Articles tagged with Behavioral Neuroscience
Research at University College London reveals that small lies desensitize our brains to associated negative emotions and may encourage us to tell larger lies. The study found that the brain's response to lying declines with each lie, predicting bigger lies in the future.
Researchers at the University of Oregon found that mice rely on their vision to catch prey, providing a new model for understanding complex brain-vision interactions. This discovery may also shed light on human conditions such as attention deficit hyperactivity disorder (ADHD), where focusing on a single task is challenging.
A new Dartmouth study demonstrates a causal relationship between imbalanced brain activity and behavioral control during adolescence. Researchers found that an imbalance in prefrontal cortex and nucleus accumbens activity disrupts inhibitory control, leading to delayed learning and increased risk-taking behavior.
Researchers identify two distinct genetic markers, Rspo2 and Ppp1r1b, corresponding to negative and positive neurons in the basolateral amygdala of mice. These neurons regulate behaviors tied to negative and positive stimuli, respectively.
A study using genetically altered female mice found that a mutation in the histone deacetylase 4 (HDAC4) gene causes feeding and behavior abnormalities similar to those seen in patients with eating disorders. The research also identified a biological pathway associated with the risk of developing an eating disorder, which could lead to...
Scientists discovered that female brain structures change monthly in response to hormonal fluctuations, particularly the hippocampus which plays a crucial role in memories and emotions. The study aims to better understand premenstrual dysphoric disorder (PMDD) by examining the brain's monthly rhythm.
A recent study published in Neuron found that hunger is a strong motivational force that can curb rival drives states like thirst, anxiety, and social needs. In the presence of food, activated neurons mimic the state of hunger, suppressing competing systems and guiding motivated behavior.
Children with emotionally invested parents tend to be more successful due to their enhanced cognitive control, including improved memory, impulse resistance, and social behavior. This study suggests that a caring and emotionally attentive environment can have long-lasting benefits for children's future life skills.
Stanford researchers have identified a key brain circuit that regulates both sleep-wake cycles and the reward system, providing potential new therapeutic avenues for insomnia and other disorders. The discovery sheds light on how dopamine plays a crucial role in these processes.
A new research study has found a connection between chronic pain and anxiety disorders, with increased PACAP expression contributing to symptoms. Blocking this regulator could lead to a new approach in treating chronic pain and stress-related behavioral disorders.
Researchers at Georgia State University are investigating how the human brain has evolved to support technological learning. The study aims to identify unique aspects of the human brain and understand the factors that cause individuals to acquire technological skills differently.
A TSRI study found that a compound blocking the activity of brain-cell receptors can reverse signs of cocaine dependency in rodents, supporting a new therapeutic strategy against addiction. The treatment reduced behavioral measures of cocaine use and dependency, accompanied by normal TrkB signaling activity.
Researchers found that personality measures, charitable-giving behavior, and aging converge in the brain to reflect pure altruistic tendencies. General benevolence increases with age, particularly after 45, suggesting life experiences may plant seeds of pure altruism.
A new study from the University of Cincinnati found that 66.9% of college-aged women engaged in unprotected sex during their last encounter involving alcohol. The study suggests that stronger beliefs about alcohol promoting sexual risk-taking and motivation for sex to satisfy personal needs contribute to decreased condom use.
The NIDA grant will fund a new center combining behavioral neuroscientists, computational biologists, and geneticists to study addiction mechanisms. Researchers will analyze mouse populations with high genetic variation to identify predisposing traits, correlating them with human genomes.
Researchers identified a neural circuit that inhibits binge-like eating behavior in mice, suggesting a potential treatment for humans. A specific serotonin receptor, 2C, expressed by dopamine neurons, is crucial in suppressing binge eating.
Scientists have developed a rapid and robust protocol to generate functional human GABAergic neurons from stem cells in a single step. This allows for the creation of high-quality neuron populations for studying psychiatric disorders and rapidly screening drugs.
Scientists have developed a specific mechanistic explanation of beta waves, suggesting that excitatory synaptic stimulation from the thalamus drives pyramidal neurons to produce these waves. The theory is supported by computer models and measurements in animal models.
A Duke University study found a single chemical receptor in the brain responsible for OCD symptoms in mice. The receptor, mGluR5, was found to be overactive in mice with Sapap3 gene deletion, which mimics human OCD. When blocked, symptoms abated immediately.
