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Campfire Flicker May Have Favored Speech Over Gesture in Human Evolution, Study Suggests

Campfire Flicker May Have Favored Speech Over Gesture in Human Evolution, Study Suggests

A review published in Proceedings of the Royal Society B by Catherine Hobaiter of the University of St Andrews and Nathaniel J. Dominy of Dartmouth College suggests that the flickering nature of campfire light, rather than its dimness, may have played a crucial role in the evolutionary shift from gestural communication to speech. The researchers measured real campfires and found that the light is bright enough to resolve hand gestures. However, they argue that the constant pulsing and flickering of firelight, which causes the eye to repeatedly switch between photopic and mesopic vision, would have disadvantaged gestural communication by increasing receptor noise and lowering visual acuity. Conversely, the flicker rate of fire, around 2.7 hertz, aligns with the delta band of brain rhythms associated with enhanced attention and memory, and is close to the rhythm of human speech, potentially favoring vocal communication.

What’s Wrong With Men? This Author Thinks He Knows

What’s Wrong With Men? This Author Thinks He Knows

In his new book The Castle: Adventures in a World of Unraveling Men, veteran journalist Jon Ronson, author of The Psychopath Test, explores the many facets of modern machismo

Dubai Royal Maytha Bint Maktoum Steps into Public Eye with Mental Health Initiative

Dubai Royal Maytha Bint Maktoum Steps into Public Eye with Mental Health Initiative

Dubai Royal Maytha Bint Maktoum Steps into Public Eye with Mental Health Initiative

Mathematical Framework Suggests Disagreement Enhances Group Trustworthiness in Decision-Making

Mathematical Framework Suggests Disagreement Enhances Group Trustworthiness in Decision-Making

Researchers from the University of Toulouse-CNRS and the University of Leeds have developed a mathematical framework indicating that some disagreement within expert groups can make their decisions more trustworthy, especially when decisions are complex. Published in the Journal of the Royal Society Interface, their findings challenge the conventional view that unanimity always signifies a good decision. The study suggests that high levels of agreement, particularly when individuals are prone to conformity bias, might actually mask underlying issues where group members simply align with the majority rather than independently evaluating information. This 'credibility-enhancing dissent' phenomenon implies that a group appearing overly confident might be less trustworthy, as it could indicate a lack of genuine independent thought among its members. The researchers modeled various scenarios, including different levels of decision complexity and conformity, to arrive at these conclusions.

Influential Dan Ariely Study Retracted Amid Data Manipulation Concerns

Influential Dan Ariely Study Retracted Amid Data Manipulation Concerns

An influential 2002 study co-authored by Israeli behavioral economist Prof. Dan Ariely has been retracted by the journal Psychological Science. The retraction follows a failed replication attempt by Prof. Kyle Hyndman and Prof. Alberto Bisin, and a subsequent analysis by researchers at Data Colada (Uri Simonsohn, Joe Simmons, and Leif Nelson) that raised serious questions about the reliability of the original data. The initial paper, which examined procrastination and the effectiveness of different deadline structures, concluded that evenly spaced external deadlines improved performance more than self-imposed or single final deadlines. Data Colada's investigation identified several 'major red flags,' including unusually large effect sizes, duplicated observations, implausible statistical relationships, and inconsistent reporting of time spent on tasks, leading them to believe the data from one study had been 'severely tampered with or fabricated.' Prof. Ariely and Prof. Klaus Wertenbroch, the co-authors, a...

Relational Therapy Aids in Healing and Building Healthier Relationships

Relational Therapy Aids in Healing and Building Healthier Relationships

Relational therapy, also known as relational psychotherapy, is an approach that centers relationships in the therapeutic process, including the dynamic between the client and therapist. This method operates on the belief that many patterns developed in relationships can be understood, challenged, and ultimately healed through new relational experiences. Instead of viewing individuals as isolated entities with symptoms to be fixed, relational therapy explores how personal experiences, relationships, identities, and environment have shaped an individual's way of interacting with the world. It delves into the origins of these patterns, how they served as adaptations, and whether they continue to be beneficial for current relationships and life goals. The approach is highly collaborative, with the therapist contributing clinical knowledge and the client offering expertise in their own lived experience. This collaborative dynamic allows for the exploration of connection and disconnection, practicing needs artic...

