A new study published in Frontiers in Behavioral Neuroscience has found that fans of action films and comedies react strongly to negative emotional stimuli, while those who prefer documentaries or crime films show a weaker reaction. The research suggests that people choose film genres that optimally stimulate their brains.
A study in Current Biology mapped a brain circuit responsible for detecting threats and forming fear memories. The hippocampus and subiculum are key structures involved, with the subiculum transferring information to the hypothalamus.
Researchers have discovered a new type of brain cell in the medial entorhinal cortex that accurately predicts future locations as an animal travels. This discovery helps explain how planned spatial navigation is possible and has important implications for understanding mechanisms of spatial navigation and episodic memory formation.
The UNLV study found that brain activity patterns change with the number of experiences, not time, and that increasing speed affects perception. The research suggests that our brains register a 'vibe' about time, making it faster when we're having fun or doing tasks efficiently.
Researchers used advanced brain imaging techniques to identify key regions and networks involved in creative thinking. The Default Mode Network (DMN) was found to play a crucial role, with activity originating from the DMN before being evaluated by other brain regions.
The study reveals a unique, ring-shaped organization of the antennal lobe, with specific glomerular clusters encoding different odors. This coding mechanism differs from other insects and vertebrates, with the representation of odor valence encoded in higher brain centers.
Researchers have developed a highly sensitive diamond quantum magnetometer that can achieve practical ambient condition magnetoencephalography. The novel magnetometer uses a single crystalline diamond to detect magnetic fields, achieving record sensitivities of up to 9.4 pT Hz-1/2 in the frequency range of 5 to 100 Hz.
A new study shows that psilocybin initiates a pattern of hyperconnectivity in the brain linked to the ego-modifying effects and feelings of oceanic boundlessness. The findings provide insights into how the brain works on psychedelic drugs and their potential use to treat psychiatric disorders.
SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateMay 23, 2024
Researchers from Kobe University developed an AI image recognition algorithm that can predict mouse behavior based on brain functional imaging data, achieving 95% accuracy. The model identified critical cortical regions for behavioral classification and demonstrated near real-time speeds.
A team of researchers created the first brain-wide map of prairie voles during mating and pair bonding, discovering 68 distinct brain regions active across seven circuits. The study found that male ejaculation elicits a profound emotional state in both males and females, coordinating the formation of a bond.
The ultra-high resolution NexGen 7T scanner allows neuroscientists to see functional MRI features 0.4 millimeters across, enabling the study of brain circuitry underlying different diseases with higher spatial resolution. This will help track signals propagating through the brain and reveal underlying causes of developmental disorders.
A team of neuroscientists and physicists at Princeton University studied the brain of Caenorhabditis elegans to understand how information flows through a network of interacting neurons. They used optogenetics to activate individual neurons and observe how other neurons responded, shedding light on the complex neural connections.
A research team has developed a new method for mapping brain activity to understand behavior changes in patients with neurological disease. The technique uses CaMPARI images to track brain activity and can be used to study the effects of Alzheimer's disease on brain function.
The Digital Twin Brain platform combines intricate brain atlases and dynamic neural models to simulate human brain functions. This innovative approach holds promise for advancing artificial general intelligence and precision mental healthcare.
Researchers aim to create detailed maps of neuronal connections in sections of mouse and macaque brains, with the goal of creating full wiring diagrams. The projects use innovative techniques such as transmission electron microscopy and barcoded connectomics to visualize brain cell shape and cell-to-cell connection networks.
A team of scientists has developed a rigorous accounting of the neurons in the tiny brain of a humble C. elegans worm, mapping out how its brain cells encode essential behaviors such as movement and feeding. The atlas reveals the underlying logic of how the worm's brain produces a sophisticated repertoire of behaviors, even as environm...
Research from UTHealth Houston reveals that different brain regions are engaged when processing simple versus complex melodies and sentences. The study used intracranial electrodes to map brain activity during music and language tasks, finding shared temporal lobe activity but distinct sensitivities to melodic and syntactic complexity.
A new study by investigators from the Brigham and Women’s Hospital found that lesions associated with epilepsy are connected to a common brain network, suggesting the brain connections disrupted by the lesions are key. This discovery may have clinical implications for predicting epilepsy risk and targeting treatments.
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.
Researchers identified structural changes in the thalamus and strengthened connections with the temporal cortex, enabling visual cortex activation through non-visual stimuli.
