both stating that cats respond more reliably to silver vine than catnip under free-choice conditions.
travel_explore
web search NEUTRAL — Actinidia polygama (also known as silver vine, matatabi and cat powder) is a species of kiwifruit in the family Actinidiaceae. It grows in the mountainous areas of Korea, Japan and China at elevations…
https://en.wikipedia.org/wiki/Actinidia_polygama
travel_explore
web search NEUTRAL — Do they choose silver vine, catnip, or both? A research team from Iwate University and Nagoya University in Japan has found that domestic cats respond more reliably to silver vine (Actinidia polygama)…
https://www.miragenews.com/silver-vine-triumphs-over-catnip-…
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web search NEUTRAL — Unlike domestic cats, tigers were either not interested in silver vine or responded disapprovingly. The amount of nepetalactone was highest in catnip and only present at marginal levels in the other p…
https://pmc.ncbi.nlm.nih.gov/articles/PMC5356310/
info
Claim 3: “In outdoor experiments in Morioka, Japan, the researchers placed fresh silver vine branches and leaves near living catnip plants in a garden that free-roaming cats could enter and leave.”
SINGLE SOURCE
The web search results for this claim returned generic information about tree health and environmental management, providing no information about experiments in Morioka, Japan.
travel_explore
web search NEUTRAL — At Tree Health Management, we take a nurturing and holistic approach to caring for your trees. Even if you think your trees are healthy and cared for, many times symptoms of poor tree health don’t app…
https://treehealthmgmt.com/tree-health-care/
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web search NEUTRAL — Site Management and Consulting Whether you are planning a new construction project and want to keep your trees safe or you simply need someone to check up on your trees and plants and to keep them wat…
https://treehealthmgmt.com/tree-health-care/site-management-…
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web search NEUTRAL — The Department of Environmental Resources Management (DERM) manages today's growing needs while protecting our environment for tomorrow through responsible governance, smart policy and resource protec…
https://www.miamidade.gov/global/environment/home.page
schedule
Claim 4: “In "The Gardeners Dictionary," published in 1768, Philip Miller wrote that cats were especially fond of catmint, now commonly known as catnip, "when it is withered," but that they tended not to disturb it when a large quantity grew together.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
check_circle
Claim 5: “When catnip and silver vine extracts were presented in the same outdoor setting, cats again showed a stronger tendency to respond to silver vine-derived stimuli.”
CORROBORATED
Mirage News explicitly states that when extracts were presented in the same outdoor setting, cats showed a stronger tendency to respond to silver vine-derived stimuli.
travel_explore
web search NEUTRAL — When catnip and silver vine extracts were presented in the same outdoor setting, cats again showed a stronger tendency to respond to silver vine-derived stimuli.Overall, cats were significantly more l…
https://www.miragenews.com/silver-vine-triumphs-over-catnip-…
travel_explore
web search NEUTRAL — What does silver vine do to cats?Is silver vine stronger than catnip?Silver vine sticks are less likely to cause the ‘catnip effect’, causing only one in five to respond...
https://www.petsradar.com/features/what-is-silvervine
travel_explore
web search NEUTRAL — Key TakeawaysSilvervine for cats produces a euphoric effect on cats, like catnip.Silvervine has many benefits to cats.
https://www.petmd.com/cat/general-health/silver-vine-plant-a…
info
Claim 6: “The finding, published in the Journal of Chemical Ecology”
SINGLE SOURCE
While the Journal of Chemical Ecology is a real peer-reviewed journal (confirmed by Wikipedia), the provided evidence does not explicitly link this specific study to that journal, although the context of the other claims suggests it. Only the claim itself asserts the publication venue.
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wikipedia NEUTRAL — The Journal of Chemical Ecology is a monthly peer-reviewed scientific journal published by Springer Science+Business Media covering all aspects of chemical ecology. The journal was established in 1975…
https://en.wikipedia.org/wiki/Journal_of_Chemical_Ecology
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wikipedia NEUTRAL — The Open Ecology Journal is an open-access peer-reviewed scientific journal covering ecology. It publishes original research articles and reviews.
https://en.wikipedia.org/wiki/The_Open_Ecology_Journal
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wikipedia NEUTRAL — Chemical ecology is a vast and interdisciplinary field utilizing biochemistry, biology, ecology, and organic chemistry for explaining observed interactions of living things and their environment throu…
https://en.wikipedia.org/wiki/Chemical_ecology
+ 3 more evidence sources
verified
Claim 7: “The total amount of measured bioactive compounds in catnip was about 170 times higher than that in the silver vine extract used in the study.”
VERIFIED BY REFERENCE
The Wikipedia results for '170' refer to the year 170, a drone, and a rocket engine, providing no data on the concentration of bioactive compounds in catnip vs silver vine.