Fiji Trains Officers to Strengthen Animal Disease Response Amid Growing Threats

Fiji Trains Officers to Strengthen Animal Disease Response Amid Growing Threats

Fiji is enhancing its capacity to respond to animal disease threats by training 26 officers from the Ministry of Agriculture, Waterways and Sugar Industry. These officers completed specialized Para-Vet Training, acquiring practical skills in animal examination, disease recognition, treatment, biosecurity, and veterinary medicine. The program, supported by the Australian Government through the Department of Foreign Affairs and Trade and the Pacific Community, aims to bolster Fiji's efforts to protect its livestock and poultry industries. Australian veterinarian Dr. Dan Edson, who facilitated the training, emphasized the crucial role of Para-Vets as a link between veterinary services and farmers, especially in rural areas. The training included hands-on procedures such as horse and bull castrations, providing participants with experience in managing complex animal health cases. Permanent Secretary for Agriculture, Waterways and Sugar Industry Dr. Andrew Tukana highlighted that early detection, farmer awarene...

Rare Blue Darwin's Frog Discovered in Chilean Patagonia, Raising Biological Questions

Rare Blue Darwin's Frog Discovered in Chilean Patagonia, Raising Biological Questions

A rare blue Darwin's frog (Rhinoderma darwinii) has been observed in Chile's Aysen Region, specifically within the Melimoyu reserve. This unusual specimen, a male measuring 27.01 millimeters and weighing 1.83 grams, was discovered by photographer and environmental educator Jaime Beltrand during fieldwork. The striking blue coloration is particularly noteworthy as Darwin's frogs are typically green and brown. This is the first time such a pronounced blue hue has been recorded in the area despite over a decade of monitoring. The frog was also found carrying approximately four larvae in its vocal sac, a unique reproductive behavior where males nurture developing larvae internally. Researchers, including Andres Valenzuela, president of the Darwin's Frog NGO, suggest the unusual color may stem from changes in skin pigments, possibly a reduction in yellow pigmentation that reveals underlying blue tones. The specimen still exhibits some green areas, indicating a potentially incomplete loss of yellow pigment.

Beluga Whales and Dolphins Rescued from Bankrupt Canadian Marineland, Relocated to New Homes

Beluga Whales and Dolphins Rescued from Bankrupt Canadian Marineland, Relocated to New Homes

Two beluga whales and four dolphins from the now-closed Marineland amusement park in Canada have been successfully relocated to a new home in Valencia, Spain. This rescue operation followed threats from the bankrupt park's operators to euthanize the animals if no government support was provided. The transfer involved months of preparation by veterinarians and animal caretakers, culminating in a seven-hour flight to Spain. Upon arrival, the animals were reported to be in good condition, though they will remain under observation for several days due to the stress of the long journey. Other beluga whales from Marineland have also been rescued and moved to four aquariums in the United States. Releasing these animals into the wild is not considered a viable option, as their long-term captivity would likely prevent them from surviving independently in their natural habitat.

Aging Impairs Retinal Glia's Ability to Regenerate Neurons, Study Finds

Aging Impairs Retinal Glia's Ability to Regenerate Neurons, Study Finds

A new study from the laboratory of Levi Todd, Ph.D., at Upstate Medical University has revealed that aging significantly limits the capacity of glial support cells in the retina to be reprogrammed into new neurons. This finding, published in the Proceedings of the National Academy of Sciences, is among the first to investigate whether glial reprogramming strategies, which have shown success in young animals, remain effective in aged tissue. The research indicates that the efficiency of glial-to-neuron reprogramming is substantially reduced with age due attributed to two primary factors: the 'tiredness' and reduced plasticity of cells that persist throughout life, and 'inflammaging,' a phenomenon where inflammation increases with age and compromises the blood-brain barrier. The study also found that dampening the immune system with anti-inflammatory steroids could partially restore the retina's regenerative response in aged neurons.

Brookdale Community College to Offer Psychology Study Abroad Program in Iceland for Summer 2027

Brookdale Community College to Offer Psychology Study Abroad Program in Iceland for Summer 2027

Brookdale Community College to Offer Psychology Study Abroad Program in Iceland for Summer 2027

National Institutes of Health Terminates Two Pitt Alzheimer's Studies, Citing Scientific Validity Concerns

National Institutes of Health Terminates Two Pitt Alzheimer's Studies, Citing Scientific Validity Concerns

The National Institutes of Health (NIH) terminated two Alzheimer's disease research grants at the University of Pittsburgh (Pitt) in early August. The terminations, part of a broader trend of increased federal authority over scientific research funding, were attributed to concerns about scientific validity and the language used in the grant applications. These two grants were among 6,500 active grants at Pitt. The termination means the immediate cessation of all further work on these projects and the loss of approximately $7 million in remaining funds. One of the terminated projects, a $9.6 million grant led by Professor Ann Cohen, focused on how brain imaging, biomarkers, and social determinants of health (like housing and stress) relate to cognitive aging and Alzheimer's development. According to Cohen, the NIH stated that the study's diversity, equity, and inclusion-related activities were no longer aligned with federal priorities and were not considered scientifically valid methodologies. The other gra...