A new study by Michigan State University researchers found that obese mice are more likely to overeat in response to environmental cues, driven by changes in the brain. The study suggests a neurobiological account for why obese individuals may be particularly vulnerable to food signals.
A new study by Michigan State University neuroscientist Alexander Johnson finds that obese mice are more likely to overeat in response to environmental cues due to altered brain responses. The study suggests a psychological and neurobiological account for why obese individuals may be vulnerable to food triggers.
Researchers found that brain networks mediating comfort food-induced stress relief differ between males and females, with unique effects in the female brain across the hormonal cycle. Female rats experienced reduced stress hormone response to a sweet sugar drink only during the proestrus/estrus stage.
Scientists track brain-cell activity in mice to gain insight into how the brain creates a map to a destination. The study found that two sublayers of cells in the hippocampus process different types of learning, with one layer creating a stable internal map and the other layer updating it during navigation.
A new meta-analysis in Biological Psychiatry reports associations between sleep disturbances and long sleep duration with increased levels of inflammatory markers. Treatments targeting sleep behavior may be a strategy for reversing inflammation and reducing risk of inflammatory illnesses.
Scientists have pinpointed D2 neurons as key players in regulating drinking behavior, discovering they discourage action and inhibit excessive consumption. Activating these 'no-go' neurons could help prevent problem drinking behavior, paving the way for new treatments.
A study by researchers at the University of Michigan found that long-term marijuana users show a decreased response in their brain's reward system, making them more susceptible to addiction. This decrease can lead to a blunted emotional response, also known as anhedonia.
Researchers from UNC-Chapel Hill and NC State University developed a new technology to improve imaging of neuronal activity in the brain, capturing images up to 9.5 square millimeters - a 10 times larger area than previously possible.
Researchers mapped the brains of teenagers with serious antisocial behavior problems, finding significant differences in structure compared to peers. Childhood-onset and adolescent-onset conduct disorders showed distinct patterns of brain development, highlighting the importance of early interventions.
A study by Vanderbilt University neuroscientist Suzana Herculano-Houzel found that birds have more neurons packed into their small brains than mammals or primates. The avian brain's smaller and denser neurons enable complex cognitive behaviors, rivaling those of primates.
Researchers tracked macaque monkeys' neural activity as they weighed options for juice rewards, predicting their choices based on brain patterns. The study sheds light on internal decision-making processes and could lead to implants to treat addiction, anxiety, and depression.
Researchers monitored nerve impulses in awake mice to study the flow of information between sensory perception and behavior. They discovered that different layers of the cortex handle impulses in unique ways while remaining coordinated with each other.
Researchers studied children with ADHD playing a game with changing rules, finding they struggled to adjust their behavior. Typically developing children adapted quickly, while those with ADHD showed only slight changes.
Researchers identified the mediodorsal thalamus as a key brain area involved in rapid information processing and decision-making. The study found that monkeys with lesions to this area struggled to adapt their behavior and make informed choices.
A new study found that early exposure to nicotine can trigger genetic changes affecting brain cell connections, leading to attention deficit hyperactivity disorder and other behavioral problems. Maternal smoking has been linked to these conditions, and the study provides a possible explanation for its long-term effects.
A new UCLA study found that teenagers' brains activate the same reward circuitry when seeing high and low social media likes, influencing their behavior. The study suggests that social media can have a significant impact on teens' willingness to conform and engage in risk-taking behavior.
Researchers discovered that endocannabinoids reduce activity in the OFC, promoting habit formation. This study suggests that targeting the brain's endocannabinoid system may alleviate suffering in disorders involving habitual control.
A study by Concordia University researchers found that cues associated with alcohol can trigger behaviors leading to addiction. The study used lab rats conditioned to associate a visual cue with ethanol, showing the rats began interacting with the cue rather than waiting for the reward.
Immune cells build a molecular memory of their first meal after eating a dying neighboring cell, shaping their inflammatory behavior. This discovery may lead to novel therapies for inflammatory disorders such as atherosclerosis, cancer, and arthritis.
UC San Diego scientists create innovative imaging system to study brain activity in free-moving fruit flies, providing first glimpse into neural processes underlying mating, learning, memory, and more. The 'Flyception' technique enables real-time monitoring of brain activity at unprecedented speed and precision.
Researchers discovered that differences in male and female brains develop from a ground state containing features of both sexes. Sex-specific wiring in the brain results in dimorphic behavior, with distinct patterns emerging in males and females.
