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Washington State University


Rats may seek cannabis to cope with stress

A recent study published in Neuropsychopharmacology found that rats with higher natural stress levels are more likely to self-administer cannabis. The study also identified links between stress hormone levels and cognitive flexibility, suggesting potential early markers for problematic drug use patterns.

SourceWashington State University·JournalNeuropsychopharmacology·TypeExperimental study·DateDec 11, 2025

During times of market volatility, investors should track insider trades

Researchers found that corporate insiders' trading patterns provided excellent forecasts of future stock performance during the Covid-19 pandemic. Insiders bought undervalued stocks and sold overvalued ones, which predicted market activity. This study highlights the importance of insider trading in times of unprecedented uncertainty.

SourceWashington State University·JournalPacific-Basin Finance Journal·TypeData/statistical analysis·DateDec 3, 2025

Sensors could help reduce fatal racehorse injuries by 20%

Researchers developed a wearable sensor to track thoroughbred horse movements and identify risk factors for catastrophic injury. The study found that horses with high risk scores were 44 times more likely to suffer fatal injuries, and implementing the technology could reduce fatal injury rates by nearly 20%.

SourceWashington State University·JournalJournal of the American Veterinary Medical Association·TypeObservational study·DateNov 21, 2025

Study questions water safety beliefs

A Washington State University-led study in Guatemala found that community perceptions of water safety often do not align with actual water quality. Bottled water was found to be the most frequently contaminated source, with only 17% meeting World Health Organization standards.

SourceWashington State University·JournalJournal of Water and Health·TypeSurvey·DateNov 19, 2025

Helping farmers, boosting biofuels

A WSU-led study has discovered two promising cover crops that can be sold as a biofuel source and won't harm the soil. Triticale and hairy vetch showed promising results in Western and Central Washington fields, providing stable yields at low costs while adding nitrogen to the soil.

SourceWashington State University·JournalBiomass and Bioenergy·TypeExperimental study·DateOct 16, 2025

Early planting to avoid heat doesn’t match current spring wheat production

Researchers at Washington State University found that early planting to avoid heat damage may actually hinder spring wheat productivity due to other growth issues. The study used computer modeling to show that moving crop plantings earlier in the season can expose crops to elevated heat or cold stress in later growth stages.

SourceWashington State University·JournalCommunications Earth & Environment·TypeComputational simulation/modeling·DateOct 9, 2025

When politics drives entrepreneurial innovation

A new WSU study found that in India's Great Indian Demonetization, political identity played a significant role in shaping entrepreneurial responses. Lower-income entrepreneurs often adopted out of necessity, while those aligned with the ruling party quickly embraced digital payments due to perceived credibility and consistency with th...

SourceWashington State University·JournalJournal of Business Venturing Insights·TypeCase study·DateSep 16, 2025

Researchers design robot that can find, pick hidden strawberries

A Washington State University-led team has designed a robotic harvester that can detect and classify hidden strawberries 80% of the time. The harvester uses a combination of artificial-intelligence vision system, soft silicone grippers, and a fan to gently move leaves out of the way, improving picking efficiency.

SourceWashington State University·JournalComputers and Electronics in Agriculture·TypeExperimental study·DateSep 4, 2025

Study finds gaps in books on consent education for children

A study by Washington State University researchers analyzed over 100 picture books for children ages 3-8 and found gaps in teaching concepts of consent. While many books conveyed important messages like bodily autonomy and boundary-setting, they fell short on specific anatomical terms, trusted adults, and empowering language.

SourceWashington State University·JournalJournal of Children and Media·TypeContent analysis·DateAug 4, 2025

WSU study provides detailed look at the declining groundwater in regional aquifer system

A new study by Washington State University researchers reveals declining groundwater levels across Eastern Washington's complex aquifer system, threatening its sustainability. The study measures the water accessible to current wells and highlights areas of greatest concern, such as the Odessa region and Yakima Basin.

SourceWashington State University·JournalGroundwater for Sustainable Development·TypeData/statistical analysis·DateJul 9, 2025

Bacteria hijack tick cell defenses to spread disease

Researchers at Washington State University discovered how bacteria hijack cellular processes in ticks to ensure their survival and spread to new hosts, including humans. By manipulating the ATF6 protein, the bacteria exploit the tick's natural process of producing cholesterol, which is essential for bacterial growth and survival.

SourceWashington State University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJun 30, 2025

Researchers recreate ancient Egyptian blues

A team of researchers from Washington State University has recreated the world's oldest synthetic pigment, Egyptian blue, used in ancient Egypt around 5,000 years ago. By studying the pigments' properties and variability, they have gained insights into how it was made and its potential applications.

SourceWashington State University·Journalnpj Heritage Science·TypeExperimental study·DateJun 2, 2025

Study: Emotional responses crucial to attitudes about self-driving cars

A new study from Washington State University examines the role of emotional responses in shaping public attitudes toward self-driving cars. Researchers found that feelings of excitement and curiosity, as well as beliefs in technology's social benefits, play a significant role in determining whether people would adopt autonomous vehicles.

SourceWashington State University·JournalTransportation Research·TypeSurvey·DateMay 27, 2025

Microwave technologies give hummus longer shelf life, eliminate preservatives

Washington State University researchers used microwave technology to create shelf-stable hummus without chemical preservatives. Lentil-based hummus retained 75% of vitamin C after treatment, offering a healthier alternative. The innovative process allows for predictable and rapid heating of pre-packaged food.

SourceWashington State University·JournalJournal of Food Process Engineering·TypeExperimental study·DateMay 22, 2025

Emotional expressions shape how help is received in the workplace

New research from Washington State University finds that helpers' emotional expressions can influence whether their assistance is welcomed or resentful. Helpers who express emotions like gratitude and sympathy are more likely to foster trust and future collaboration, while those who display pride or contempt have their motives questioned.

SourceWashington State University·JournalAcademy of Management Journal·TypeExperimental study·DateMay 21, 2025

Wild spinach offers path to breed disease resistance into cultivated varieties

Researchers at Washington State University identified several wild spinach varieties with resistance to Fusarium wilt, a persistent problem for commercial spinach seed growers. These findings can be used to breed hardier crops through marker-assisted selection, providing a tool for immediate application in breeding programs.

SourceWashington State University·JournalScientific Reports·TypeExperimental study·DateMay 20, 2025