A new brain imaging study published in eBioMedicine, provides the strongest evidence to date that long COVID is associated with injury to dopamine-releasing neurons in the brain—a finding that may explain symptoms such as lack of motivation due to fatigue, slowed movement and memory difficulties, and could open the door to new treatment strategies.
New research shows that sleep disorders are associated with structural changes in brain regions involved in attention, motivation and decision-making.
A new study reports that sensors can accurately monitor disease progression in patients with Parkinson’s, addressing the limitations of wearable technologies. The research, conducted by scientists from the UK Dementia Research Institute, aims to create a zero-burden method for tracking movement changes in affected individuals
Drugs commonly used for weight loss, known as GLP-1 receptor agonists, have been found to reduce the key symptoms of binge eating disorder, in a new review of evidence led by University College London (UCL) researchers.
Scientists at Trinity College Dublin have discovered that, for a short period of around one to two seconds, the brain can begin following a new conversation before it has fully let go of the previous one. The findings challenge the long-held view that we can only focus on one speaker at a time.
People with dementia, mild cognitive impairment, alcohol addiction or psychiatric disorders such as schizophrenia show increased brain ageing, each in specific patterns within the brain, according to a study published in PLOS Medicine.
Individuals with psychiatric conditions have less flexibility in their brain network dynamics, as found in a new Rutgers study. The brain is made up of networks that adapt and reorganise to handle changing cognitive and emotional needs. This ability to reconfigure supports how we manage our thoughts and behaviours.
A new neuroimaging study published in the journal Brain Imaging and Behavior provides some of the first evidence that strengthening your brain health through daily habits rewires its physical architecture
Researchers have conducted one of the most comprehensive studies on how the autistic brain processes faces. Some hallmark characteristics of autism include tendencies to avoid looking at others’ faces and to make less eye contact. The research is publishedin the journal Nature Mental Health.
A new study highlights “gut jet lag”, the desynchronization between host biological clocks and gut microbiota rhythms during long-haul travel.
Credit: Jeffrey Parr/University of Southern Mississippi
New research indicates that athletes with ADHD need even more scrutiny when head injuries are involved.
Scientists have made progress in finding better pain treatments with a new study aimed at reducing the addictive effects of morphine. They found that activating a dopamine receptor called D4 boosts morphine’s pain-relieving effects and helps prevent tolerance.
Prefrontal transcranial pulse stimulation is associated with antidepressant effects, according to a study published in JAMA Network Open
Cerebrovascular disease can cause serious problems if not treated quickly, but it’s hard to spot before symptoms show up. Researchers have developed an AI technology that analyses daily activities and environmental data from older adults to identify signs of cerebrovascular disease risk based on small changes in their home lives.
Researchers have developed a small graphene-based sensor to noninvasively measure dopamine in artificial tears, enabling rapid neurodegenerative screening.
The Consortium for Biomedical Research and Artificial Intelligence in Neurodegeneration (C-BRAIN) has launched three open-source AI tools. These tools act as team members in biomedical research, analysing global neuroscience literature, identifying patterns in hidden data, and providing objective peer reviews to accelerate the development of life-saving treatments.
A retrospective cohort study of 19,824 NFL players confirms that professional football veterans face a fourfold increase in neurodegenerative mortality, including a 3.8-fold surge in all-cause dementia and Parkinson’s disease.
A study in Neurology found that people with early-onset dementia had lower work productivity up to 15 years before they were diagnosed, with variations by type of dementia. Early-onset dementia refers to anyone under 65 diagnosed with dementia. The study only shows a link between early-onset dementia and reduced productivity, not that one causes the other.
A research team created a brain implant that can modulate neural activity with temperature, offering new opportunities for brain-computer interfaces and neurological treatments.
New research has used advanced EEG-fMRI tracking to show that the brain doesn’t operate as a single process. Instead, the human connectome manages multiple separate, asynchronous streams of information processing that happen simultaneously, providing new insights into clinical neuro-diagnostics and cognitive complexity.
A new study has introduced a novel machine learning method for analysing how the brain organises complex behaviours, offering fresh evidence that neural activity is built from reusable “building blocks.” The study is published in Neuron.
Scientists have conducted a study that enhances the understanding of the brain’s neuromodulators—acetylcholine, dopamine, and serotonin. The research integrates advanced experimental measurements with detailed computational models of the brain, demonstrating how these chemical messengers influence the electrical activity of numerous neurons in the developing brain.
