Articles tagged with Behavioral Neuroscience
Researchers have identified a network of brain cells that orchestrate parental behavior in mice, including hormonal changes and altered social behaviors. The discovery could one day help develop treatments for postpartum depression and other related conditions.
A study by researchers at Oregon Health & Science University has established a link between inflammation in pregnant women and the way the newborn brain is organized into networks. The results may provide promising avenues to explore treatments with potential to change negative impacts on newborn brain function.
Mice fed on high-fat or chocolate-based diets exhibit abnormal feeding behaviors such as snacking and bingeing. The study reveals that extended access to hypercaloric diets impairs control of food seeking behavior, leading to negative effects on learning, motivation, and behavioral flexibility.
A study using electroencephalography found that brain activity in the precuneus region of the parietal cortex plays a crucial role in detecting changes in natural sounds. Participants who were exposed to a longer sound stimulus reacted faster and identified changes more accurately.
Researchers found that a specific set of brain cell signals, involving dopamine and estrogen receptor alpha, trigger a mother's instinct to retrieve her offspring. The study's findings may explain human maternal behaviors like breastfeeding and could lead to new ways to support mothers with infant care challenges.
Researchers used a novel barcode-based tracing method to map the projection patterns of individual neurons in the visual cortex. The study found that most primary visual cortex neurons distribute information to multiple downstream areas, rather than projecting to a single target.
The 2018 Canada Gairdner Award laureates made significant discoveries in genomic imprinting and optogenetics, impacting human development and disease. Their work has led to a deeper understanding of gene expression, developmental biology, and neurological disorders.
Research elucidates the neural basis of complex altruistic behavior, discovering two brain circuits that govern moral decisions in war veterans. The study used CT scans and an altruistic decision task to map brain damage and behavior, finding correlations between specific brain areas and punishment or donation behaviors.
Researchers propose a new concept to uncover connections between brain regions and cognitive functions, using a bottom-up approach. Recent advances in statistical methodology and brain imaging data provide the basis for this new method, which could help reveal the core functions of brain areas.
Researchers discovered a highly specific neural circuit in mice that responds to hunger to create an analgesic effect, suppressing inflammatory pain and allowing the animals to seek food. The study found that acute pain can also suppress hunger, suggesting a hierarchy of needs prioritizing survival behaviors.
A new study reveals that rodents possess advanced object recognition strategies, comparable to those of primates. The research demonstrates the existence of rodent-specific recognition methods based on specific features and their spatial relationships.
Researchers identified the nerve cells responsible for a fly's escape response, providing clues into comparable survival mechanisms in humans. The study's findings shed light on conditions like allodynia, where gentle touch triggers pain-like sensations.
Researchers found a brain circuit in the primary visual cortex that combines head and visual movement signals, enabling appropriate behavioral responses. This circuit involves the retrosplenial cortex, which encodes spatial navigation information.
Researchers use optogenetic methods to control songbird neurons, prompting birds to change specific syllables in their songs. The study provides insight into how the brain guides the learning of vocal behaviors in humans.
A new study suggests that serotonin enhances active persistence in a task, even in the face of uncertainty. This challenges previous ideas about serotonin's role in behavior and may help understand depression treatment.
A new study by Duke University neuroscientists used electrical brain activity to predict depression vulnerability in mice, finding different networks of brain activity were linked to depression-like symptoms. The results may lead to a predictive test for mental illnesses like depression and could inform treatment strategies.
Researchers have discovered that bonobo and chimpanzee gestures share multiple meanings, with many gestures having similar functions across the two species. The study, published in PLOS Biology, defines the meaning of each bonobo gesture by analyzing reactions and satisfaction levels.
A study by the Universitat Autonoma de Barcelona finds that D-galactose affects male and female brains differently as they age. In high doses, it accelerates ageing in males, while females experience alterations in learning and spatial memory. However, low doses show positive effects in males, including improved learning and memory.
A new study at the University at Buffalo aims to measure the effects of PTSD symptoms on attention and cognitive control in police officers. The research, led by Janet Shucard, will examine brain structure and function in police officers using electrophysiological activity and psychological interviews.
A new review article provides a novice-level introduction to applying molecular genomics techniques to study complex behavior. The guide recommends specific tools and collaborations for behavioral ecologists, aiming to bridge the gap between behaviorists and genome annotators.
Texas A&M researchers discovered that inducing persistent changes in drinking behavior by manipulating neural connections may hold the key to understanding and treating alcoholism. The study found that reversing these changes could potentially lead to a decrease in alcohol consumption.