A team from McGill University has created a database called neuromaps, which combines over 40 existing brain maps to help scientists find correlations between patterns across different brain regions. The tool provides standardized space to view and compare each map, improving reproducibility of results.
The CMU Array, a new microelectrode array, offers customized treatments for neurological disorders by allowing for three-dimensional sampling and ultra-high-density configurations. This technology has the potential to transform how doctors treat conditions like epilepsy and limb function loss.
Researchers from Xi'an Jiaotong-Liverpool University found that brain stimulation combined with a nose spray containing nanoparticles can improve recovery after ischemic stroke. The treatment increased cognitive and motor functions, and weighed more quickly than those treated with TMS alone.
Researchers at the University of Rochester Medical Center used fMRI to study how the brain processes complex audiovisual speech. The study found that watching a narrator tell a story activates an extensive network of brain regions involved in sensory processing and cognitive functions associated with comprehension. This finding has pot...
Children with obesity who lose weight show increased hunger-related brain activity, despite changes in gut hormone levels. This disconnect may underlie why many people regain weight after a strict diet, highlighting the need for targeted treatments.
A new AI-based dynamic brain imaging technology has been introduced by Carnegie Mellon University, which can map out rapidly changing electrical activity in the brain with high precision and speed. The technology uses deep learning approaches to translate scalp EEG signals back to neural circuit activity without human intervention.
Inhibitory and excitatory neuronal circuits develop through different processes, with inhibitory neurons requiring visual experience to form mature functional maps. This discovery sheds light on the importance of continued study of inhibitory neural development and its connection to neurodevelopmental disorders.
Researchers developed a laser-based diamond sensor that can measure magnetic fields up to 10 times more precisely than standard techniques. This innovation could help improve on existing magnetic-field sensing techniques for mapping brain activity to identify disorders.
Researchers have elucidated principles of human brain organisation across visual, auditory, somatosensory, and motor functional systems. The study revealed systematic changes in receptor architecture and gene expression within each system, reflecting increasing complexity of information processing.
A recent study published in PNAS Nexus found that brain scans can accurately predict a person's political ideology, regardless of whether they are performing tasks or simply thinking. The study used functional magnetic resonance imaging (fMRI) scans and artificial intelligence techniques to analyze the brain activity of 174 healthy adu...
Researchers at Cedars-Sinai have comprehensively mapped molecular activity in the brain and spinal cord that regulates body's response to central nervous system (CNS) disorders. They discovered a critical role of astrocytes, specialized support cells, in regulating outcomes for CNS disorders.
Researchers propose a new method to study neural networks using intrinsic signal optical imaging (ISOI), which provides detailed maps of brain activity in living subjects. The study shows that ISOI can reveal cortical architecture at columnar resolution, offering a more accurate picture of brain network activity than existing methods.
Researchers found a correlation between Parkinson's gene alpha-synuclein and vocal production in zebra finches. The study suggests that this link could lead to earlier diagnoses and treatments for Parkinson's patients.
Researchers are combining optogenetics and fMRI to study the links between brain activity and behavior. This hybrid approach allows for targeted manipulation and monitoring of brain function in awake and behaving rodents, providing valuable insights into neural mechanisms.
The Mini2P allows for live imaging of thousands of neurons, recording complex behavior and cognitive functions in a naturally behaving animal. By mapping neural landscapes across the cortex, researchers can gain insights into high-resolution brain activity and function.
Scientists have developed a new technology to decode brain activity and infer the meaning of a person's mental picture. The study used electrocorticogram to detect patterns in brain activity while patients imagined different images, revealing distinct representations for each concept. This breakthrough could lead to the development of ...
Researchers have developed a new approach to studying brain activity, allowing for longer-term studies and improved understanding of neural traffic jams. The new cranial window system uses surgical glue and a tiny glass window to capture high-quality blood flow imaging and stable electrical recordings.
A large-scale study aims to understand how individual brains change over time, identifying factors that increase cognitive decline risk and those that confer resilience. The Adult Aging Brain Connectome study will follow 1,000 participants across a decade, collecting brain scans, blood samples, and demographic data.
A study by Professor Kazumichi Matsumiya from Tohoku University's Graduate School of Information Sciences has discovered separate body maps for different motor systems. This finding can contribute to the development of new diagnostic techniques and rehabilitation strategies for patients with motor dysfunctions.
The new sensor grids offer 100 times higher resolution than existing technology, allowing for more precise identification of seizure origins and preservation of healthy brain tissue. Longer term, the technology holds potential for permanent implantation to improve life quality for people with paralysis or neurodegenerative diseases.