Exposure to high temperatures during pregnancy and early infancy is linked to slower thalamic growth in childhood, as indicated by research from the Barcelona Institute for Global Health.
A new study has found that older adults who participated in a structured, 2-year healthy lifestyle program saw a significant improvement in memory and thinking skills, approximately 55% greater per year, compared with those who received only general health advice.
Research has shed new light on the biological basis of schizophrenia by directly measuring synaptic connections in the human brain using specialised positron emission tomography (PET) imaging.
A major study involving over 214,000 older adults from 14 countries shows that common risk factors for dementia—like low education, high blood pressure, and smoking—differ greatly between countries. This indicates that a single approach to prevention won’t be effective everywhere.
Natural plant compounds called polyphenols, found in foods such as berries, tea, cocoa, coffee, and extra-virgin olive oil, may positively influence biological processes associated with Alzheimer’s disease and nerve cell loss, claims a recent review.
A recent study found that poor sleep affects brain communication in adults, particularly highlighting that older women with poor sleep exhibited abnormal connectivity between the Default Mode Network and the Frontal Parietal Network. This over-communication correlated with worse memory performance and resembled brain patterns observed in early stages of Alzheimer’s disease.
Rare DNA changes are most strongly linked to cognition in early childhood, but the link fades as children age, while common DNA changes show stronger links later in childhood, a new study finds.
Researchers have demonstrated a novel AI model that can predict which DNA molecules bind with which other DNA molecules. Providing a more thorough understanding of these hypercomplex binding relationships has utility in applications ranging from biomedical diagnostic tools to DNA computing.
A study revealed that heightened amygdala activity in adolescents viewing emotional faces can forecast their social health two years later, showing that for girls it indicated greater peer engagement, while for boys it indicated less.
Researchers have conducted a psychophysical study using virtual reality (VR) to investigate how humans flexibly use exploratory behaviours—such as changing their viewpoint by moving their head and manipulating objects with their hands—when discriminating the material properties of objects. The study was published in the Journal of Vision.
A new study establishes a robust link between long-term exposure to air pollution and the risk of Parkinson’s disease.
An international team of scientists and clinicians have developed a generative artificial intelligence framework that unmasks these previously hidden cortical lesions by analysing existing legacy MRI scans. By synthesising minor, sub-visual discrepancies across multiple image contrasts, the AI acts as a computational lens, extracting vital diagnostic data from ordinary scans and revealing an entirely invisible layer of MS pathology.
New research in General Psychiatry has uncovered a link between higher levels of daytime light exposure and a lower risk of dementia.
A recent study discovered that randomly played sounds during sleep can actively impair memory consolidation. By utilising real-time electroencephalography (EEG) monitoring, the researchers proved that ambient sound clicks disrupt deep slow-wave sleep, arresting the physical propagation of slow brain waves across the cortex and fracturing the crucial transfer of information required to form long-term memories.
A research team has uncovered new insight into how the brain senses movement. Their findingscould potentially help improve sensation and movement for prosthetic limbs.
A new study has demonstrated that introducing inflammatory signalling molecules directly into human hippocampal stem cells halts new neuron production. Instead of simply dying or becoming damaged, the brain’s neural stem cells abandon their regenerative responsibilities, entering an “immune alert” state that fuels localised neuroinflammation.
People who speak more than one language seem to have younger brains, according to research presented at the Federation of European Neuroscience Societies (FENS) Forum 2026.
A new research framework that combines large language models (LLMs) with choice mathematics to evaluate human decision-making. By deploying LLMs to automatically interpret and code thousands of free-text participant thought justifications, the framework provides a scalable, validated methodology demonstrating that human reasoning strategies shift dynamically with a problem’s structure.
Scientists have found that human cortical neurons function like advanced microchips, demonstrating computational abilities comparable to those of deep artificial neural networks, rather than merely acting as simple switches.
Red indicates parts of the brain with more histamine-related gene expression, blue regions have comparatively less. The genes (HDC, HNMT, ALDH7A1, MAOB, HRH1, HRH2, HRH3, HRH4) play many different roles in histamine signaling, including histamine production (HDC), histamine breakdown (HNMT) or encoding histamine receptors (HRH1, HRH2, HRH3, HRH4). Credit: Nature Mental Health (2026).
