A new study suggests that a video game designed to raise teens' awareness of mental health issues can reduce symptoms of depression on par with in-school programs. The game, PlaySmart, was played by 269 students for up to six weeks, with significant reductions in symptoms reported after only six weeks.
Researchers have developed an AI tool that can detect online propaganda in Kinyarwanda, a Bantu language spoken by 350 million Africans. The dataset, called KinyaProp, provides examples of misinformation in Kinyarwanda for large language models to learn from and recognize.
A new study reveals widespread damage to Syria's archaeological sites due to looting and bulldozing, particularly in areas occupied by the Turkish military. The researchers used satellite imagery to analyze 200 sites across Syria, finding that 59% were affected since 2015.
A Dartmouth study reveals that people's gaze patterns in new environments contain unique personality preferences. The researchers used eye-tracking data to model individual gaze patterns and create machine-learning models that could distinguish between participants based on their conceptual themes.
A large-scale study of an online patient portal shows that AI-generated responses can introduce errors and extraneous details, leading to increased editing time for physicians. Adapting AI to individual physician communication styles can improve accuracy by 33% and reduce editing by 26%.
Researchers found that octopuses can use mirrors to find food out of sight, displaying spatial cognitive abilities. The study shows that octopuses traveled to the correct side approximately 73% of the time when searching for a reward.
A Dartmouth study maps the interplay of personal choice and social networks contributing to the US being one of the world's most heavily armed countries. The researchers describe how individual incentives can lead to overarming, a phenomenon where collective costs outweigh individual benefits of firearm ownership.
A new study published in the Journal of Anthropological Archaeology provides physical evidence of Peruvian hairless dogs from the Wari Empire site of Castillo de Huarmey. The site, located on the Pacific coast of northern Peru, yielded dog skeletal remains that were analyzed using standard zooarchaeological methods and isotopic analysis.
A study by Dartmouth researchers shows that annual rainfall is increasingly concentrated into bigger and wetter storms with longer dry periods in between. This means less water is available for land, soil can only absorb so much at once, and what's not soaked up evaporates more readily.
Researchers at Dartmouth College developed a mathematical framework to map students' conceptual knowledge from short multiple-choice quizzes, revealing peaks of mastery and valleys of struggle. The technique could enable personalized learning, AI tutoring systems, and more efficient feedback.
A new study from Dartmouth College finds that social information can significantly impact how people experience negative events, including physical pain and mentally demanding tasks. When others describe an experience as painful, individuals tend to feel it that way, even when the actual experience is low in intensity.
A Dartmouth study challenges the conventional view of the amygdala as a primitive 'fear center' by revealing its role in mediating between competing learning strategies. The research suggests that the amygdala favors action-based learning, promoting exploration and flexibility to overcome fear.
A Dartmouth study found that plasmids can form tight clusters within bacterial communities, making them resistant to antibiotics and clinical treatments. This phenomenon introduces a new avenue for bacterial infections to become more difficult to treat.
A Dartmouth study identifies a novel target for using psilocybin to treat depression and anxiety without hallucinations. The serotonin 1B receptor is found to promote the therapeutic benefits of psilocybin, providing a potential new approach for developing safer and more cost-efficient medications.
A new study reveals AI can corrupt public opinion surveys at scale, passing quality checks and flipping predicted outcomes with fake responses. The findings have significant implications for scientific research and policy-making, highlighting the need for transparency and verification of human participation.
A Dartmouth study finds that AI-powered chatbots can deliver personalized learning to large numbers of students. The researchers created an AI teaching assistant called NeuroBot TA that provides around-the-clock individualized support for students, which they found to be more trusted than general chatbots.
A Dartmouth study found that national security officials are overwhelmingly overconfident, consistently misjudging the uncertainty of current and future states. Brief training can mitigate this bias, reducing overconfidence and promoting accuracy.
A Dartmouth study found that people without pets donate more than cat owners, who in turn give more often and diversely. The researchers analyzed over $70 billion in donations from approximately 63 million donors, suggesting that personality traits may play a role in philanthropic behavior.
A massive meta-analysis of 25 previous studies found that efforts to reduce partisan animosity are largely ineffective, with superficial interventions improving feelings towards the other party by only 5.3%. The effects are fleeting, disappearing within one week, and even repeated interventions fail to produce lasting results.
A new study found that warning voters about false claims and providing them with information on election security measures can increase confidence in the results. In the US and Brazil, prebunking was more effective than credible sources in decreasing beliefs about election fraud.
A new study by Dartmouth astronomers has mapped 355 candidate satellite galaxies around dwarf galaxies, tripling the number previously surveyed. The researchers aim to understand how external conditions influence satellite formation and uncover insights into dark matter's nature.
A new study found that early humans consumed carbohydrate-rich foods like grains and underground plant tissues before they had the ideal teeth to chew them efficiently. This suggests that behavior played a significant role in their physical evolution, allowing them to adapt to new environments despite physical limitations.
A new study has coined the term 'scrumping' to describe great apes' fondness for eating ripe, fermented fruit from the forest floor. The researchers suggest that this behavior may have played a significant role in the evolution of human alcohol tolerance.
A new study found that global climate conditions affect the spore traits of arbuscular mycorrhizal fungi, influencing their survival, spread, and interaction with plants. The research provides insights into the environmental adaptations of microorganisms, which could guide soil restoration and food production.
A Dartmouth study reveals distinct patterns associated with offshore secrecy, tied to home country governance. Elites from authoritarian countries use a 'confetti strategy,' while those from transparent democracies employ 'concealment' and 'hybrid' strategies to hide assets.
