Research on why people act as they do. Covers self-processing across primates, substance use, weight-loss behavior, and nicotine seeking.
Researchers at Yerkes develop a transgenic nonhuman primate model of Huntington's disease to study disease development and develop treatments and prevention options. The model will be used in high-resolution imaging scans and behavioral studies.
A study of 12 normal-weight individuals found that their eating behavior did not compensate for overeating, despite gaining weight. Instead, they maintained their usual eating patterns when returning to their normal environment.
Dopamine's prolonged effects may be key to understanding psychiatric conditions, which are characterized by persistently high brain messenger levels. Researchers found a second mechanism by which chronic dopamine affects the brain, possibly indefinitely.
Researchers tracked basking sharks using pop-up tags to study their diving behaviour. They found that sharks in shallow waters exhibit reversed behaviour compared to deep water, indicating a response to changes in zooplankton vertical migration.
A study by researchers at Penn State and Washington state universities found that relying on others outside the family for information is associated with parents being less knowledgeable about their child. In contrast, parents in relational groups were more likely to be informed and had teens engaging in less risky behavior.
A study published in the Proceedings of the Royal Society reveals that in specific situations, unrelated African cichlid fish helpers must contribute more to their group to gain access and benefits. By analyzing genetic relatedness and behavioral observations, researchers found that under certain ecological conditions, non-relatives ta...
A recent study published in Psychological Science reveals that consonants play a crucial role in distinguishing between words, while vowels carry grammatical information. The researchers found that listeners are sensitive to this difference and can compute statistical relations among vowel sounds but not consonant sounds.
The National Institute of Standards and Technology has issued a report calling for strengthened codes to prevent similar nightclub fires. The recommendations aim to enhance occupant safety by implementing measures such as sprinkler systems, flammable material restrictions, and emergency preparedness practices.
A recent study using fruit flies has revealed the role of the dFMRP protein in regulating actin dynamics, which is crucial for neuron formation. This research holds promise for a better understanding of fragile-X-syndrome and brain development.
Researchers found that people from Asia and Africa have lower lactase production due to harsh climates and diseases that made dairy farming unfeasible. In contrast, Europeans retain lactase due to historical dairy farming in their ancestral environments.
Researchers found that people altered their behavior after exposure to subliminal happy faces, drinking more and paying triple the price for a mystery drink. Thirst proved necessary for influence, and effects were short-lived, lasting only until conscious awareness arrived.
Researchers found significant improvement in sensory avoiding behaviors and tactile sensitivity after therapy sessions for children with ADHD. The treatment helped children better attend to lessons in noisy classrooms and participate in family activities.
Recent studies have shown that buckyballs can affect biological systems, but a new study assesses their behavior in water. Scientists found that buckyballs combine into nano-sized clumps, which are more soluble in water than individual carbon molecules, and inhibit the growth of soil bacteria at very low concentrations.
The CyberWalk project aims to create a fully immersive virtual environment that allows people to walk freely without restrictions. This will enable researchers to study human behavior patterns under controlled conditions. The platform, called the CyberCarpet, features thousands of pivoted spheres propelled by a treadmill.
Adolescent girls who engage in radical weight-control behaviors, depression, and perceive their parents' weight as obese are more likely to become obese. Erratic eating and lack of exercise do not strongly predict obesity.
Research by Marino and colleagues reveals that dolphins and primates share similar cognitive abilities despite their distinct brain development patterns. The study, which spans 47 million years, uses magnetic resonance imaging and fossil records to compare the encephalization of cetaceans and humans.
Researchers found that treating sleep disturbances in epileptic children improves their epilepsy, daytime behavior, concentration, and learning capacity. The study suggests that addressing underlying sleep disorders can have a significant impact on children's cognitive abilities.
The study found a significant increase in patients becoming up-to-date with screening recommendations and tests, from 38.7% to 56.1%, and the use of posters and brochures about CRC screening increased from 20.5% to 69.3%. Direct discussion of screening was the most common method for educating patients.
A large-scale study identified a genetic basis for certain behaviors, including alcohol consumption, suggesting that genetic make-up may influence drinking habits. The research focused on the dopamine D2 receptor gene (DRD2) and found a strong association between this gene variant and alcohol consumption.
Researchers have developed a Drosophila fly model for Fragile X syndrome, demonstrating physical and behavioral characteristics similar to those of human patients. Drug treatments blocking mGluR-receptor activity restored memory-dependent courtship behavior in mutant flies and reversed neuronal structural defects.
