Research on the brain basis of behavior. Covers reward and pleasure signals, attention in children, taste circuitry, and adaptive AI models.
A new study found that high-stress caregivers had higher klotho levels and longer telomeres in specific immune cells, which may provide protection against aging. In contrast, low-stress caregivers showed no significant associations between klotho levels and telomere length.
Researchers used machine learning algorithms to analyze brain imaging data and identify changes associated with autism spectrum disorder. The study found that the methodology could determine ASD diagnosis with above 95% accuracy, highlighting potential for improved diagnostic methods.
Researchers have discovered that gene therapy may prevent relapse in patients with serious alcohol addiction by altering dopamine function in the brain's mesolimbic reward pathway. The treatment involves sustained release of glial-derived neurotrophic factor (GDNF) in a specific region of the brain.
A study by Osaka Metropolitan University found that working in a shared space while performing craft activities boosts parasympathetic activity, leading to relaxation. The parallel group condition showed higher parasympathetic activity compared to the individual alone condition.
A study published in Neuron found that a structure in rat brains called the periaqueductal gray is essential for play and laughter. The researchers used tickling to simulate playful environments and measured brain activity, finding strong neural responses to both tickling and playing.
A Nagoya University research team discovered two distinct thermosensory pathways in the brain that transmit temperature information to different areas of the forebrain. Blocking one pathway was found to impair a rat's ability to avoid heat, while blocking another impaired its ability to avoid cold.
In a new study, Salk Institute scientists discovered that dopamine regulates anxious worm behavior in the presence of nipping predators. The findings illuminate how this dopamine-regulated brain pathway may be related to anxiety and could provide insight into human conditions like PTSD.
A team of researchers from Kyoto University and international institutions has developed a mathematical solution to the temporal asymmetry of nonequilibrium disordered Ising networks. This breakthrough offers insights into the behavior of biological systems, machine learning, and AI tools.
Researchers discovered that octopuses transition between quiet and active stages of sleep, with the latter resembling neural activity seen when awake. This active stage may be essential for octopus function and potentially related to dreaming.
Scientists found that drinking coffee increases connectivity in higher visual networks and executive control regions of the brain, leading to improved alertness and cognitive performance. In contrast, taking only caffeine did not replicate these effects, suggesting that the experience of drinking coffee plays a crucial role.
Cuttlefish use a highly flexible and dynamic system to change color and texture, with the ability to display a rich variety of skin patterns and adapt to both natural and artificial backgrounds. The study found that cuttlefish continuously receive feedback about their skin pattern and adjust it in real-time.
A recent study by the Hebrew University of Jerusalem has unveiled crucial insights into the brain's ability to regulate fentanyl consumption. The research discovered that claustral neurons can modulate fentanyl intake, suggesting a potential target for intervention in fentanyl addiction.
A study by University of Alabama at Birmingham researcher Minae Niwa found that adolescent psychosocial stress, combined with pregnancy and delivery, causes hypofunction of a key neural circuit. This altered circuitry leads to abnormal social behavior in postpartum women, including reduced interaction time with familiar mice.
A study published in Brain and Behavior found that humor therapy reduced symptoms of depression and anxiety in participants from various countries. The analysis included 2,964 participants and nine different countries, suggesting that humor therapy may be a feasible complementary alternative for clinicians, nurses, and patients.
Higher testosterone levels during adolescence enhance emotion control, but decrease in young adulthood; the study suggests a shift in testosterone's role across developmental periods. The findings may be related to mood disorders that arise during adolescence.
Researchers used fMRI to analyze brain activity in response to restaurant menu photos, finding a correlation between neural activity and dish sales. The study suggests restaurants can design menus based on predicted consumer preferences.
A study published in Cell Press reveals that ants have a dedicated brain region that processes alarm pheromones, triggering panic responses and colony-wide behavior changes. Researchers used GCaMP to scan the brain activity of clonal raider ants exposed to danger signals, finding a specific section lit up in response.
Researchers found that bumblebees use both vision and smell to navigate, with scent marks playing a crucial role in pinpointing the nest entrance in visually ambiguous situations. In experiments, bumblebees overwhelmingly focused on locations suggested by scent marks when visual landmarks were conflicting.
