All articles tagged with #rats
Research from Washington State University shows that rats with higher baseline stress hormone levels are more likely to self-administer cannabis, suggesting that long-term stress biology may influence cannabis-seeking behavior, similar to patterns observed in humans.
A rat study shows that not only do individual genes influence gut bacteria, but social contact with genetically different rats can also shape one's microbiome, suggesting that genetics and social interactions jointly affect gut bacteria and potentially human health.
Washington state officials warn residents about rats potentially entering homes through toilets due to recent severe flooding, advising calm and specific steps to handle encounters, as floods have caused widespread damage and increased rodent intrusion risks.
Heavy rains in Western Washington have led to an increase in rats entering homes through toilets, prompting public health advice to keep toilet lids down and use traps if necessary. Incidents are linked to aging sewer systems and combined sewer overflows during storms, which can allow rats to access residential plumbing. Residents are advised to remain cautious and follow safety tips to handle such situations.
Health officials warn residents in King County, Washington, about the possibility of rats appearing in toilets after recent heavy rains and flooding, and provide tips for safely removing them or contacting pest control if needed.
Researchers found that oxytocin in the orbitofrontal cortex promotes reciprocity and empathy in rats, reducing free-riding and stabilizing cooperative behavior through internal motivation rather than external enforcement.
A study from Japan found that in rats, the ratio of the second to fourth finger (2D:4D) can predict sexual activity and preference, suggesting a link between prenatal hormone exposure and adult sexual traits, with potential implications for understanding human behavior.
A six-year study by Tufts University found that rats in Boston carry the bacteria responsible for leptospirosis, a potentially deadly disease that could become more prevalent with climate change, posing risks to humans and animals.
A long-term study on Sprague–Dawley rats found that exposure to glyphosate and glyphosate-based herbicides at levels similar to EU safety limits increased the incidence of multiple benign and malignant tumors, including leukemia, skin, liver, thyroid, and nerve tumors, supporting the classification of glyphosate as a probable carcinogen based on experimental evidence.
A study published in 'Drug and Alcohol Dependence' explored how aversive cues, like bitter tastes, affect addiction susceptibility in lab rats given cocaine. Researchers found three distinct responses: some rats avoided cocaine due to the aversive taste, others increased their intake despite it, and a surprising third group initially overindulged but then reduced consumption. These findings may help explain individual differences in addiction development and guide future research on the brain's response to drugs and aversive stimuli.
Researchers at the University of Richmond have trained rats to drive tiny cars, discovering that the rodents not only learn to drive but also enjoy the experience. This experiment, led by neuroscientist Kelly Lambert, provides insights into animal cognition and stress, showing that the anticipation and process of driving can be as rewarding as the outcome. The study suggests that such activities may enhance cognitive functions in rats, offering a lesson for humans about savoring the journey rather than just the destination.
Researchers at the University of Richmond have trained rats to drive small cars, discovering that the rodents not only learn quickly but also seem to enjoy the activity. The study, led by Professor Kelly Lambert, found that rats housed in enriched environments learned faster and showed signs of positive anticipation, such as eagerly jumping into the cars. Further research indicated that anticipation of positive experiences could shift rats' cognitive styles from pessimistic to optimistic, enhancing their problem-solving abilities. This suggests that anticipation and enjoyment of experiences may be key to a healthy brain.
Researchers from Harvard University and the University at Buffalo have discovered that rats can manipulate matter at a distance using ultrasonic vocalizations, challenging traditional views of animal biology. These high-frequency sounds, ranging from 22 kHz to 80 kHz, allow rats to move microscopic particles, enhancing their ability to detect pheromones for communication and survival. This phenomenon not only highlights an evolutionary adaptation in rats but also suggests potential technological applications in fields like medical diagnostics and sensory enhancement.
Researchers at the University of Richmond have taught rats to drive tiny cars, discovering that the rodents not only learn the skill but also enjoy it, showing excitement by revving the engine. The study, led by neuroscientist Dr. Kelly Lambert, explores how positive experiences and anticipation can impact brain chemistry, suggesting that rats in enriched environments learn faster and exhibit more optimistic cognitive styles. This research highlights the potential of 'behaviorceuticals'—experiences that alter brain chemistry similarly to pharmaceuticals.
Neuroscientists have trained rats to drive tiny cars, revealing insights into how enriched environments enhance neuroplasticity and how anticipation of positive experiences can influence behavior and brain function. The study found that rats housed in stimulating environments learned to drive faster and showed signs of positive emotions, such as tail posture changes linked to dopamine. This research highlights the importance of positive experiences in shaping brain health and behavior, suggesting that anticipation and enjoyment of activities can be as crucial as the rewards themselves.