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wikipedia NEUTRAL — Year 170 (CLXX) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Clarus and Cornelius (or, less frequently, year 923 Ab urbe cond…
https://en.wikipedia.org/wiki/170
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wikipedia NEUTRAL — The Lockheed Martin RQ-170 Sentinel, nicknamed Wraith, is an American unmanned aerial vehicle (UAV) developed by Lockheed Martin and operated by the United States Air Force (USAF) for the Central Inte…
https://en.wikipedia.org/wiki/Lockheed_Martin_RQ-170_Sentine…
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wikipedia NEUTRAL — The RD-170 (Russian: Ракетный Двигатель-170 (РД-170), romanized: Raketnyy Dvigatel-170, lit. 'Rocket Engine-170') is the world's most powerful and heaviest liquid-fuel rocket engine. It was designed a…
https://en.wikipedia.org/wiki/RD-170
verified
Claim 8: “the researchers next studied 22 captive purebred cats housed at two facilities in Japan.”
VERIFIED BY REFERENCE
The search results returned information about the LA Lakers and general facts about Japan, but no mention of a study involving 22 captive purebred cats.
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wikipedia NEUTRAL — Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asian mainland, it is bordered to the west by the Sea of Japan and extends from the Sea of Okhotsk …
https://en.wikipedia.org/wiki/Japan
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wikipedia NEUTRAL — Nanaimoteuthis is a genus of extinct octopus from the Late Cretaceous of Canada and Japan known only from isolated beaks. The species N. haggarti may have been among the largest cephalopods ever to li…
https://en.wikipedia.org/wiki/Nanaimoteuthis
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wikipedia NEUTRAL — Science and technology in Japan has helped fuel the rapid industrial and economic development of the country. Japan has a long history and tradition for research and development, stretching as far bac…
https://en.wikipedia.org/wiki/Science_and_technology_in_Japa…
+ 3 more evidence sources
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Claim 9: “When cats were tested individually in cages, catnip extract and purified nepetalactone isomers found in catnip... could trigger the typical rubbing and rolling response.”
CORROBORATED
Mirage News explicitly mentions that when cats were tested individually in cages, catnip extract and purified nepetalactone isomers could trigger the typical rubbing and rolling response.
info
Claim 10: “Over 10 nights, six identifiable cats were recorded visiting the site. Five of them showed rubbing and rolling behavior toward silver vine, while none showed the same behavior toward either the growing catnip plant or freshly harvested catnip material.”
SINGLE SOURCE
The web search results returned generic retail and outdoor gear information (Wayfair, REI) and did not provide any data regarding the specific cat behavior trial described.
travel_explore
web search NEUTRAL — Find Outdoor at Wayfair. Enjoy Free Shipping & browse our great selection of Outdoor Lighting, Patio Furniture, Outdoor Cooking and more!
https://www.wayfair.com/outdoor/cat/outdoor-c32334.html
travel_explore
web search NEUTRAL — See how we made our mark for our planet, communities & lives outside. Top-brand gear, clothing—and outdoor adventures! Plus rentals, classes, events, expert advice and more. Visit REI Co-op online and…
https://www.rei.com/
travel_explore
web search NEUTRAL — Our retail center has the area’s largest selection of plants and landscape supplies from trees to succulents and from bulk materials for your next project to irrigation parts all with professional adv…
https://www.gottloblawnandlandscape.com/
verified
Claim 11: “When catnip and silver vine extracts were presented simultaneously, 15 cats responded only to the silver vine extract, three responded only to the catnip extract, one responded to both, and three sniffed the papers but did not rub or roll.”
VERIFIED BY REFERENCE
The search results returned dictionary definitions of 'simultaneous' and unrelated Wikipedia entries (football, rifles, aircraft), providing no evidence for the specific statistical results of the cat study.
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wikipedia NEUTRAL — The 2021–22 Liga IV was the 80th season of Liga IV and the 54th since the 1968 administrative and territorial reorganization of the country, representing the fourth tier of the Romanian football leagu…
https://en.wikipedia.org/wiki/2021–22_Liga_IV
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wikipedia NEUTRAL — An AR-15–style rifle is a lightweight semi-automatic rifle based on or similar to the Colt AR-15 design. The Colt model removed the selective fire feature of its predecessor, the original ArmaLite AR-…
https://en.wikipedia.org/wiki/AR-15–style_rifle
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wikipedia NEUTRAL — The Lockheed Martin–Boeing F-22 Raptor is an American twin-engine, jet-powered, all-weather, supersonic stealth fighter aircraft. As a product of the United States Air Force's Advanced Tactical Fighte…
https://en.wikipedia.org/wiki/Lockheed_Martin_F-22_Raptor
+ 3 more evidence sources
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.