Articles tagged with Behavior Genetics
A study found that flat-faced breeds like English and French bulldogs rely more heavily on humans during problem-solving tasks, leading to lower task success rates. This trait may contribute to the strong social bond between owners and these breeds, but the study's findings do not confirm a genetic predisposition.
Repeated traumatic brain injury contributes to Alzheimer's disease by promoting de novo tau pathogenesis and facilitating pathological tau transmission in mouse models. Axonal microtubule disruption is a key molecular mechanism underlying rTBI-induced protein pathogenesis.
A large study found that people with an evening chronotype were more likely to engage in unhealthy lifestyle behaviors such as smoking, poor sleep, and physical inactivity. These individuals had a 72% higher risk of developing diabetes compared to those with a morning chronotype.
Sahmyook University researchers discovered a correlation between methamphetamine-induced behavior and the expression of specific genes in mice models lacking Period 2 gene. They identified 19 genes that were activated only in response to repeated doses of methamphetamine.
Researchers discovered that the blood-brain barrier in carpenter ants produces a hormone-degrading enzyme, Juvenile hormone esterase (Jhe), which controls JH3 hormone levels in the brain, affecting behavior. Manipulating Jhe levels can reprogram ant castes and even change food-seeking behavior in fruit flies.
A research team from the University of Göttingen investigated the molecular networks of a single-celled alga to understand plant terrestrialization. They identified 'hub genes' that play a central role in coordinating gene expression, revealing insights into long-term evolutionary patterns.
A study led by University College London researchers analyzed 393 wasp samples collected from citizen scientists and found a single population of the Common Wasp (Vespula vulgaris) across Britain. The findings demonstrate the wasp's ability to disperse itself widely, contributing to its success in human-modified environments.
Researchers have discovered a gene, B5, in Egyptian cotton that confers powerful resistance to bacterial blight. The gene enables strong resistance to the disease under Oklahoma field conditions and accumulates high amounts of defense chemicals.
Researchers have uncovered almost 500 genes linked to diet, shedding light on genetic basis of food preferences. The findings suggest a potential for using genetics to develop precision nutrition strategies tailored to individual tastes.
A long-term study of male macaques found that same-sex sexual behavior is common and correlated with coalitionary bonds, providing social benefits. The research also revealed a genetic link to primate SSB, challenging the idea that it defies nature and evolution.
A new AI tool, MAFDA, tracks individual fruit flies' complex behaviors and compares them with their genetic backgrounds. This enables researchers to study behavior genetics and gain insights into inherited traits.
Researchers using genetic databases study the interaction between biological forces and social environments to better understand complex behaviors. By analyzing massive banks of genetic data, scientists can clarify the nuances of human behavior and improve social science research.
Researchers discovered that a diet rich in the bacteria Lactobacillus reuteri can maintain associative learning ability in older nematodes. This finding suggests potential ways to use diet to reduce age-related cognitive decline in other animals, including humans.
HaoSheng Sun, assistant professor at University of Alabama at Birmingham, has been selected as a Freeman Hrabowski scholar by the Howard Hughes Medical Institute. He will receive up to $8.6 million over 10 years to advance his research on neural development and plasticity.
Researchers at the University of Utah Health have made a groundbreaking discovery about the role of microglia in controlling anxiety-related behaviors. The study found that specific microglia populations activate anxiety behaviors while others dampen them, and these cells communicate with neurons to invoke behaviors.
A new study explores the genetic mechanisms underlying honey bee colony defense and aggression, revealing that gene regulation influences collective behavior and division of labor. Researchers found that brain gene regulatory networks differ between soldiers and foragers, particularly in more aggressive colonies.
A study found that mice lacking a specific gene make different decisions, repeating a behavior sequence and reducing second-guessing. The research implies genes can bias decision-making, even for seemingly irrational choices.
A new study found that neurons in a key brain region have different functions based on their genetic identity, which could lead to better understanding of the brain's computational flexibility and memory capacity. The diversity of neurons in the CA1 region of the hippocampus was previously unknown and is crucial for memory development.
Scientists have found that siblings with autism spectrum disorder (ASD) share more of their father's genome than initially thought. In many cases, it is the father who may play a bigger genetic role in ASD. This discovery offers new potential sources for understanding and treating the disorder.
Researchers identified two clear groups of young horses with distinct reactions to a sudden novel object. The first group exhibited a spike in heart rate and hyper-alert behavior, while the second group calmed quickly after the stimulus. Understanding these genetic components can help match horses with suitable owners and training for ...