Researchers found neurons that fire at the beginning and end of a behavior, marking the start and end of habits. The study sheds light on how the brain groups behaviors together into routines.
A Cornell University study has identified genes in the brain that regulate social behaviors in fish, including reproduction, parental care, and aggression. The research found that these genes are expressed during flexible social behaviors, which is crucial for survival and reproduction.
Researchers at RIKEN Brain Science Institute identify a neuronal pathway that enables zebrafish to avoid carbon dioxide. The team found that the trigeminal sensory neurons and the habenula play critical roles in detecting carbon dioxide. These findings shed light on the neurobiology behind avoidance behaviors in animals.
A new study published in eNeuro found that a drug currently being evaluated for depression and suicidal tendencies also alleviates anxiety, fearful behaviors, and memory deficits in rats exposed to blast injuries. The drug, BCI-838, promotes the generation of new brain cells in the hippocampus.
A new Honeycomb Maze design offers a significant improvement over current spatial navigation tests, allowing for systematic analysis of animal decisions. The novel test replicates the advantages of the Morris Water Maze while providing a simple measure of success, demonstrating consistency and reproducibility in control animals.
A study found that prebiotics in infant formula can enhance memory and exploratory behavior in piglets, suggesting a potential link between gut health and brain development. The researchers also discovered changes in volatile fatty acid concentrations and serotonin levels in the brains of pigs fed with prebiotic supplements.
A team of researchers has devised a decoy molecule to disrupt the inception and persistence of pain memories. The RNA-based medicine reduces pain-associated behaviors by blocking the creation of pain-signaling proteins.
Scientists have discovered that a gene crucial for learning, called Arc, can send its genetic material from one neuron to another by employing a strategy commonly used by viruses. This new process may allow the toxic proteins responsible for Alzheimer's disease to spread through the brain.
A study on rats exposed to chronic stress found that cognitive behavioral therapy increases activity in the medial prefrontal cortex, a brain region linked to improved treatment outcomes. The research provides insight into how behavioral therapy can be targeted to improve its effectiveness.
Researchers found zebrafish larvae use 13 different patterns of movement combined in sequences to respond to situations, revealing the 'Lego pieces' of complex behaviors. The study's objective computational method revealed novel features of behavior that are not obvious from human observation.
Researchers at Tufts University have developed a novel preclinical model of postpartum depression, showing the involvement of the HPA axis and specific protein KCC2 in inducing disorder. The study provides empirical evidence that dysregulation of the HPA axis and KCC2 can lead to behaviors mimicking postpartum depression.
Research reveals that brain lesions affecting a specific network involved in moral decision-making are more common among individuals exhibiting criminal behavior. This finding highlights the potential link between brain dysfunction and crime, but also emphasizes that genetic, environmental, and social factors play important roles.
Researchers found a strong bond with family, religion, and land; positivity, work ethic, stubbornness, and self-confidence as common traits. Participants displayed better mental health than younger family members, despite poorer physical health.
Researchers at Johns Hopkins University found that stopping a planned behavior requires fast choreography between brain areas, including the prefrontal cortex and pre-motor cortex. They also identified the importance of timing in making successful changes to plans.
A new study reveals that hyperbaric oxygen therapy may correct behavioral and physical deficits associated with Alzheimer's disease. The treatment reduced plaque pathology by 40% and neuroinflammation by about 40%, improving the condition of mice with the disease.
Researchers found a complicated pattern of neural activity during different time intervals, with neurons adjusting their activity depending on the required interval. The brain doesn't change the trajectory when the interval changes, it just changes the speed at which it goes from the initial state to the final state.
Researchers found that fasudil, a drug that inhibits Rho kinase, promotes goal-directed behavior in mice by pruning dendritic spines, a process involved in learning new behaviors. The treatment showed promise in reducing cocaine self-administration and could be an effective adjunct to cognitive behavioral therapy for treating drug abuse.
New research suggests that stressed newborns may not display typical pain behavior despite increased brain activity in response to pain. The study found a disconnect between brain wave patterns and behavioral responses in stressed babies, highlighting the need for alternative methods to assess infant pain.
A new rat model of drug addiction, requiring daily puzzle-solving for cocaine reward, still produced substance use disorder symptoms. In contrast to traditional models, the rats relied on flexible problem-solving to maintain their addiction, contradicting the widely-held view that habit is necessary.