New research has created the first comprehensive map of the histamine system in the brain, highlighting its role beyond allergies and linking it to genetics, behavior, and mental health conditions.
A pilot study suggests that transcranial temporal interference stimulation (TIs), a noninvasive brain stimulation method, may effectively treat motor symptoms in Parkinson’s disease by improving movement significantly in patients compared to a sham treatment, specifically when targeting the subthalamic nucleus.
A comprehensive analysis of biological clocks across the human body reveals that both insufficient and excessive sleep are associated with accelerated aging in nearly every organ system.
Scientists have the first direct evidence from human studies that brain-controlled hearing technology can help people single out a voice in a crowd. These early findings suggest that researchers may one day develop a hearing augmentation device that can, among other feats, overcome the problems that conventional hearing aids have with noisy surroundings.
A new study presents evidence that hormonal changes, from monthly cycles to menopause, significantly alter how the brain processes sound.
Baylor College of Medicine researchers discovered that the human brain can process language while under general anaesthesia, challenging our understanding of consciousness and cognition, and potentially offering new insights into memory, language, and brain-computer interfaces.
Individuals with diabetes face a significantly higher risk of developing dementia, as highlighted in research from the 28th European Congress of Endocrinology in Prague, indicating they are more than twice as likely to develop the disease.
New research shows that as we form online connections, our brains prioritise “social mapping” over “content learning.” This shift is even more dramatic for those with high working memory, who use their digital networks as external storage, resulting in a 40% drop in content recall.
Scientists have discovered new evidence that disputes previous beliefs about the causes of lacunar ischemic stroke, revealing that fatty deposits in arteries may not be the reason for this type of stroke, which constitutes about 25% of ischemic strokes. Instead, researchers identified a different vascular abnormality—enlargement and widening of arteries in the brain—as being strongly linked to lacunar stroke.
New research provides a breakthrough in understanding the biological mechanisms linking Cannabis Use Disorder (CUD) and psychosis.
A new study has found that while “brain fog” predicts a first episode of depression in healthy adults, those with a history of the disorder are actually more likely to relapse if their cognitive scores are high. This “confounding” result suggests that the relationship between how we think and how we feel is far more complex than previously believed.
Finally, multiplexed imaging technology using standard clinical MRI systems can simultaneously map more than 20 biomarkers in high resolution, providing a comprehensive view of the brain with a single scan.
Researchers are developing a fully implantable brain-computer interface (BCI) that enables patients with paraplegia to control robotic exoskeletons with their thoughts, aiming to restore both walking and the sensation of walking.
New research indicates that time perception is a complex, multi-stage process in the brain, starting with sensory encoding and leading to a representation of time that helps us categorise experiences by duration and order. This insight paves the way for further studies on the links between cognitive functions and time perception, particularly in relation to disorders affecting this process.
Does a plant-based diet prevent Alzheimer’s? New research shows that healthful plant-based diets lower dementia risk by 7%, while unhealthful plant-based diets increase risk.
A new AI framework emulates human brain development by “pruning” unnecessary connections as it learns, becoming more compact and energy-efficient while mastering complex tasks. The study indicates that effective learning relies on the right connections rather than on an abundance of them. By mimicking infant brains, this AI enables continual learning and improves perception, motor control, and interaction, all while reducing size and energy consumption.
A new study reveals that school-age children and adolescents with medically diagnosed traumatic brain injury (TBI) have significantly higher rates of anxiety/depression, and strong family support and resilience help alleviate some of it.
Loneliness affects memory performance in older adults but does not accelerate cognitive decline, according to a European study of more than 10,000 participants over seven years. Although those reporting high levels of loneliness initially performed worse on memory tests, their decline in recall ability matched that of less lonely participants over time.
Researchers have developed a 15-minute blood test that uses europium nanoparticles and a smartphone to track melatonin levels, helping astronauts and shift workers manage their biological clocks.
A study from Mass General Brigham reveals that a blood test measuring plasma phosphorylated tau 217 (pTau217) can predict changes in amyloid PET scans and cognitive decline in healthy older adults, potentially allowing for earlier disease prediction and identifying those at risk for cognitive decline. The findings are published inNature Communications.
A high-resolution study of 30 adult brains reveals over 3,000 genes with sex-biased expression. These findings link molecular sex differences to the prevalence of disorders like ADHD and Alzheimer’s.