A University of Ottawa team has discovered a vital role for the VGLUT3 transporter protein in modulating the development of Huntington's disease. The study shows that blocking glutamate release through this protein can lead to an amelioration of the disease progression, offering new hope for potential treatment approaches.
A new study in mice reveals that a middle-brain region controls aggression towards young animals, while another region promotes maternal behavior. The findings suggest that the brain mechanism behind infanticide by women may be similar to that in males.
Researchers at the University of Rochester Medical Center found that predicting movement is crucial for eye-and-hand coordination. The study used high-speed cameras and AI methods to analyze primate behavior and developed a detailed model of vision-guided reaching behavior.
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.
Adolescent neurostimulation of dopamine circuitry may reverse genetic deficits in frontal cortex function, rescuing structural and behavioral deficits caused by disorders. Researchers identified critical windows in brain development where interventions can target and change the course of diseases.
Researchers observe 'social motor entrainment' in macaques, where movements synchronize with others, and find it varies by animal pairs, social hierarchy, and stimulus type. This study provides insights into the neural underpinnings of social cohesion and has implications for understanding human conditions like autism spectrum disorder.
Researchers used EEG to study consumer behavior and found that men are willing to pay more for premium chocolate, especially if it's expensive. The study also showed that packaging can influence willingness to pay, with well-known brands increasing prices by 9.9%.
Researchers have identified a novel model and therapy to mitigate the development of REM sleep behavior disorder, which affects over 3 million Americans. Dual orexin receptor antagonists have been shown to significantly reduce dream enactment behaviors, providing a promising new treatment option.
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.
Researchers have developed a new method to study ant brain chemistry, revealing differences in neuropeptide distribution between two species. The approach integrates 3D chemical data with high-definition anatomical models, providing unbiased visualization of neurochemistry.
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.
Mosquitoes use human body odor to find hosts over long distances, with specific airborne components making some people more attractive than others. Researchers found that carboxylic acids and eucalyptol are key contributors to this attraction, with varying levels affecting mosquito choosiness.
A new study from Baylor University's Sleep Neuroscience and Cognition Laboratory reveals that chronotypes can fluctuate across a semester, with evening-type students showing worse sleep quality and duration. Engaging in healthier daytime behaviors can lead to better sleep, improving daytime life and academic success.
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.
The study found that vaccine type significantly impacts the immune response to COVID-19, with Pfizer and Moderna offering a stronger antibody response than Johnson & Johnson. Age, sex, BMI, and smoking status also affect vaccine effectiveness, with smokers experiencing a 240% lower response.
KNT-127 exhibits anti-stressing and anti-depressant effects in mice, improving social interaction and reducing stress-induced hormone levels. The agent suppresses neuronal inflammation and newborn death without affecting neurogenesis.
Researchers found that right hippocampal theta power hierarchically encodes the distance between current position and goal destination. The study used intracranial electroencephalography recordings from epilepsy patients performing a virtual navigation task.
Researchers discovered that sleep spindles can alleviate anxiety in people with post-traumatic stress disorder (PTSD), contradicting recent findings. The study found that spindle rate frequency was higher during a stressful visit than a control visit, suggesting non-invasive ways to harness the benefits of this sleep stage for symptom ...
Researchers at Sainsbury Wellcome Centre found that instinctual exploratory runs enable mice to learn a map of the world efficiently. The study demonstrates how biological brains can learn faster and more efficiently than AI agents by focusing on salient objects.
The AChemS meeting brings together scientists to understand the fundamental mechanisms of chemosensory systems and their impact on behavior. Key findings include presentations on learning and memory in the chemical senses and physiology of extraoral taste receptors.
A recent study published in NeuroImage found that older adults with improved cognitive performance during dual-task walking had flexible neural resource allocation. This discovery suggests a potential method for tracking brain health and identifying individuals at risk of aging-related cognitive decline.
A new study found that emotion-focused therapy increased activation and connectivity of the amygdala in patients with bipolar disorder, leading to improved emotion processing. In contrast, cognitive-behavioral therapy showed increased activation of brain regions related to social function but not altered amygdala activity.