Researchers at UMass Chan Medical School identified the Bmal1 gene as a crucial regulator of circatidal behavior in P. hawaiensis, establishing a molecular link between circadian and circatidal clocks. The study provides new insights into the genetics underlying circatidal rhythms.
Researchers found that three specialized Kenyon cell subtypes in honey bees evolved from a single, multifunctional ancestor, potentially offering insights into human behavior. Transcriptome analysis revealed comparable similarity between the Kenyon cell subtypes of sawflies and honey bees.
A Cornell University-led project has reconstructed Balto's phenotype using ancient DNA extraction and analysis. The research reveals that Balto had a genetically healthier and less inbred lineage than modern breeds, with characteristics adapted to the extreme environment of 1920s Alaska.
The Hastings Center's new report provides direction for research and communications in social and behavioral genomics, highlighting both potential benefits and significant risks. The report recommends engaging with stakeholders, justifying population definitions and phenotype measurement, and conducting studies with adequate power.
A new study from Weill Cornell Medicine has identified four clinically distinct groups of people with autism spectrum disorder, each with unique brain connection patterns and behavioral traits. The findings highlight the potential for personalized therapies tailored to individual subgroups, which may lead to more effective treatments.
A recent study on the pike icefish revealed significant genetic changes as it migrated from Antarctic to temperate waters. The researchers found divergent genes associated with the physiology that needed to change in response to the new environment, including mutations in the antifreeze glycoprotein gene.
A recent study has identified 60 unique brain proteins that may influence body weight via their expression in the brain. Genetic factors are believed to contribute to up to 50-75% of BMI variation, with the brain playing a critical role in regulating energy homeostasis.
Researchers analyzed 557 subjects to link genetic variations, brain structure, and behavior to intelligence test performance. They found specific brain areas where gene variations influence brain characteristics, which in turn affect intelligence.
The April issue of The American Journal of Psychiatry features studies on mood disorders, psychotic disorders, autism, and stress-related disorders. A special issue of The American Journal of Psychotherapy honors the work of Otto F. Kernberg, M.D.
Researchers from Spain, Italy and Norway uncover a cluster of water channel genes in teleosts that allow eggs to float. The study reveals unique mechanisms for hydrating maturing eggs, which determines their buoyancy.
Researchers identified over 1,000 genes with age-related methylation changes in human sperm. These changes are associated with increased offspring disease susceptibility for neurodevelopmental disorders. The study found no correlation between paternal BMI or semen quality and age-related methylation changes.
Research at Kobe University reveals that endogenous retrovirus activation increases a fetus's susceptibility to autism, leading to differences in brain structure and behavior. The study identifies BTBR/R mice as a more accurate model of autism, exhibiting autistic-like behaviors without reduced learning ability.
A review highlights the impact of paternal diet, nutrition, and lifestyle on future generations, with strong evidence suggesting a western diet leads to imbalances in nutrient intake. Advanced paternal age is linked to genetic, psychiatric, and metabolic disorders in offspring, emphasizing the need for men's healthcare.
A new UC Davis study has identified 194 significantly different genes in the brains of people with autism, with many linked to brain connectivity, immune response, and inflammation. The research also found age-dependent differences in genes related to synaptic function and cell loss.
Researchers identify duplicated gene as cause of social deficits and seizures in autism type, finding that reducing PRRT2 levels can restore normal brain activity and behavior. This discovery could lead to novel therapies for neurodevelopmental disorders with brain over-activation.
A new study published in Genes, Brain and Behavior found that genetic variants in LINGO2, OAS1, and HECTD1 are associated with different mathematical abilities in Chinese children. The study refined genome-wide association studies of math skills and added population diversity to the literature.
Researchers from HKU School of Biological Sciences reveal the important role of SCT Receptor in regulating drinking behaviour under thirst. The study demonstrates how SCTR participates in SFO to regulate thirst and provides new insights into gut-brain axis regulation.
A new drug has shown promising results in reversing autism-associated behaviors in mice by blocking sodium channels. The study, conducted at the German Cancer Research Center (DKFZ), found that a specific drug was able to alleviate functional and behavioral abnormalities in mice with MYT1L-deficient nerve cells.
Researchers found that breeds genetically closer to wolves are more prone to reply with howls, while modern breeds bark instead. Older dogs over 5 years also show increased stress-related behaviors when howling.
Researchers discovered a single protein called Gr8a that plays an inhibitory role in mating decision-making, helping flies avoid inter-breeding with the wrong partner. The findings provide insight into how signal production and perception are tied together, shedding light on pheromone communication.
A study published in Genome Biology and Evolution found a core genetic toolkit for reproductive division of labor in rudimentary insect societies. The authors identified common genes associated with fundamental social divisions in bees and wasps, suggesting a universal molecular 'theme' for cooperation across species.