Researchers identified a specific gene, KALRN, linked to impulsive behavior and binge drinking in teenagers. The study used a two-step approach to investigate genetic factors contributing to early experimentation with and abuse of alcohol.
Researchers at the University of Sussex discovered a genetic link between impulsivity and teenage binge-drinking, identifying a specific gene variant called KALRN. This finding may help understand why some young people struggle with controlling their urges for risky behavior like binge drinking.
A study from McGill University found that repeat drunk drivers and speeding offenders have unique emotional and behavioral profiles, making prevention strategies more effective when tailored to their characteristics. The research suggests that high-risk drivers respond better to targeted interventions addressing their specific traits.
Alexandre Pouget, a renowned expert in neural coding and spatial representations, will receive the prize for his work on probabilistic inference and its applications. Pouget's research focuses on general theories of representation and computation in neural circuits, with a strong emphasis on neural theories of probabilistic inference.
A Wayne State University Ph.D. student has been awarded a prestigious NIH fellowship to investigate the effects of stress on cigarette smokers. The research aims to understand how stress impairs brain function and increase the likelihood of relapse, with the goal of developing better treatments for patients.
A multidisciplinary team led by USC Viterbi Professor Maryam Shanechi aims to develop brain-machine interfaces enhancing human decision making through multimodal data modeling and multi-sensory processing.
Researchers created a mathematical model that reproduces the animals' internal calculations, revealing the existence of a 'separatrix angle' that changes throughout the day. The model predicts real-life behaviors in flight simulators and provides insights into monarch navigation.
Researchers found that observing others' risk-taking behavior changes one's own attitude towards risk, with the brain responding to this change in activity levels. The study also found that participants could learn and predict the risk-taking preferences of an observed peer.
A new study by Duke University researchers found that adult-onset offenders have a history of anti-social behavior from childhood and are more likely to struggle with mental health issues. The study, which tracked nearly 1,000 New Zealanders, suggests that the court system may not be addressing the root causes of crime in adults.
New research reveals that stressful events result in DNA de-methylation, leading to the suppression of gene expression and facilitating adaptive behavioral responses. The study also found a link between SAM, a compound produced by the liver, and stress-related responses in the brain.
A new study has found that neuroligin-2 may contribute to chronic pain by disrupting the body's inhibitory networks. This discovery provides a second theory for what drives the GABAergic system's loss of efficacy in people with chronic pain.
A CU-Boulder study found that daily monetary incentives increased fruit and vegetable consumption among participants. Internal motivation to eat such produce also increased over time, suggesting a potential direction for future incentive research in terms of psychological factors related to changing behavior.
Researchers at University of Oregon developed a line of transgenic mice expressing green fluorescent protein to visualize neural activity. The technique allows for real-time imaging of brain-wide activity across cortex, enabling studies of sensory processing, cognition, and brain development.
Researchers identified a specific brain circuit involving DR2 nerve cells that predicts risk-taking preferences in rats. The findings expand on human research, suggesting the circuit may also be relevant to humans.
Researchers found that pyruvate increases brain energy reserves and improves cognitive function in mice, including enhanced exploratory behavior and spatial learning. The findings suggest potential therapeutic applications for Alzheimer's disease and other neurodegenerative disorders.
Max Planck Florida scientists have optimized techniques for studying motor learning in neurons of the cerebellum, enabling prolonged assessment of neural activity. This breakthrough allows for further characterization of continuously engaged neurons during motor activity and normal behavior.
Scientists discovered the chemical circuits and mechanisms in the brain that separate food consumption from cravings. The study found that dopamine is involved in the approach or craving phase, while orexin-A is linked to consumption. These findings could lead to more specific and effective treatments for overeating and drug addiction
A study by UCSB psychologists found that challenging a person's belief in free will corrupts intuitive cooperation and leads to impulsive selfishness, but allows for recovery with time. Participants who were asked about their agreement with the statement 'I have free will' showed significant differences in their level of cooperation.
A study published in Scientific Reports found that writing a message to the perpetrator can disrupt the chain of unfair behavior, calming negative emotions and leading to fairer interactions. The researchers suggest this strategy as a way to stop the spread of injustice.
Researchers discovered a 'circadian circuit' in which clock neurons send signals to the central brain areas that regulate activity and sleep. This mechanism allows time information to be transmitted through the brain.