Despite emotional challenges like negative affect and fatigue, response inhibition can enhance divergent thinking by partially mediating the relationship between emotional states and creative potential. Frustration, when handled differently, can be a catalyst for invention and creativity.
Researchers at UCLA Health discovered that astrocytes, traditionally considered the brain's support system, are involved in obsessive-compulsive disorder-related behaviors. The study suggests that targeting both neurons and astrocytes may be effective for OCD treatment.
Researchers discovered an Asian elephant named Pang Pha's exceptional banana-peeling ability, which suggests that elephants have impressive cognitive and manipulative skills. The study found that Pha learned to peel bananas through observational learning from humans, challenging the idea that such complex behaviors are unique to humans.
Researchers found that players' brains respond differently to human and machine opponents, with desynchronization indicating active calculations. The study suggests that training with machines may not replicate the experience of playing against humans.
A team of scientists at MUSC identified a key gene that plays a role in the link between long-term stress and a common type of depressive behavior in mice. The study suggests that there may not be one central mechanism by which stress causes depression, but rather multiple pathways connecting stress with different symptoms.
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.
Researchers have discovered that the amygdala uses specialized neurons to learn about threats and rewards, a finding that could lead to more effective treatments for anxiety and drug addiction. By studying how these neurons respond differently to various stimuli, scientists have gained insights into the brain's reward system.
A systematic review and meta-analysis found that phototherapy improved cognitive function in patients with dementia. The analysis of 12 randomized clinical trials revealed no significant impact on symptoms of depression or sleep quality.
Researchers found that COVID-19 infection leads to rapidly progressive dementia, blurring the lines between different types of dementia. Cortical atrophy and inflammation were key indicators, suggesting previously compromised brains have limited defense against new insults.
A study by Duke-NUS Medical School researchers analyzed tens of thousands of student data to determine the impact of early class start times on attendance, sleep behavior, and academic performance. The findings suggest that students who attend early morning classes often lose an hour of sleep and experience lower grades.
A recent study published in Communications Biology used thermal imaging to capture the social dynamics of 'pee-shy' mice, revealing that males adjust their urine marking behavior based on their past interactions. The research provides insight into how animals manage their social signaling, a crucial aspect of their survival and evolution.
A community-engaged approach to research prioritizes the concerns of participating communities, leading to a better reflection of community needs and issues. By incorporating CBPR, researchers can minimize biases and increase public trust in science.
Researchers found that humans achieve dynamic balance by taking turns, while monkeys use static strategies that often result in one player losing out over time. Monkeys can learn to coordinate dynamically with human partners but then compete with each other.
A study found that preterm infants do not habituate to repeated pain, unlike full-term infants. This lack of adaptation may affect their brain development and increase vulnerability to pain. The researchers' findings suggest that the ability to adapt to pain might develop during the third trimester of pregnancy.
A Dartmouth study found that COVID-19 can cause 'prosopagnosia,' or face blindness, and impairments in navigational abilities. Researchers worked with a patient who experienced difficulty recognizing faces and navigating, leading to dissociation between face recognition and cognitive map representation.
A University of Houston study found rural Americans are more anxious and depressed, with reduced openness and neuroticism compared to urban residents. Access to mental health services is believed to be a contributing factor.
Recent studies have identified key psychological processes, such as repetitive negative thinking and self-reflection, that may impact cognitive aging and dementia prevention. Researchers propose incorporating psychological elements to reduce dementia risk through cognitive-behavioral interventions.
New research from Harvard Medical School reveals that female mice display more consistent exploratory behavior despite hormonal fluctuations. This finding highlights the importance of including both sexes in neuroscience experiments to gain a deeper understanding of the brain and its functions.
Researchers discovered that fruit flies have distinct hunger drives, one driven by need and the other by pleasure, which arise from unique neural mechanisms. The study found that hungry flies increase feeding event duration and total events, and identified specific brain regions activated by pleasurable food environments.
Researchers have found that honeybees use linear landscape elements, such as irrigation channels, to guide their search flights when looking for their hive in new areas. The bees retain a navigational memory of their home area based on these elements, which they generalize to the new area to find their way home.