Articles tagged with Functional Magnetic Resonance Imaging
A study of 22 toddlers found that hippocampal activation was higher when they heard a previously learned song, regardless of playback direction. Correctly remembered locations associated with the song also showed stronger hippocampal responses.
Scientists have discovered how brain regions activate during memory recall in two-year-olds using functional MRI. The hippocampus plays a key role in forming and recalling memories, especially episodic memory, which involves remembering events and contexts.
A new study published in PNAS found that the brain's ventromedial prefrontal cortex plays a key role in forming expectations underlying effort-based choices. The study used fMRI to model neural computations for effort and reward, revealing a clear role for three brain regions: the vmPFC, dACC, and aI.
Researchers used functional MRI to study Nile crocodiles and found that complex stimuli like classical music trigger activation patterns in the brain. This suggests that fundamental neuronal processing mechanisms of sensory stimuli formed at an early evolutionary stage.
Researchers found that simply being told a musician is professional changes the way the brain responds to music, with more activity in pleasure and reward regions for 'professional' recordings. Overcoming this bias requires conscious effort, as participants who resisted the bias showed increased executive control.
Research at Goethe University Frankfurt reveals that the human brain prepares for dawn and dusk by reducing resting activity in the visual cortex, allowing it to process weak visual stimuli more effectively during these times. This mechanism may have provided an evolutionary advantage in the pre-industrial era.
A new study using fMRI scans found that Transcendental Meditation practice leads to a unique state of restful alertness, characterized by increased blood flow to frontal areas of the brain and decreased activity in pons and cerebellum. This finding supports the technique's claim to induce a deeply rested yet alert mental state.
A human brain imaging study found that LSD reduces activity in areas important for establishing one's sense of self, blurring the line between self and other. The serotonin receptor system appears to be a target for treating social impairments in disorders such as depression and schizophrenia.
A new technique developed by neuroscientists at the University of Toronto Scarborough can reconstruct images seen by test subjects based on electroencephalography (EEG) data. This method uses machine learning algorithms to digitally recreate images in the subject's mind, revealing fine-grained visual detail.
Researchers used functional MRI scans to measure brain entropy in 892 participants and found a strong link between higher entropy and intelligence, as measured by standard IQ tests. This suggests that brain imaging could one day help assess problems in brain function for conditions like depression and autism.
Researchers found that cognitive training improved neural activity in older adults, making their brains more energy-efficient. The study suggests that this non-pharmacological intervention could help counteract age-related cognitive decline and enhance brain health.
Researchers found that higher-level brain regions can compensate for persistent changes in sensory and movement areas following a hand transplant. The study suggests that non-invasive brain stimulation may improve recovery from nerve injury, paving the way for new approaches to neurorehabilitation for amputees and stroke patients.
A long-term study by Norwegian University of Science and Technology researchers has shed new light on the consequences of very low birth weights on cognitive development. The study found that individuals born with very low birth weights have difficulties with cognitive control, including proactive and reactive systems.
A Harvard researcher found that specific brain network patterns are associated with creativity, including the default mode network for imagination and the salience network for information filtering. The study's predictive model showed accuracy in estimating creative potential based on brain scan data.
A study using functional MRI data from 163 participants found a functional brain network associated with creativity involving the default mode, executive, and salience networks. The strength of this network's connectivity was linked to an individual's creative ability score.
Researchers found that altering the clothing worn by actresses affected empathic responses, with reduced feelings towards objectified women and reduced brain activity in empathy-related areas. The study suggests a link between objectification and diminished emotional understanding.
New fMRI applications help researchers map verbal and visual memory in children with epilepsy, demonstrating the potential for non-invasive fMRI to assess and diagnose pediatric epilepsy. A second study showcases the ability of resting-state fMRI to assess language laterality, paving the way for expanded use as a clinical tool.
Researchers used brain scans to analyze how people at risk of drug use process anti-drug messages. They found that certain neural connections in the brain predicted which messages were most persuasive, improving accuracy for high-risk participants.
Researchers used fMRI to study neurofeedback training's potential in treating tinnitus, finding a significant relationship between controlling the primary auditory cortex and attentional processes. The training involved participants focusing away from sound to decrease brain activity.
Youth football players undergo brain changes, including alterations in the default mode network, after a single season of play. This study suggests that repeated subconcussive impacts can have a lasting effect on brain health.