Air pollution is associated with increased migraine activity, according to a study published in Neurology. Both short-term and cumulative exposure to air pollution, as well as climate factors such as heat and humidity, were associated with increased migraine activity.
A new study shows how subcortical pathways can make AI models more flexible and biologically accurate.
New research indicates that high sodium intake may harm episodic memory, which is essential for recalling personal experiences. These findings emphasise the broader cognitive effects of a salty diet, underlining the significance of making healthy dietary choices for brain health.
Can brain implants restore sight? Researchers have mapped how the brain reacts to neural probes, finding that flexible polyimide is the key to long-term biocompatibility.
Scientists analysed data from over 363,000 participants in the NIH’s All of Us Research Program and found that treatable middle ear conditions, such as eardrum perforations and cholesteatoma, are associated with nearly double the odds of developing dementia; however, treating these conditions with surgery or hearing aids significantly reduced or eliminated the dementia risk.
Segmented and labelled images of a normal brain. Credit: Worcester Polytechnic Institute
Researchers utilised AI to examine anatomical brain changes, achieving a 93% accuracy in predicting Alzheimer’s disease. Their findings indicate that these changes, including brain volume loss, vary by age and sex.
Lithium—a decades-old treatment for bipolar disorder—may hold potential neuroprotective benefits beyond mood stabilisation. An exploratory clinical trial suggests that low-dose oral lithium may help slow the decline of verbal memory, or ability to remember and recall words and sentences, in older adults with mild cognitive impairment, particularly among those with evidence of amyloid beta—one of the hallmark biomarkers of Alzheimer’s disease.
A studypublishedin Nature Communications, has identified specific DNA-level changes in the brains of people with Alzheimer’s disease (AD). Using advanced biological analysis, the team mapped alterations in the brain’s regulatory landscape that may help explain why Alzheimer’s presents and progresses differently from person to person. The findings could also open new avenues for understanding other neurodegenerative diseases.
Researchers have demonstrated through Magnetoencephalography (MEG) that memories can be reactivated in the brain without reaching conscious awareness, indicating these memories persist even when believed forgotten.
Could the deepest parts of the brain hold some of the secrets of sleep that still remain elusive to science? An in-depth study that penetrates into the brain, finding that during the deepest sleep, breathing patterns and brain activity become more independent of one another—unlike in lighter sleep or quiet wakefulness.
New research objectively quantifies multisensory losses in patients with COVID-19. The study, published in BMC Medicine, follows long COVID patients reporting issues in smell, taste, balance, hearing, and brain fog.
Researchers may have found a reason why young adults with autism are about six times more likely to get Parkinson’s disease as they age. Some young adults with autism have issues with dopamine transporters—small molecules in the brain that recycle dopamine—on brain scans usually used to diagnose older adults with Parkinson’s disease.
Why do people with compulsive traits—seen in OCD, addiction, and eating disorders—rely on repetitive habits? A recent study reveals it’s not due to an inability to plan for the future, but rather a paralysis by uncertainty.
A meta-analysis of over 900 scientific papers has mapped the “immune signatures” that determine if our brains recover or decline post-infection. The study reveals that the immune response creates a chemical environment in the brain that can either protect or harm our memory, attention, and processing speed.
Finally, this week, a team of researchers has developed a technology capable of enabling early diagnosis of major neurological disorders, including epilepsy, Parkinson’s disease, and schizophrenia, using only a small amount of saliva.
Diagram outlining the model procedures for one domain and one region. This process was repeated for all 33 domains and 82 regions. Credit: Network Neuroscience (2025).
A new study provides the best evidence to date that the connection patterns between various parts of the human brain can tell scientists the specialized functions of each region.
Researchers have discovered that problems with the brain’s waste-clearing system—the glymphatic system—may significantly raise the risk of developing dementia. In one of the most extensive studies to date, MRI data from 40,000 adults revealed that impaired cerebrospinal fluid (CSF) flow predicts dementia risk years before symptoms appear.
Statins might help protect the brain function of breast and lymphoma cancer patients for up to 2 years after their cancer treatment, according to a report in JAMA Network Open.
