Research on the brain basis of behavior. Covers reward and pleasure signals, attention in children, taste circuitry, and adaptive AI models.
A European teen imaging study has identified 40 predictor variables, including genetics, brain function, and personality, that can predict teenage binge-drinking with 70% accuracy. The study found that having a family history of drug use, sensation-seeking traits, and impulsivity were among the key predictors.
A new smartphone-based system detects changes in patients' behavioral patterns and transmits them to professionals in real time, facilitating patient observation and improving clinical psychiatry. The technology has the potential to greatly improve response time and efficacy of clinical psychiatrists.
Elsevier has launched a new review journal focused on behavioral sciences, providing updates on the field through educational forums. The journal will co-edited by Professors Trevor Robbins and Cindy Lustig, showcasing novel breakthroughs and significant trends.
A new study reveals a correlation between unhappy marital interactions and a higher risk of cardiovascular disease, as well as thicker carotid arteries. The research found that individuals with positive marital interactions had an 8.5% greater risk of heart attack or stroke.
Exposure to neuroscientific information diminishes people's support for retributive punishment and perceived moral responsibility. Students who learned about brain processes proposed less severe punishment than their peers, indicating a shift in moral attributions.
Smokers who struggle to quit may have weaker response to rewards in their brains, making it harder to overcome nicotine addiction. Researchers used fMRI to study the striatal response to monetary reward in smokers expecting to smoke and those not planning to do so.
New research reveals how a quick-escape circuit in the fly's brain overrides slower behavior when an urgent threat is detected. Flies can choose between long and short escapes, with quicker escapes often resulting in clumsier movements.
Researchers at the University of Minnesota found that rats were willing to wait longer for certain flavors, indicating individual preferences. The study suggests that regret is a fundamental cognitive process shared among mammals.
Researchers at Yale School of Medicine discovered that leptin affects not only brain cells called neurons but also other types of cells involved in appetite regulation. This finding could lead to the development of new treatments for metabolic disorders such as obesity and diabetes.
A study found that observing e-cigarette use increases young adult smokers' desire to smoke both combustible and e-cigarettes. The study suggests a need for policy attention on the secondary effects of e-cigarette use on observers.
A new study has shed light on the role of dopamine-dependent reinforcement signals in the nucleus accumbens, a region connected to pleasure seeking and drug addiction. The research, using optogenetics, reveals how glutamate-dependent signals from other brain regions interact with these signals.
In a study published in Science, researchers found that fruit flies accumulate information before making decisions, suggesting a level of intelligence. The study identified a key gene, FoxP, involved in this process, which may also be linked to human cognitive development and language abilities.
A new study by Sam Houston State University found that gang members are twice as likely to become both victims and offenders of a crime than non-gang members. The study suggests that gang membership is a common source of both forms of violence, with group processes and norms facilitating trading places between victim and offender.
Drs. Brian E Chen and Stephanie L Borgland were awarded the CAN Young Investigator Award for their innovative work in neuroscience, with Dr. Chen studying brain wiring encoded in DNA and Dr. Borgland exploring neural mechanisms behind addiction and obesity.
A stress-diathesis theory explains why only a small minority of individuals are at risk of suicidal behavior after exposure to stressful life experiences. Biomarkers based on genetic effects and brain imaging may help detect high-risk individuals.
Researchers found that pain from inflammation reduces sexual motivation in female mice, but has no effect on male mice. Female mice spend less time with a partner and exhibit reduced sexual behavior when in pain.
Research reveals that Chinese ethnicity is a stronger factor than culture in determining eye movement patterns, contrary to previous reports. The study found that similar numbers of British Chinese and mainland Chinese participants made high numbers of express saccades.
The BRAIN Initiative aims to map all cell types in the brain, develop methods for large-scale recordings of neuronal activity, and advance computational methods to understand patterned neural activity. The ultimate goal is to shed light on disease processes and suggest new therapeutic approaches.
A study found that teenage drivers with a higher response to stress, as measured by cortisol levels, had lower crash and near-crash rates. Cortisol levels were measured at baseline and over time from saliva samples, and in-vehicle cameras and sensors allowed continuous observation of driving.
Researchers find the lateral habenula controls sensitivity to the negative effects of drinking alcohol, leading to increased drinking behavior when the region is inactivated. This study provides new insights into addictive behaviors and may help identify individuals at risk of becoming problem drinkers.
