Magnetic Resonance Imaging News and Research

RSS

Magnetic resonance imaging (MRI) is an imaging technique which physicians use for the diagnosis and treatment of medical conditions.

Hormonal shifts alter brain patterns linked to female mood

During the menstrual cycle, when progesterone levels are higher, patterns of brain activity emerge that make it more difficult to distinguish between less and more emotionally demanding situations.

23 Sep 2026

Prenatal cannabis exposure linked to subtle brain and behavioral differences in children

A large ABCD study of 10,838 children found that prenatal cannabis exposure was associated with small differences in resting-state brain connectivity, higher behavioral and emotional problem scores, and lower performance on several cognitive measures in late childhood. PCE-related connectivity patterns partly overlapped with those linked to psychopathology and cognition, although the cross-sectional observational design cannot establish causality or mediation.

22 Sep 2026

Transplanted human cortical organoids filled most of a mouse cortex. Then they began to connect

Researchers created xenocortical mice by transplanting human cortical organoids into animals genetically depleted of much of their native cortex, allowing the human tissue to occupy most of the available cortical space and form anatomical connections throughout the host nervous system. The grafts developed diverse cortical cell types, including L5-ET and VEN-like neurons, generated organized neural activity, and produced measurable cellular and behavioral responses to hypoxic injury.

18 Sep 2026

Better fitness was linked to healthier brain structure, but not better memory

Researchers studying 353 cognitively unimpaired adults aged 60 to 94 found that higher muscular capacity was associated with lower basal ganglia perivascular space volume, while greater aerobic fitness was associated with greater gray matter volume and medial temporal lobe thickness. Fitness was not directly associated with global cognition or episodic memory, and evidence for cognitive reserve was limited, although VO₂max explained additional variation in delayed verbal memory beyond tau burden.

18 Sep 2026

Sex-specific biological clocks reveal how aging differs across the body in women and men

Researchers developed 38 sex-specific biological aging clocks across 15 organ systems, finding differences between females and males in genetic architecture, molecular signatures, disease associations, and mortality patterns. Brain aging clocks were linked to progression from mild cognitive impairment to Alzheimer’s disease in both sexes and to sex-dependent cognitive trajectories among solanezumab-treated A4 participants, while the authors stressed that sex-pooled and sex-interaction models remain complementary approaches.

17 Sep 2026

Scientists discover brain spot that drives risk-taking decisions

Every day, your brain runs the same calculation: take a risk or play it safe? Your gas tank might be low, but there's just enough to make it to work on time.

15 Sep 2026

Why researchers are looking at psilocybin for repeated mild head injuries

In female rats with repetitive mild head injury, psilocybin reduced acute imaging measures consistent with vasogenic edema and phosphorylated tau while altering vascular reactivity, functional connectivity, neurotrophic proteins, and lipid signaling. The findings provide preclinical evidence of potential therapeutic effects, but behavioral benefits were limited, and whether these biological changes translate into lasting neurological protection or benefits in humans remains unknown.

9 Sep 2026

Pink noise boosts brain waste clearance during sleep

During the day, waste products such as lactic acid and worn-out proteins build up in the brain. When we sleep at night, waves of cerebrospinal fluid (CSF) help to wash away this waste, keeping the brain healthy.

9 Sep 2026

Severe asthma inflammation linked to structural changes in the brain

People living with a severe form of asthma show subtle differences in the structure of their brains compared with people whose asthma is well controlled, according to new research presented at the European Respiratory Society (ERS) Congress in Barcelona, Spain.

8 Sep 2026

What your gut microbes may have to do with how your brain ages

This review examines how diet-driven changes in the gut microbiota and microbial metabolites may influence cognitive aging through immune, metabolic, neural, endocrine, and barrier-related pathways. It highlights SCFAs, tryptophan-derived metabolites, and bile acids as key signaling mediators while emphasizing that much of the mechanistic evidence remains preclinical and human evidence is largely associative.

3 Sep 2026

The four-day week has plenty of fans. Now researchers are testing what it really changes

The Sussex 4-Day Week study is a 14-week UK protocol designed to investigate how reduced working hours affect physical and mental health, wellbeing, sleep, work performance, and potential biological and psychological mechanisms. Researchers aim to combine questionnaires with actigraphy, inflammatory biomarkers, interoception testing, and brain imaging in at least 150 adults, with data collection expected to continue until 2027.

3 Sep 2026

New research visualizes how aerobic exercise alters brain activity patterns

Researchers at AIST, in collaboration with the University of Texas Southwestern Medical Center in the United States, examined changes in brain activity during cognitive tasks before and after acute aerobic exercise in young and older healthy adults.

2 Sep 2026

People with diabetes may have another reason to protect their cardiovascular health

Better cardiovascular health, measured using Life’s Essential 8, was associated with a lower risk of mild cognitive impairment among people with diabetes after accounting for genetic susceptibility. Associations with dementia varied by genetic risk, while higher LE8 scores were also linked to greater gray matter volume and lower white matter hyperintensity volume.

30 Aug 2026

Plyo-HIIT program targets healthier body composition in children

Traditional weight-loss strategies for children, from calorie restriction to general aerobic exercise, often carry an unwanted side effect: they cut fat, but they also erode muscle mass.

28 Aug 2026

Updated consensus offers new roadmap for childhood bedwetting care

Nocturnal enuresis (NE) in school-age children is more than a nighttime inconvenience: when persistent, it can affect self-esteem, sleep, family life and social functioning.

28 Aug 2026

Brain shrinkage biomarker may predict early-onset Alzheimer’s progression

In people diagnosed with early-onset Alzheimer's disease, a biomarker tool that detects shrinkage of the brain's gray matter may predict how quickly someone may progress from mild cognitive impairment (MCI) to dementia, according to a new study published August 26, 2026, in Neurology, an official journal of the American Academy of Neurology.

27 Aug 2026

Faulty myelin-making brain cells may help drive cognitive decline with age

Researchers found that greater age-related cognitive decline was associated with more dysfunctional oligodendrocytes, reduced NRF2 expression, smaller myelinated axons, and abnormally thicker myelin in human white matter. Experiments in mice showed that deleting NRF2 specifically from oligodendrocytes reproduced key white matter abnormalities and reduced cognitive improvement over time, implicating this pathway in cognitive aging.

26 Aug 2026

Multi-target interventions may yield superior outcomes for chronic ankle instability

Ankle sprain is the most prevalent sports-related injury affecting the lower limbs, and up to 70% of individuals with ankle sprain experience persistent symptoms, such as sensorimotor impairment and balance deficits, which may ultimately progress to chronic ankle instability (CAI).

24 Aug 2026

A childhood shaped by sugar rationing was linked to mental health more than 50 years later

UK Biobank researchers examined whether sugar rationing during pregnancy and the first two years of life was associated with adult sweet-food preferences, sugar intake, brain structure, anxiety, and depression.

23 Aug 2026

Psilocybin may make the brain more organized than scientists expected

In 62 adults, researchers combined fMRI, EEG and machine learning to examine how psilocybin reshapes brain activity during rest, meditation, music and movie viewing. They found that context-sensitive neural organization tracked the intensity and quality of psychedelic experiences and was associated with next-day mindset change.

20 Aug 2026