A study published in the journal Music and Medicine demonstrates that intraoperative music therapy significantly reduces the amount of propofol and fentanyl required during laparoscopic cholecystectomy performed under general anaesthesia. Patients exposed to therapeutic music also experienced smoother awakenings and lower physiological stress, as measured by decreased perioperative cortisol levels.
Scientists have used next-generation imaging technology to discover that when the brain is falling asleep, it shows a coordinated shift in activity.
A research team has conducted one of the most comprehensive studies on dopamine and decision-making in humans so far, providing evidence for effects of the former on the latter. Dopamine is a neurotransmitter involved in several functions, including motivation and reward.
Newly decoded brain circuits make memories more stable as part of learning, according to a new study.
Brain scans from American football players reveal subtle differences in the brain’s outer grooves when compared to scans from otherwise healthy men who never played contact or collision sports, a new study shows. Its authors say the findings could potentially predict which people are more at risk of chronic traumatic encephalopathy.
Researchers have uncovered an unexpected molecular partnership that reshapes understanding of how brain inflammation arises in Alzheimer’s disease.
Even when blood pressure is well controlled, older adults whose blood pressure fluctuates widely from one heartbeat to the next may be at greater risk for brain shrinkage and nerve cell injury, according to a recent study.
Finally, this week, new research suggests that a child’s gut microbiome at age 2 may influence their emotional health years later.
Memory loss may not simply be a symptom of getting older. New research shows that it’s tied to specific molecular changes in the brain and that adjusting those processes can improve memory.
An international consortium of researchers has created the largest-ever database compiling records of brain activity during sleep and dream reports. One of the first analyses of the database confirmed that dreams do not occur only during REM sleep, but also during deeper and calmer NREM stages. In these cases, brain activity resembles wakefulness more than deep sleep, as if the brain were “partially awake.”
A smartphone app for muscle relaxation significantly reduced migraine-related disability in patients visiting the emergency department.
A new study reveals that sleep-like slow-wave brain activity can persist for years in surgically disconnected brain hemispheres of awake epilepsy patients. Using EEG recordings, researchers found that the isolated cortex exhibits patterns similar to deep sleep, anesthesia, or vegetative states—suggesting absent or reduced awareness.
People 60 and older who are excessively sleepy during the day may have more problems with memory and thinking after surgery, suggests a study presented at the ANESTHESIOLOGY 2025 annual meeting.
Doctors and researchers at the University of Pittsburgh and UPMC have developed a new treatment for epilepsy patients who don’t respond to medication and aren’t candidates for surgery. Their approach, published in Nature Communications, uses deep brain stimulation (DBS) that is tailored to each patient’s unique brain wiring.
A new computational tool has uncovered genetic evidence directly linking Alzheimer’s disease to the loss of memory-making neurons, helping to resolve a decades-long mystery in dementia research.
While studies have linked brain areas to remembering personal experiences, brain areas involved in learning more impersonal information about the world remain unclear. In a new JNeurosci paper, researchers used fMRI on 29 human volunteers as they performed a learning task to shed light on how the brain acquires semantic, impersonal information.
Researchers have traced the earliest stages of multiple sclerosis (MS), showing that the immune system begins attacking the brain up to seven years before diagnosis.
New research has provided the strongest evidence yet that auditory verbal hallucinations—or hearing voices—in schizophrenia may stem from a disruption in the brain’s ability to recognise its own inner voice.
Adults with gum disease may be more likely to have signs of damage to the brain’s white matter than people without gum disease, according to a study published in Neurology Open Access.
A team of researchers has developed and tested a new virtual reality (VR) training task designed to help stroke survivors living with visuospatial neglect (VSN), a disabling condition that affects attention and awareness of one side of space. The exploratory case study is among the first to integrate audiovisual cues within a physiotherapy-based VR task to support rehabilitation.
Finally, this week,listening to music when you are over 70 years of age has been linked to a 39% reduction in the risk of dementia, according to a new study of over 10,800 older people.
Participants were more likely to perceive the avatar’s expression as angry when they actively avoided the avatar, compared to when the avatar moved away from them. Credit: (C)Toyohashi University Of Technology.
A research team from the Cognitive Neurotechnology Unit and the Visual Perception and Cognition Laboratory at Toyohashi University of Technology has found that approach–avoidance behavior in a virtual reality (VR) environment modulates how individuals recognize facial expressions.
A McGill University-led clinical trial is the first in humans to show online brain training exercises can improve brain networks affecting learning and memory.