The study found that positive thinkers had less brain activity during a task where they were asked to put a positive spin on graphic images, while worriers showed increased activity. This suggests that positive thinking may be harderwired in the brain and could have implications for how negative thinkers approach difficult situations.
Research by Cold Spring Harbor Laboratory finds that early-life chronic stress can cause anxiety, depression, and decreased social interaction in adulthood. In contrast, young mice subjected to social defeat stress showed resilience, but still experienced increased aggression as adults.
A 'stop mechanism' was found to regulate drinking behavior by detecting thirst levels and preventing overdrinking. The study, published in Proceedings of the National Academy of Sciences, identified brain regions that determine the signals to stop drinking, potentially preventing complications from excessive water intake.
Researchers developed a new technique using spatial light interference microscopy (SLIM) to measure human neural networks, showing how neurons grow, organize, and transport materials. The study provides insights into the formation of neural networks and could lead to advancements in understanding diseases like Alzheimer's.
Researchers have created the first maps of neural activity in behaving zebrafish, recording activity from single cells to entire brains. The study reveals stereotyped patterns of activity between individuals, enabling a functional atlas of the brain to be built.
Researchers at the University of Cambridge and MRC Cognition and Brain Sciences Unit have shown that suppressing unwanted memories reduces their unconscious influence on behavior. The study found that suppressing visual memories made it harder for people to later see the suppressed object compared to other recently seen objects.
Researchers at the University of Montreal found that increased psychological distress and depression symptoms are associated with high cortisol levels, while severe burnout is linked to low cortisol concentrations. This study aims to develop more accurate screening tools for mental health professionals.
Research Methods for the Behavioral Sciences, a comprehensive pedagogical text, has been recognized with the 2014 Most Promising New Textbook Award. The award acknowledges the book's innovative approach to introducing research methods, integrating statistical analyses and real-world examples.
A collaborative effort has created a standardized nomenclature for the architecture of insect brains, tripling the number of identified structures. This will enable future research on brain function and disease to be more efficient and accurate.
A recent study published in Psychiatry Research found that nearly half of people taking anti-depressants reported experiencing psychological problems, such as suicidal feelings, sexual difficulties, and emotional numbness. The research highlights the need for better awareness and disclosure about these side-effects.
Researchers found that collecting and bleeding horseshoe crabs for biomedical purposes causes short-term changes in their behavior and physiology. The study suggests delaying the blood harvest or improving transportation conditions could help the animals recover and breed again, potentially mitigating population declines.
Researchers discover that the habenula, a brain structure, acts as a switchboard for sensory information, regulating behavior in response to external stimuli. Spontaneous neural activity plays a key role in this process.
The study, published in Science in June 2012 to May 2013, mapped the wiring diagram for the nervous system controlling mating behavior in male roundworms. The research provided a comprehensive map of neural connections and contributed significantly to understanding how animals control complex behaviors.
Researchers have pinpointed areas of the brain that act as an 'arbitrator' between habitual and goal-directed systems. This mechanism ensures optimal control over behavior by weighing the reliability of predictions from each system.
The article 'Not Hardwired: The Complex Neurobiology of Sex Differences in Violence' describes the complex biological mechanisms in the brain that lead to the development of behaviors. Brain structure, function, and connectivity can differ between men and women, affecting how they respond to stressful or abusive triggers.
A new study published in PNAS found that recording the activity of just 50 neurons can accurately capture the behavior of larger neural networks. This challenges decades-long research on response time and accumulator models in psychology and neuroscience.
Researchers have found that neurons in the basal ganglia can signal the concatenation of individual elements into a behavioural sequence. The study's findings suggest that the brain uses a mechanism called chunking to organize memories and actions.
Researchers found that adolescent rats exposed to THC experienced molecular changes and increased motivation to self-administer heroin in their adulthood offspring, highlighting potential long-term effects of marijuana use on future generations.
Research reveals that levels of depression and anxiety among people with severe rheumatoid arthritis are significantly higher than previously reported. The study suggests that routine screening for depression is crucial, as untreated depression can impact treatment outcomes. The researchers propose modifying the current disease activit...