Researchers at the University of Trento discovered brain cells acting as a compass for navigating conceptual spaces, similar to those found in physical environments. These 'head-direction cells' signal direction even when movement occurs in abstract spaces, suggesting a complementary mechanism for conceptual navigation.
Studies using virtual reality environments revealed that individuals with anxiety disorders exhibited increased brain activity in response to perceived threats, even in safe areas. The findings highlight the need for personalized treatments that help patients regain control over their body.
Researchers at Skoltech propose a method for interpreting brain activity data that is up to five times more accurate than the conventional technique. This method can help treat drug-resistant epilepsy and understand cognitive processes in the healthy brain.
A review of current literature found irregular brain responses to challenging tasks and mistakes may be key to understanding links between abnormal behaviors in mental illness and cognitive disorders. Studies suggest that people with conditions like anxiety, OCD, and ADHD have different brain waves following mistakes compared to health...
A study found that adults with a history of childhood maltreatment, particularly sexual abuse, exhibit reduced brain connectivity in attention systems. Oxytocin treatment has been shown to increase connectivity, suggesting its potential as a treatment for PTSD and childhood trauma-related disorders.
Researchers at GIST create an optical technique called optical speckle image velocimetry that can image dynamic changes in cerebral blood flow, allowing for the diagnosis of brain health. The technique provides high-time resolution and measures both speed and direction of blood flow.
Researchers discovered zebrafish neurons that monitor prediction errors to efficiently avoid danger, creating a 'hazard map' in the brain. This study sheds light on brain circuits shared across vertebrates, including humans.
Researchers at University of Toronto found that the brain's prefrontal cortex generalizes perceptual experiences from different senses, producing sensations even without direct experience. The study used functional magnetic resonance imaging and massage stones to capture neural activity patterns in the brain.
Researchers at Washington University found that neurons in the primary visual cortex exhibit 'drift' over time, changing their responses to the same stimulus even without learning or experience. This discovery challenges the notion of stable neural activity in sensory cortices.
Georgia State University researcher Vince Calhoun has received a $3.5 million grant to develop new methods for capturing dynamic connectivity in the brain and identifying biomarkers for early detection of Alzheimer's disease. The researchers aim to analyze real-time connectivity patterns to predict future cognitive decline.
A recent study found COVID-19 survivors exhibit abnormal patterns of brain connectivity associated with increased post-traumatic stress symptoms. The research team discovered three distinct states of functional connectivity in the brains of COVID-19 survivors, which are linked to symptom severity.
A team from the Russian Quantum Center developed a novel solid-state supersensitive room-temperature magnetometer capable of registering weak electrical sources in the brain. The device successfully detected alpha rhythm, a sinusoidal electric current in the back of the brain, and showed higher sensitivity than existing systems.
Researchers at Rice University have developed a model of how internal states and external stimuli shape the behavior of hydra, a tiny, jellyfish-like creature. By studying their neural networks, scientists can gain insights into fundamental principles that may apply to more complex animals.
Researchers found that factual language evokes stronger brain responses than possible language, highlighting the power of fact-based communication in processing information. The study's findings suggest that our brains have a specialized representation for factual information, which is distinct from those for possibilities.
Researchers at the University of Turku studied how horror movies affect brain activity and found that unseen threats are the scariest. The study revealed that brains continuously anticipate and prepare for action in response to threat, making horror movies an effective way to enhance excitement.
A study on foot painters reveals they have finely tuned toe maps in their brains, which were previously thought to exist only in non-human primates. The findings suggest a critical period for brain plasticity early in life and raise questions about how humans adapt to limb loss or changes.
A new research developed a platform to predict compounds with clinical potential for treating brain diseases. The platform uses machine learning and whole-brain activity imaging to identify drugs with higher therapeutic and clinical translation potential, accelerating the drug development process.
Researchers discovered a universal phenomenon where all brains are composed of the same wide spectrum of strong and weak links. Dendritic learning enables fast information flow through strong entry points, explaining the stable distribution of link strengths across all brains.
A new study published in Human Brain Mapping found that older adults' brains show more bilateral communication than younger brains. This increased communication helps maintain healthy cognitive function despite the negative effects of aging.
Researchers use machine learning algorithms with brain imaging technology to identify complex thoughts, such as 'The witness shouted during the trial.' The study found that the mind's building blocks for constructing complex thoughts are formed by the brain's various sub-systems and are not word-based. With an accuracy rate of 87%, the...