Does Your Nose Help Pick Your Friends?

In a small study, researchers in an olfaction lab found that people who had an instant personal connection also had similarities in their body odors.

#brain, #friendship, #nose, #smells-and-odors, #your-feed-science

The Effects of Sleep Debt

Recent studies in humans and mice have shown that late nights and early mornings may cause long lasting damage to your brain.

#brain, #mice, #research, #sleep, #sleep-debt, #trends-in-neurosciences-journal, #veasey-sigrid-c, #your-feed-health, #your-feed-science

NFL Players Participate in a Study That Might Predict CTE Decline

In a study, Dr. Jennifer Coughlin observed brain activity that may help predict the onset of trauma-related illnesses and cognitive decline. N.F.L. players are helping to further her research.

#brain, #chronic-traumatic-encephalopathy, #concussions, #football, #johns-hopkins-university, #martin-jonathan-1989, #research

They Were Cigarette Smokers. Then a Stroke Vanquished Their Addiction.

Patients whose brain injury coincidentally relieved their nicotine cravings may help unravel the neural underpinnings of addiction, a new study suggests.

#addiction-psychology, #brain, #nature-neuroscience-journal, #smoking-and-tobacco, #stroke, #your-feed-science

This Optical Illusion Has a Revelation About Your Brain and Eyes

Your pupils may be dilating when you see images like this one as your brain tries to anticipate the near future.

#brain, #eyes-and-eyesight, #frontiers-in-human-neuroscience-journal, #optical-illusions, #research, #your-feed-science

For Some Parkinson’s Patients, Boxing Can Be Therapy

No-contact boxing is a great full-body workout for anyone, but some experts say people with neurological disorders just might benefit most.

#anxiety-and-stress, #boxing, #brain, #exercise, #falls, #loneliness, #parkinsons-disease, #physical-therapy, #rock-steady-boxing

The Man Who Controls Computers With His Mind

16 years ago, Dennis DeGray was paralyzed in an accident. Now, implants in his brain allow him some semblance of control.

#brain, #computers-and-the-internet, #medical-devices, #musk-elon, #neuralink-corp, #paralysis, #psychology-and-psychologists, #science-and-technology

M.R.I.s Are Finding Connections Between Our Brain Activity and Psychology

How might we leverage knowing that a particular neurological feature makes someone more vulnerable to autism or Alzheimer’s or more likely to achieve academically?

#brain, #magnetic-resonance-imagers, #mental-health-and-disorders, #psychiatry-and-psychiatrists, #psychology-and-psychologists, #research

How Love Changes Your Brain

In her new book, Stephanie Cacioppo, a neuroscientist, delves into romance, loss and human connection as she writes of her love story with her husband.

#brain, #dating-and-relationships, #loneliness, #love-emotion, #norepinephrine-hormone, #university-of-chicago

Psilocybin Helps Alleviate Depression Symptoms, Small Study Says

The chemical derived from psychedelic mushrooms helped alleviate symptoms of depression and generated detectable neural responses that lasted weeks.

#brain, #depression-mental, #drugs-pharmaceuticals, #ecstasy-drug, #lsd-lysergic-acid-diethylamide, #mental-health-and-disorders, #nature-medicine-journal, #post-traumatic-stress-disorder, #psilocybin-mushrooms, #psychedelic-and-hallucinogenic-drugs, #research, #therapy-and-rehabilitation

The Search for a Model Octopus That Won’t Die After Laying Its Eggs

A lab in Massachusetts may have finally found an eight-armed cephalopod that can serve as a model organism and assist scientific research.

#animal-abuse-rights-and-welfare, #animal-behavior, #animal-cognition, #brain, #genetic-engineering, #genetics-and-heredity, #laboratories-and-scientific-equipment, #marine-biological-laboratory, #octopus, #research, #your-feed-animals, #your-feed-science

What Is Aphasia? Bruce Willis’s Diagnosis, Explained

Bruce Willis will retire from acting after being diagnosed with the condition. Here’s what we know about it.

#aphasia, #brain, #content-type-service, #willis-bruce

Brain Implant Allows Fully Paralyzed Patient to Communicate

Letter by painstaking letter, a man in a completely locked-in state was able to formulate words and sentences using only his thoughts.

#als-assn, #amyotrophic-lateral-sclerosis, #brain, #coma, #computers-and-the-internet, #nature-communications-journal, #research, #your-feed-health, #your-feed-science

Is Geometry a Language That Only Humans Know?

Neuroscientists are exploring whether shapes like squares and rectangles — and our ability to recognize them — are part of what makes our species special.

#animal-behavior, #animal-cognition, #artificial-intelligence, #brain, #computers-and-the-internet, #france, #language-and-languages, #mathematics, #monkeys-and-apes, #psychology-and-psychologists, #symbols, #your-feed-science

Concussions Doctor Under Scrutiny in Plagiarism Scandal

Paul McCrory helped write the bible of concussion treatment recommendations. But when he was accused of plagiarizing, many scientists took aim at his relationships to the sports leagues he advised.