Duke researchers found that neurons in the superior colliculus use two different strategies when responding to visual and auditory stimuli, contradicting previous theories. This discovery opens up a mystery regarding the underlying mechanism of how vision captures sound.
Researchers developed a new paradigm to analyze collective animal behavior using machine learning without tracking individual animals, mirroring human observation. The technique successfully distinguished between species and changes in behavior in response to stimuli.
A unique study of white-throated sparrows found a genetic pathway connecting aggression and parenting behaviors to specific genes, specifically the estrogen receptor alpha (ER-alpha) gene. The research showed that variation in ER-alpha expression predicted behavior in territorial aggression and parenting.
Rats will help a stranger in distress if they have had prior positive social interactions with the type of unfamiliar individual. This behavior is driven by social experiences and not genetics or kin selection. Rats are able to categorize others into groups and modify their social behavior accordingly.
A new study demonstrates that ultrasound directed to a specific region of the human brain can enhance sensory perception. The technique showed significant improvements in distinguishing pins at closer distances and detecting small frequency differences.
Researchers at the University at Buffalo used optogenetics to stimulate dopamine neurons, reducing binge drinking behavior in rats. The technique has potential applications for treating alcoholism, mental illnesses, and neurological diseases.
Researchers identified a gene called Cyfip2 involved in the response to cocaine by comparing closely related mouse strains. The study suggests a potential link between this gene and human cocaine addiction, although further research is needed.
Researchers compared optogenetics and electrical stimulation in nonhuman primates, finding that both techniques increased accuracy in visual decision-making. Optogenetics showed advantages in precision and simultaneous recording of neural activity.
A study published in Cerebral Cortex found that mice raised without a father exhibited impaired social behavior, increased aggression, and altered brain anatomy. The findings suggest that paternal presence during critical growth periods is essential for healthy child development.
Researchers found that occupational therapy using sensory integration (OT-SI) provided better outcomes than standard care for children with autism. OT-SI therapy helps improve processing of sensation, leading to better participation in everyday activities.
Scientists at UCLA have made a breakthrough in understanding the biology of autism by mapping groups of autism-risk genes by function. They found that gene variants are expressed in the developing brain during critical processes, disrupting neural circuits and leading to miswiring between brain regions.
A new monkey study links impulsivity, rewards, and ADHD medication Ritalin, shedding light on the brain's reward processing mechanism. The study found that methylphenidate improved impulsive behavior in monkeys, but did not eliminate it, suggesting a potential link between the drug and temporal discounting.
Experiences can modify genes involved in memory formation and drug use, leading to long-term brain changes. This epigenetic phenomenon affects normal development and abnormal processes like depression and psychiatric disease.
A study of 1,300 students found that those who trained with Lumosity showed significant improvements in a battery of cognitive assessments. The effects were dose-dependent, with longer training sessions leading to greater gains.
Studies show that absence of serotonin receptors during early development leads to highly aggressive behavior in mice, while adolescents exhibit increased impulsivity to danger. The findings have potential applications for treating disorders related to impulsivity and aggression.
A University of Michigan researcher is using neurogenetics and behavioral studies to understand the development and treatment of antisocial behavior in boys. The study found that environment, including social support, moderates the link between over-reactive amygdala responses and anxious behavior.
A recent study published in PLOS Biology reveals that a majority of rhythmic proteins are produced during two intervals of the circadian cycle, with proteins required for metabolism showing peak production during the day and those required for cell growth at night. This discovery provides new insights into the regulation of protein pro...
Research by Véronique Bohbot reveals a direct link between stimulus-response learning and increased substance abuse, particularly smoking, alcohol and cannabis use. A developed striatum is associated with this behavior.
Researchers at Michigan State University developed a simple 'noun-verb' test to measure creativity, finding that those who gave creative answers in the test were indeed the most creative as measured by other methods. The test could help create better educational and training programs to foster creativity.
Khaleel Razak's research aims to develop therapies for age-related hearing problems and Fragile X Syndrome by studying how the brain processes everyday sounds. His lab will investigate neural computations that generate cortical maps underlying sound localization behavior in the pallid bat.
Researchers at Ohio State University discovered a link between newborn infections and later behavior and movement problems. The study found that inflammation in the brain blocks cells from accessing iron needed for brain development, leading to reduced myelination and behavioral impairments.