A study found that parents quitting smoking before their children reached third grade is associated with nearly double the chances of their children quitting smoking in young adulthood. The findings suggest that helping parents quit smoking should be considered in future public-health interventions targeting youth smoking.
Neurobiologist William H. Calvin argues that bigger brain size didn't lead to general intelligence improvements in human evolution. However, after a significant burst of creativity around 75,000 years ago, humans made rapid advancements in complex tasks like art and language.
Researchers have developed two novel robotic devices inspired by the movement of worms and slugs, including an endoscopic device that can navigate complex spaces and a gripping device that can pick up soft objects without damaging them. The devices aim to reduce discomfort and increase compliance during medical procedures.
A two-year study of 127 families found that children's behavioral problems lead to increased parental conflict and vice versa. The researchers identified differences in sibling experiences within stepfamilies, suggesting that each child evokes unique responses from parents.
Researchers at NYU found that pacemaker neurons transmit signals to target cells and modulate light sensitivity, generating a circadian rhythm in visual sensitivity. This discovery may lead to the identification of genes that can be used to treat sleep disorders and jet lag.
A recent study by Robert Kurzban and Daniel Houser found that three main personality types play a crucial role in group projects: Reciprocators, Cooperators, and Free Riders. The study revealed that about 63% of participants are Reciprocators, who tend to hold back before fully committing to a project.
Researchers found that combining behavioral enrichment and antioxidant supplementation significantly improved learning abilities in senior dogs. The study suggests similar benefits may be attained in humans due to biological and behavioral parallels between species.
Neurology researchers have identified an area in the prefrontal cortex that controls collecting behavior, revealing a potential link to hoarding disorders. Damage to this region can lead to abnormal hoarding behavior, interfering with daily life and causing individuals to resist discarding collected items.
Researchers found that people who believed they had become sick from eating hard-boiled eggs or pickles were more likely to avoid these foods in the future. However, the effect was limited to novel food items, with no change in behavior towards commonly consumed foods like potato chips.
Researchers found asymmetries in KNOB and language brain region correspond to right- and left-handedness, challenging previous theory of human-chimpanzee brain differences. The Yerkes National Primate Research Center is a leader in biomedical and behavioral studies involving nonhuman primates.
Working memory develops and improves with maturity, allowing voluntary control over behavior. Adults rely on a third brain area for optimal performance, whereas children and adolescents use different regions of the brain. This study informs understanding of thinking processes and may lead to new treatments for psychiatric illnesses.
Researchers develop mathematical model to predict mosquito-borne infection risk, finding that peak biting rates occur near breeding sites and highest human density. The proportion of infectious mosquitoes peaks where older populations are found, leading to surprising predictions about risk hotspots.
Researchers at NYU used rhesus monkeys to test game theory predictions, finding that monkey behavior matched human behavior. The study's findings suggest the posterior parietal cortex plays a key role in decision-making.
Boston University has been awarded $20.1 million to establish a Science of Learning Center, which aims to develop a model of how the brain learns. The center will bring together educators, scientists, and technologists from four institutions to investigate the foundations of learning across various situations.
A computer program simulated how people who felt threatened would respond to a serial subtraction problem, showing a 25% decrease in performance speed. Increasing knowledge through instruction and practice, or continuously checking results to bolster confidence, can help individuals switch their pre-task appraisal from threatening to c...
A USC study found that the brain processes rhythmic and discrete movements differently, with distinct activity patterns in different brain areas. The research has implications for movement control and rehabilitation, as well as our understanding of music's effect on human movement.
Researchers developed a new trust model to interpret subjects' performance in a simple task. The model factors in doubt and found that many students expressed doubt despite being told it was unlikely. This challenges the assumption that humans are irrational when doubting instructions.
Researchers found children who developed wheezing symptoms after age 3 had significant behavior problems before, compared to those who never wheezed. The study suggests a possible common factor, such as genetics or parental smoking, that accounts for both wheezing and behavior problems in children.
A study found that parents' close relationships with their children and efforts to monitor their behavior can help prevent adolescents from engaging in substance use and delinquent activities. Parental control was also a strong predictor of lower levels of problem behavior, regardless of the level of knowledge gained through monitoring.
Research suggests that dieters experience improved self-image after viewing photos of thin models in popular magazines. However, the study also indicates that those who are highly invested in achieving this ideal may be more likely to develop eating disorders.