A special issue in the Harvard Review of Psychiatry explores the intersection of neuroscience and law, highlighting key areas such as addiction, dementia, chronic pain, and behavioral genetics. The research has significant implications for legal proceedings and mental health treatment.
A new study has identified a genetic basis for natural variation in aging rates, found to be regulated by a novel neuropeptide coding gene (rgba-1) and its receptor gene npr-28. This discovery provides new insights into the biological regulation of healthy aging.
Research in Frontiers in Behavioral Neuroscience found that challenging situations negatively impact the brain's ability to acquire spatial and sequential context. Participants performed poorly on tests after watching clips of positive, negative, and neutral situations.
The new Neuropixels probes enable scientists to monitor neural activity at hundreds of sites within the brain, providing a clearer picture of how different parts work together. Researchers can collect more meaningful data in a single experiment than current technologies allow.
A new study published in Nature Medicine finds that sleep-deprived individuals experience slowed-down neuron activity, affecting their ability to process visual information and respond to tasks. This slowdown can lead to lapses in attention and behavior, posing a risk for drowsy driving and other safety hazards.
Researchers have developed Neuropixels probes, thin silicon devices that record the activity of hundreds of neurons in mice and rats. This technology will allow scientists to understand complex neural networks and potentially lead to new treatments for diseases like depression and Alzheimer's.
University of Geneva researchers found that delayed neuronal migration in the fetus causes behavior disorders comparable to autism. They also discovered that correcting late neuron activity can restore interneuronal connections and prevent behavioral problems.
A study of two related fruit fly species reveals a single gene regulates behavior for attracting a mate, leading to distinct wooing techniques. The research suggests that the same neurons in both species evolved to generate different behaviors due to acquired gene expression.
A new study at Oregon Health & Science University found that brain activity patterns are inherited, with heritable relationships demonstrated within five brain systems. This discovery may lead to personalized and targeted treatment approaches for conditions like ADHD and autism.
A new high-throughput system enables rapid and standardized mouse behavior and physiology studies, reducing experimental animal usage and time requirements. The system aims to facilitate reproducibility and data sharing, addressing issues of varying training protocols and data comparison across labs.
A new Brown University-developed technology called trans-Tango allows scientists to visualize neural connections in fruit flies, revealing previously unmapped gustatory circuits. The technology enables circuit tracing and has the potential to control circuit functions, expanding its applications in neuroscience.
A team of researchers from the University of Pennsylvania and Yale University have identified the posterior cingulate cortex as a key brain region that motivates behavior change. By stimulating this area, people can become more exploratory and creative, suggesting its role in foraging efficiency and landscape adaptation.
Scientists have discovered that T cell activation leads to a depletion of amino acids in the blood, which in turn affects neurotransmitters serotonin and dopamine, causing anxiety and fear responses. In mice without PD-1 receptor, they found behavioral changes dominated by anxiety and exacerbated fear responses.
A new low-cost, easy-to-use, and self-made customizable piece of equipment called the ethoscope has been invented to study flies' behavior. Ethoscopes can automatically record fly movements and even manipulate them, saving researchers time and enabling more efficient studies.
Researchers studied pair-bonded titi monkeys to understand jealousy and its consequences. The study found that male monkeys exhibited increased testosterone and cortisol levels when watching their partners with a stranger, and brain scans revealed heightened activity in areas associated with social exclusion and aggression.
Research finds that social experience with a female mouse triggers separate neural populations and aggressive behavior in males, challenging the 'hardwired' hypothesis. The study reveals that even innate behaviors have a degree of plasticity and computation.
A new study by Matthew Wanat found that more dopamine is released when waiting for a reward, highlighting the importance of timing in decision-making. The research could provide valuable insights into understanding drug addiction, which hijacks brain regions where dopamine is released.
A study published by the American Psychological Association found that listening without visual cues improves emotion recognition. Researchers conducted five experiments with over 1,800 participants and discovered that voice-only communication yields more accurate results than combined visual and auditory cues.
Research reveals that female brains activate more strongly in response to prosocial behavior compared to male brains, which prioritize reward from selfish actions. Cultural conditioning plays a significant role in shaping these differences, as women are often rewarded for prosocial behavior, leading to stronger neural responses.
A new study suggests that decreased bullying exposure and family problems during childhood and adolescence could help reduce adult mental illness in extremely low birth weight preemies. Early mental health support for these individuals and their parents may also be beneficial.