Researchers found several volatile phases in the polar jet stream over the past 125 years that predate significant climate change effects. The study suggests that natural fluctuations may be driving recent erratic behavior of the jet stream, rather than climate change.
A new study provides evidence that pigs were domesticated from wild boars in South China approximately 8,000 years ago. The researchers analyzed molar teeth of 32 pig specimens and found starch granules, human parasite eggs, and other signs of human interaction, indicating that pigs ate cooked foods, human waste, and scavenged food fro...
Researchers discovered a massive 330-acre ancient agricultural site in Michigan, featuring raised field systems and clustered garden beds. The site, dating back to the 10th century, reveals intensive farming practices by ancestral Native Americans, challenging previous estimates.
Researchers at Dartmouth College propose a new theory on the origin of dark matter, suggesting it could have formed from high-energy massless particles that rapidly condensed into cold, heavy particles. The theory can be tested using existing observational data, including the Cosmic Microwave Background radiation.
New study models spatial patterns of grazing halos around coral reefs and finds that halo patterns can signal reef resilience. The research suggests that stable halos exist where herbivores are limited by predators, while oscillating halos may indicate a shift in system health.
A Dartmouth team's AI model recognized Navajo with near-perfect accuracy, identifying related languages such as Apache and Native Alaskan languages. The study suggests that this technology could be a bridge to including smaller languages in online translation services.
A new study by Dartmouth researchers lays out a scientific framework for tracing specific climate damages back to emissions from individual fossil fuel companies. The framework combines climate modeling with publicly available emissions data to provide robust emissions-based attributions of climate damages at the corporate scale.
A study found that respondents who received information about democratic backsliding in the US had a less favorable view, but policy support remained unchanged. The research team also discovered that an economic downturn did not influence global public opinion, highlighting the complexities of soft power and US foreign policy.
The study found significant improvements in symptoms for participants with major depressive disorder, generalized anxiety disorder, and eating disorders. Participants reported trusting and communicating with Therabot comparable to working with a therapist.
Researchers found that AGN radiation can have a paradoxically nurturing effect on life, especially when oxygen levels are present, allowing the planet's protective ozone layer to grow and shield it from radiation. This process can help ensure life's success, but its effects depend on how close the planet is to the source of radiation.
A team of researchers recommends incorporating principles like collective benefit and ethical governance into ecological data practices to align with existing data infrastructures. They suggest establishing collaborative relationships with Indigenous rights holders and exploring how data can be aligned with Indigenous expertise and wor...
A Dartmouth-led study reveals that pregnant individuals with no emotional support during childbirth experience higher levels of perceived stress, comparable to a C-section delivery. The research highlights the importance of access to emotional support in reducing stress and improving maternal and child outcomes.
A new Dartmouth study reveals that 50% of adult blacklegged ticks in the Northeast carry the bacteria that causes Lyme disease. The study found small changes in tick abundance but a significant increase in pathogen prevalence over 30 years, highlighting the need for continued prevention measures.
A study found that AI models can predict unrelated traits, such as whether patients abstained from eating refried beans or beer, with surprising accuracy by exploiting subtle patterns in data. The researchers emphasize the need for rigorous evaluation standards to prevent misleading conclusions and ensure scientific integrity.
A Dartmouth-led study suggests using clay to convert CO2 into food for zooplankton, which expel it as carbon-filled feces in the deep sea. This method accelerates the ocean's natural cycle for removing carbon from the atmosphere.
Dartmouth researchers propose a new way of thinking about masking and social distancing rules using game theory, considering them as two distinct actions. The study finds that people respond differently to these measures based on their perception of the disease's severity, trending towards masking or no protective action over time.
A Dartmouth-led study reveals the fundamental genetic pathways and biological mechanisms behind the corpse flower's heat production and odorous chemicals. The researchers identify a new component of the corpse flower's odor, an organic chemical called putrescine, which is released when the plant blooms.
A Dartmouth study has quantified the global economic fallout of El Niño, finding it costs the economy $4.1 trillion and $5.7 trillion in the half-decade after each event. The study's findings are included in the 10 New Insights in Climate Science report ahead of COP29.
A new study reveals how three species of bacteria coexist in biofilms by playing a game of 'nice' and then moving out when the surface becomes too crowded. The dominant species, Pseudomonas aeruginosa, disperses to allow other species to thrive.
Dartmouth chemists have developed a synthetic molecular switch that can trigger shape changes in liquid crystals, reflecting different colors. The switch is made up of triptycene and hydrazones that can flip on and off with a pulse of light, allowing for the creation of multicolored images and potential applications in energy-efficient...
A Dartmouth study introduced a smartphone app to monitor student mental well-being, which was recognized for its impact on the development of mobile and wearable health technology. The app found strong correlations between student mental health and academic performance, social interactions, and behavior.
A Dartmouth-led study found that people are more skilled at inferring past events from conversations than predicting future events. This phenomenon is attributed to the asymmetrical nature of human knowledge about their own lives and experiences, which influences how people converse.
Research reveals that children who attended day care regularly are more likely to overcome stereotypical beliefs in adulthood. Participants who spent time in day care were quicker to adjust their behavior when interacting with people of different ages.
Researchers found that serotonin release scales with the value of rewards, indicating its role in monitoring reward quality. The study used a new biosensor to measure serotonin levels in mice receiving varied concentrations of evaporated milk as rewards.
A Dartmouth-led study found that air pollution from fossil fuels reaches the remote Arctic, altering its fundamental atmospheric chemistry. The researchers detected declines in methanesulfonic acid, a biomarker linked to phytoplankton productivity, which plummeted in environments high in emissions.