A new study found that playing position and career duration influence brain damage in former football players, with non-speed players experiencing more localized damage. The researchers used MRI techniques to analyze brain structure and function, suggesting that position-specific helmets may be warranted.
Researchers have developed an AI-powered technology that can decode what the human brain is seeing by analyzing fMRI scans from people watching videos. The breakthrough could lead to new insights into brain function and improve artificial intelligence.
A study using advanced MRI techniques found that brain connectivity can predict long-term recovery in patients with cardiac arrest-related brain damage. Functional connectivity was stronger in those who achieved higher levels of independence, and the interaction between default mode and salience networks was a key predictor of outcomes.
A research team led by Eva Dyer has imaged brains at a mesoscale using the most powerful X-ray beams in the country, revealing capillary grids interlacing brain tissues. The technique could open new windows onto how brain signaling networks work and potentially lead to better understanding of neurological diseases.
Researchers at UC Berkeley are building a new MRI brain scanner with improved resolution, allowing them to image functional regions in the cortex and connect individual neurons. The new scanner will enable studies of human brain function and circuitry on a finer scale.
Researchers have discovered that low-frequency activities in the hippocampus drive brain-wide functional connectivity in the cerebral cortex, enhancing sensory responses and learning. This breakthrough suggests the hippocampus is a key region in the brain, with potential therapeutic implications for Alzheimer's disease.
Researchers aim to accurately interpret functional magnetic resonance images (fMRI) of the brain, enabling better understanding of neural responses. By developing a computational tool, they hope to analyze fMRI data with finer resolution and gain insights into neural behavior.
A new study found that the insula plays a major role in generating spontaneous neuronal bursts in preterm babies, essential for strengthening brain connections. The bursts are also linked to healthier cognitive skills and reduced risk of cerebral palsy.
A study using fMRI scans found that reduced neural activity in teens at high risk of adult obesity may be an early predictor. The researchers discovered that lean adolescents with a family history of overweight parents showed less self-regulation activity than their peers.
Researchers at Beth Israel Deaconess Medical Center found that consuming walnuts activates the right insula, a brain area linked to cognitive control and salience. This activation is associated with reduced hunger and increased feelings of fullness.
Researchers manipulate brain connections to enhance or impair cognitive functions, offering potential therapeutic applications for psychiatric disorders and learning disabilities.
The study found that brain activity in regions called the default mode network represent a kind of higher-level processing, building up representations of what's happening in the world around us. Participants who had previously watched the 'Sherlock' episode could anticipate events and recall them in the same order, suggesting that chu...
Researchers at the University of Delaware used a new mirror box illusion to study how the brain processes multiple sensory inputs. The study found that the brain uses biomechanical constraints from the body schema to resolve conflicts between senses, with vision typically ruling but also considering additional information.
A Massachusetts General Hospital study found that fMRI and EEG can identify covert consciousness in ICU patients, allowing families to make informed decisions about care. The tests detected activity in higher-order cortex areas of the brain, which could have implications for patient recovery.
Researchers used fMRI to analyze brain activity in children with ASD, identifying relationships between emotional lability and neuronal activity in two brain regions. The study suggests that differences in neuronal network interactions may play a role in emotion regulation variability in individuals with ASD.
Researchers identified specific brain regions that correlate with improved social abilities after a virtual training program. Adults with higher brain activity in these regions showed better emotional recognition skills.
A new study from the UCLA School of Nursing found that the insular cortex, a region involved in stress and cardiovascular control, reacts differently between men and women when presented with certain stimuli. This difference may affect how cardiovascular diseases manifest and are diagnosed in each sex.
Researchers found that changing tasks frequently interferes with brain activity, leading to worse results than focusing on one task at a time. Brain areas like posterior temporal and dorsomedial prefrontal cortices work more efficiently when dealing with one task.
Gambling addiction is characterized by excessive risk-taking despite negative results, according to Kyoto University research. The study found that addicts have a poor ability to assess and adapt to high-risk situations, leading to an unhealthy bent towards risky choices.
Researchers used fMRI to explore the role of imagination and willpower on patience. They found that imagining consequences can increase patience without relying on increased willpower, and that this approach may be more sustainable than exerting willpower.