A new study reveals that the human brain synchronizes more accurately with rhythm when listening to music than when feeling it through touch. When people tap along to sound, slow rhythmic brain waves align with the perceived beat, helping maintain steady timing.
Psilocybin could be the future of mental health care, with promising findings emerging from Australia’s first research trial using psychedelics to treat depression.
An international research team led by a University of Ottawa Faculty of Medicine investigator has revealed intricate details about how nerve signals activate at the neuromuscular junction. This specialized synapse connects motor neurons to skeletal muscle fibers.
A study publishedin Environment International concludes that air pollution during pregnancy is associated with slower brain maturation in newborns. It is the first study to analyze brain development within the first month of life.
A new clinical trial is investigating how advanced brain monitoring could improve the diagnosis and management of epilepsy.
University of California San Diego of Medicine researchers, in collaboration with the genetic testing company 23andMe, have identified regions of the human genome associated with cannabis use, uncovering new relationships with psychiatric, cognitive and physical health.
The conditions where you live may influence your brain health and risk for dementia, according to a new study.
Women are affected by severe depression twice as often as men. The reasons for this have not yet been fully clarified. One potential factor is sex-specific differences in the blood-brain barrier. Scientists are conducting research on the project “Leaky blood-brain barrier in major depressive disorder.” A particular focus is on sex-specific differences.
A newstudypublished in Scientific Reports indicates that amyotrophic lateral sclerosis (ALS) and multiple sclerosis (MS) have an extremely high geographic association, even after controlling for race, gender, wealth, latitude, and access to neurological health care.
Finally, this week, a ‘ flight simulator‘ for the brain reveals how we learn—and why minds sometimes go off course.
Opioid blockade (Naltrexone condition; right side) relative to placebo (Control condition; left side) selectively eliminated attentional broadening after reward receipt (A), but did not change attentional narrowing after reward anticipation (B) or reward-related performance speed on the lexical decision task (C). Credit: Psychological Medicine (2025).
Feeling good doesn’t just lift our mood—it also helps us stay flexible and resilient. A study by an international team of neuroscientists shows that natural brain opioids released after rewards play a key role in broadening attention, offering fresh insights into stress, cognition, and well-being.
A ground-breaking study has shown that ALS may actually be an autoimmune disease.
Engaging in creative experiences, such as music, dance, visual arts, and even specific video games, can slow brain aging and promote healthier brain function, according to a new international study by the Global Brain Health Institute (GBHI), publishedin Nature Communications.
Can your brain attune itself to a foreign language before you’re born? A team of neuropsychology researchers has found that it can.
A new study reveals that the brain’s social perception pathway—a network that processes faces, gaze, and speech—is already active at birth or shortly thereafter. Using advanced imaging data, researchers showed that newborns exhibit robust connectivity in regions responsible for visual and social processing.
Scientists have discovered why mental maps tend to fade with age.
A new study has identified five distinct “sleep-biopsychosocial” profiles that connect how we sleep with our brain networks, mental health, cognition, and lifestyle. Using data from over 700 participants, researchers found that different sleep patterns—ranging from poor quality to resilience and short duration—each showed unique neural connectivity patterns.
A large-scale international study has revealed that autism diagnosed in early childhood is genetically and developmentally distinct from autism diagnosed later in life.
Scientists have developed a new mathematical model of memory that explores how information is encoded and stored. Their analysis suggests that memory works best in a seven-dimensional conceptual space — equivalent to having seven senses. The finding implies that both humans and AI might benefit from broader sensory inputs to optimize learning and recall.
Researchers have identified a rare type of brain cell that may drive the chronic inflammation and neurodegeneration seen in progressive multiple sclerosis (MS).
A new study shows that bullying activates distress pathways in the brain within seconds. Tweens and adults who viewed first-person bullying videos displayed heightened activity in social and emotional brain networks, alongside strong autonomic threat responses.
New research sheds light on the mechanisms by which humans can isolate and focus on individual sounds in noisy environments.
Scientists have revealed that intentional memory control—deciding what to remember or forget—is more potent than emotional influence when forming long-term memories. Participants were more likely to recall words they were told to remember than those carrying emotional weight, even though emotion sometimes strengthened recall or caused false memories.
Finally, this week, a new study reveals how the brain organizes and directs its slowest activity.
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