A study by UC San Francisco and Stanford Medicine found that removing the oxytocin receptor does not interfere with monogamy or giving birth. Prairie voles bred without receptors for oxytocin showed similar mating, attachment, and parenting behaviors as regular voles.
Research reveals that prairie voles can form enduring pair-bonds and provide parental care without oxytocin receptor signaling, contradicting previous studies. While mutant voles lack milk release, they still nurse and rear pups to weaning age, suggesting species-specific roles of oxytocin receptor signaling.
Researchers studied cavefish metabolism to understand how humans might adapt over long periods of inactivity, finding genetic changes that enable muscle endurance and efficient energy storage. The study suggests potential implications for understanding and mitigating the negative effects of sedentary lifestyles on human health.
Researchers have documented cases of Japanese macaques hunting and eating fish in the Kamikochi region of Japan, suggesting an evolutionary adaptation to harsh winter conditions. The behavior appears to be an extension of existing feeding habits on vegetation and aquatic plants, with potential implications for future generations.
A recent study found that education about gene-by-environment interaction (G X E) causes of eating behaviors can positively affect attitudes toward people with higher weight. Participants who received G X E education reported higher empathy and held fewer stigmatizing attitudes.
Researchers sequenced the genomes of two endangered sharks, finding low genetic diversity and signs of inbreeding in great hammerheads. In contrast, shortfin makos showed higher genetic diversity and limited inbreeding, offering a glimmer of hope for conservation efforts.
Researchers found that differences in epigenetic DNA methylation predict behavioral differences between dogs better than genetic markers. Epigenetics are more informative for behavior than genetics, and the results open up new possibilities for screening and selecting desired behavioral traits in companion or service dogs.
A study analyzing DNA samples from over 200 dog breeds and nearly 50,000 pet-owner surveys pinpointed genes behind canine behavioral traits. The researchers found that common sets of genes were responsible for behaviors among dog breeds well-suited for similar tasks, such as hunting or herding.
A large genetic study found that more than 2,300 genes predict alcohol and tobacco use behaviors, with a majority shared among people of European, African, American, and Asian ancestries. The study's findings have the potential to identify individuals at high risk for substance misuse.
A recent study published in Molecular Psychiatry reveals a genetic link between attention-deficit/hyperactivity disorder (ADHD) and Alzheimer's disease in older adults. Researchers used a polygenic risk score to analyze the relationship between ADHD genetic predisposition and cognitive decline, finding a higher risk of developing Alzhe...
Researchers identified surprising differences in TGF-β genes across nine nematode species, revealing unexpected changes in function between species. This study provides new insights into the evolution of TGF-β signaling pathways and their impact on development, behavior, and disease in humans and parasites.
Research emphasizes the importance of ethnically diverse prostate cancer genomics data and accessible genetic testing. Variations in genomic landscape of prostate cancer were observed in Chinese men compared to Western cohorts, with lower mutation rates in driver genes such as TP53 and PTEN.
A new study by Arizona State University researchers found that females with higher social status had younger, more resilient molecular profiles in their brains. The study used rhesus macaques and showed a key link between the social environment and healthy brains, providing new insights into aging.
Research reveals natural genetic variation impacting brain development contributes to autism's diverse behaviors, with implications for tailored support. The study sheds light on the complex relationships between genetics, brain development, and behavior in individuals with autism.
The HUSH complex is involved in normal brain development, neuronal individuality, and connectivity. The complex also regulates repetitive-like gene clusters, including protocadherin gene clusters, which are essential for neuron-to-neuron interactions.
A new study published in Molecular Psychiatry suggests that parental discord and divorce may be indicators of children's genetic risk for future alcohol misuse. Researchers found that exposure to parents' relationship discord or divorce is associated with increased risk of alcohol use disorder symptoms in adulthood.
A new UCLA-led study found comprehensive brain-wide changes in individuals with autism spectrum disorder, refining scientists' understanding of how the condition progresses. The study analyzed gene expression across 11 cortical regions, revealing strong evidence that RNA changes in the brain are likely the cause of ASD.
A study published in PLOS Genetics reveals that the black plumage trait in Solomon Islands flycatchers evolved through at least two distinct genetic pathways, with the third mutation appearing on a distant island. The research highlights the complex evolution of bird species on small islands.
A Tel Aviv University study shows that pressure chamber therapy can improve social skills and reduce neuroinflammation in the autistic brain. The treatment, which involves high-pressure chambers with oxygen enrichment, was found to increase blood and oxygen supply to the brain, leading to improved brain function and social behavior.