A new study found that brain signals associated with fullness are dulled in obese children, leading them to overeat and gain weight. Obese children's brains responded more strongly to high-calorie foods after eating, suggesting a blunted satiety response.
A study by Ohio State University researchers reveals that the brain combines 2-D and depth information when representing 3-D objects. The fMRI data showed that early visual areas focus on 2-D location, while later areas prioritize depth information, suggesting a gradual shift towards 3-D perception.
A new study by Wayne State University researchers suggests that brain networks at rest are potentiated for action. Using fMRI data, the team found increased network interactions from the SMA to the dACC during rest periods.
Researchers at Stanford University School of Medicine found that a time-honored mnemonic method can be taught to people with no prior hint of prodigious memorization skills. The method, known as the 'method of loci,' induces patterns of activity within new trainees' brains that closely resemble those of memory athletes.
A study by Emory University used functional magnetic resonance imaging (fMRI) to analyze the brain activity of canine candidates. The results found that brain scans could predict which dogs would fail a rigorous service training program with a significant improvement in accuracy, helping organizations identify unsuitable dogs earlier. ...
A wearable brain-imaging device has been used to measure brain synchronization during conversation, providing insights into how people understand each other. The technology can be used to study various social interactions and improve communication in different environments.
Researchers have developed software to decode digital brain data, enabling rapid progress on the ability to monitor neural activity and understand learning, memory, and cognitive functions. The collaboration has reduced processing time from days to less than a second.
A new study reveals that mild traumatic brain injury (mTBI) patients exhibit changes in brain connectivity that can aid in diagnosis and predict cognitive and behavioral outcomes. Resting-state functional MRI assessments can serve as a sensitive biomarker for early mTBI diagnosis and patient performance.
Researchers have successfully manipulated optogenetics and functional magnetic resonance imaging (fMRI) to capture large-scale brain-wide neural activity propagation and interaction dynamics. The study revealed dynamic network wiring in the mammalian species, challenging previous assumptions about brain connectivity.
A study found that brain responses to rewards are a significant predictor of pain symptoms in adolescents, with patterns of reward processing at age 14-15 predicting pain complaints at age 16-17. Genetic variants affecting pain sensitivity may also play a role.
Duke University researchers identified the caudate nucleus as the brain structure responsible for forming direct links between environmental stimuli and enhanced focus. By repeating exposure to specific faces, participants could trigger automatic focus and bypass distractions.
Researchers at the Center for BrainHealth found a strong link between impulsive personality and high body mass index (BMI). Individuals with an impulsive personality were more likely to exhibit altered neural function, which may contribute to weight gain. The study suggests that addressing impulsive personality traits could be key to d...
Researchers found that brain activity patterns, particularly within two networks involved in error detection and interference processing, can predict treatment response. Patients who showed stronger communication between these networks were less likely to benefit from antidepressants.
The American Academy of Neurology published a guideline suggesting the use of brain imaging to locate language and memory functions before epilepsy surgery. The guideline found weak evidence for the effectiveness of functional MRI (fMRI) in evaluating language abilities, but moderate evidence for its potential in predicting verbal memo...
A USC-led study found that people are less flexible when considering counter-evidence on political issues, but more so on non-political statements. The brain's Default Mode Network and amygdalae regions were activated in response to belief challenges.
Scientists have developed a technique to analyze brain patterns, which could help treat anxiety, eating disorders, and other conditions. By using decoded neurofeedback, researchers reduced fear responses in subjects by associating the stimulus with positive outcomes.
Researchers traced neural activity patterns in mice, revealing synchronized and symmetric activity coursing around the brain. This discovery connects to enigmatic signals detected in 'resting-state' fMRI, offering new insights into brain-wide neural activity.
A team of researchers used functional magnetic resonance imaging (fMRI) and acoustic analysis to study how children's brains respond to emotional speech cues. They found that lower frequency characteristics in voice spectra may play a significant role in understanding brain activity and differentiating emotional processing.
Researchers found disrupted brain circuitry in service members with mild traumatic brain injury (mTBI) who developed depression symptoms, linking physical foundation to emotional processing and rumination. This study may lead to personalized treatment strategies for future care.
Researchers found that brain connections change with age, but compensate for this by using new strategies to remember things. The study used fMRI data to analyze brain activity in individuals, revealing distinct patterns of connectivity among older people.