Archaeologists discovered perforated shells at Blombos Cave, dated to 75,000 years ago, which were likely strung as beads. This finding supports the theory that modern human behavior developed gradually throughout the Middle Stone Age.
Research suggests that non-physical traits, such as personality and behavior, have a substantial impact on how people perceive physical attractiveness. Studies involving familiar and stranger participants found that non-physical traits known only to familiars had a large effect on perception of physical attractiveness.
Researchers caution against linking strep bacteria to neuropsychiatric disorders like OCD and tics in children. Neurologist Roger Kurlan and Edward L. Kaplan argue that the criteria for establishing a connection between strep and behavioral disorders are too vague, citing a lack of evidence from large, carefully controlled studies.
Archaeologists discovered ochre pencils, bone artifacts, and ostrich egg shell beads at a site in the Serengeti National Park, indicating early development of modern cultural behavior. The findings suggest that symbolic thinking may have emerged earlier than previously thought, around 280,000 years ago.
The study reveals that granular materials exhibit complex rheology, making it challenging for continuum theory to predict their behavior. The enriched continuum model offers a new level of predictive capability, capturing the key transition mechanism and shear bands.
A study by Michael A. Grandner and Daniel F. Kripke found that long sleepers and short sleepers report more sleep complaints than those who sleep seven to eight hours a night. Long sleepers experienced difficulty falling asleep, waking up during the night, and feeling unrefreshed upon waking.
Infants begin to grasp intentional action in the first year, understanding actions as goal-directed and recognizing invisible connections between people and objects. This early knowledge lays the foundation for later developments in understanding intentions.
A recent study found that men are more likely than women to adopt healthy behaviors, such as regular exercise and quitting smoking. Women, on the other hand, were less confident in their ability to make these changes. The researchers hope their findings can be used to assist both men and women with adopting healthier lifestyles.
Researchers at Cold Spring Harbor Laboratory found that rats can rapidly and accurately discriminate odors with just one sniff. The study, led by Zach Mainen, reveals vital new information about how the human brain processes information and guides behavior, suggesting that smell is a fast sense rather than a slow one.
Researchers found that 12-month-old infants looked longer at the ball approaching a helpful square, indicating they differentiated between the movies. This suggests that infants have ideas about what type of action would be more likely for the ball given its previous interactions.
A new book published by the University of Colorado Center explores post-disaster research and findings from 22 studies on emergency response, corporate interactions, volunteer behavior, and risk communication. The studies aim to improve public policy and disaster response in the face of terrorist attacks.
A study found that exercising in front of a mirror reduces women's energy, relaxation, and positivity. This effect persists even among those with good body image, suggesting mirrors may hinder physical activity motivation. The findings have implications for exercise promotion guidelines and the use of mirrors in workout centers.
A PET scan study found that only a combination of methylphenidate and a behavioral stimulus resulted in increased dopamine levels. The increases were associated with improved perception of the task as interesting and motivating.
A study by Hebrew University researcher Dr. Ehud Zohary found that blind people's brains reorganize to process touch and memory, leading to superior verbal memory skills. The research opens a window into understanding cortical plasticity in brain systems, potentially leading to improved treatment for neurodegenerative diseases.
A recent study by Louise M. O'Brien found that snoring in children, even without sleep apnea, can lead to significant cognitive issues such as attention deficits and language difficulties. The research involved 87 children aged 5-7 who snored but did not have obstructive sleep apnea, compared to 31 non-snoring peers.
Researchers found that children with behavioral disorders incur similar healthcare costs to those with physical disorders. Children with depression and anxiety had double the overall expenditures as those with disruptive disorders.
Researchers found that positive attitudes toward exercise most strongly influenced intention, followed by control over obstructing factors. Pregnant women who exercised reported improved physical condition, reduced discomfort, and increased energy. Postpartum barriers include exhaustion and lack of time.
A professor at Stanford University suggests a genetic mutation triggered modern human behavior, contradicting the majority of anthropologists. Genetic analysis of the foxp2 gene supports his theory, suggesting it evolved around 50,000 years ago.
The US Preventive Services Task Force recommends intensive diet counseling for at-risk adult patients to reduce fat and increase fruits and vegetables. Effective counseling involves multiple sessions and interactive materials, with studies showing significant changes in eating habits and some health benefits.
A study led by VCU researchers identified a genetic link to bulimia nervosa on chromosome 10p, building upon prior research that found the disorder's heritability. The findings aim to inform the search for effective treatments and preventative therapies for bulimia.