#australian-football-league, #brain, #british-journal-of-sports-medicine, #chronic-traumatic-encephalopathy, #concussion-in-sports-group, #concussions, #content-type-personal-profile, #ethics-and-official-misconduct, #mccrory-paul, #medicine-and-health, #plagiarism, #retraction-watch

Some types of brain studies need thousands of participants to be reliable

Some types of brain studies need thousands of participants to be reliable

(credit: Deanna Barch)

One of the unfortunate realities of science is that small data sets often produce unreliable results, as any minor, random fluctuations can have a large impact. One solution to this issue has been building ever-larger data sets, where these fluctuations tend to be small compared to any actual effects. One of the notable sources of big data is the UK Biobank; brain scans from people in the Biobank were recently used to identify changes in the brain driven by SARS-CoV-2 infection.

Now, a large team of researchers has turned this idea upside down in a new paper. They took some of the biggest data sets and divided them into smaller pieces to figure out how small data sets could go before things got unreliable. And for at least one type of experiment, the answer is that brain studies need thousands of participants before they’re likely to be reliable. And even then, we shouldn’t expect to see many dramatic effects.

Associate all the things

The research team behind the study termed the type of work they were interested in “brain-wide association studies,” or BWAS. It’s a pretty simple approach. Take a bunch of people and score them for a behavioral trait. Then give them all brain scans and see if any brain structures have differences that consistently correlate with the behavioral trait.

Read 10 remaining paragraphs | Comments

#behavioral-science, #biology, #brain, #meta-research, #neurobiology, #science

Something Seemed to Be Blocking Signals to Her Brain. What Was It?

All her life she had perfect vision — until it suddenly started going haywire.

#autoimmune-diseases, #brain, #eyes-and-eyesight, #magnetic-resonance-imagers, #tests-medical, #tumors

Brain-Imaging Studies Hampered by Small Data Sets, Study Finds

Researchers have long used imaging technology to try to understand mental-health ailments. But with relatively few participants, such studies may not be producing valid findings.

#brain, #depression-mental, #human-connectome-project, #mental-health-and-disorders, #nature-journal, #your-feed-health, #your-feed-science

We Will Forget Much of the Pandemic. That’s a Good Thing.

Remembering too much, too vividly can negatively impact mental health.

#anxiety-and-stress, #brain, #coronavirus-2019-ncov, #fear-emotion, #memory

Covid May Cause Changes in the Brain, New Study Finds

Brain scans before and after infection showed more loss of gray matter and tissue damage, mostly in areas related to smell, in people who had Covid than in those who did not.

#brain, #coronavirus-2019-ncov, #gwenaelle-douaud, #memory, #nature-journal, #research, #smell-olfaction, #tissue-human, #your-feed-healthcare, #your-feed-science

The Hidden Epidemic of Brain Injuries From Domestic Violence

Research shows that survivors of abuse can sustain head trauma more often than football players. But they are almost never diagnosed.

#brain, #chronic-traumatic-encephalopathy, #concussions, #domestic-violence, #post-traumatic-stress-disorder, #psychology-and-psychologists, #sports-injuries, #traumatic-brain-injury

What is Microdosing, and Does it Work?

Scientists are split over whether the benefits some microdosers experience are a placebo effect or something more.

#anxiety-and-stress, #brain, #content-type-service, #creativity, #depression-mental, #lsd-lysergic-acid-diethylamide, #mental-health-and-disorders, #placebos, #psychedelic-and-hallucinogenic-drugs, #psychology-and-psychologists

Exercise Can Build Up Your Brain. Air Pollution May Negate Those Benefits.

People who worked out in even moderately polluted air did not show the kinds of brain improvements tied to a lower risk of dementia.

#air-pollution, #alzheimers-disease, #brain, #content-type-service, #dementia, #exercise, #masks, #memory, #protective-clothing-and-gear

Thomas Insel, the ‘Nation’s Psychiatrist,’ Takes Stock, With Frustration

In a new book, Thomas Insel, who led research into psychiatric disease for 13 years, says that advances in neuroscience have yet to benefit patients.

#allen-frances, #books-and-literature, #brain, #depression-mental, #healing-our-path-from-mental-illness-to-mental-health-book, #insel-thomas-r, #mental-health-and-disorders, #national-institute-of-mental-health, #psychiatry-and-psychiatrists, #research, #your-feed-science

Bob Saget’s Autopsy Report Describes Severe Skull Fractures

Such an extensive head injury would likely have left the actor confused, if not unconscious, experts said.

#autopsies, #brain, #falls, #head-body-part, #saget-bob, #skull-body-part, #tests-medical, #your-feed-healthcare, #your-feed-science

‘Don’t Write It Off’: Advice From Brain Injury Experts After Bob Saget’s Death

People who find themselves alone after a significant knock to the head are at higher risk of harm.

#brain, #chronic-traumatic-encephalopathy, #concussions, #deaths-fatalities, #falls, #head-body-part, #saget-bob, #skull-body-part, #traumatic-brain-injury

A Former Bengal’s Super Bowl Injury Taught Him How to Fight Football’s Other Ravages

Tim Krumrie’s devastating leg injury marked the Cincinnati Bengals’ last Super Bowl appearance. Still, he says he has no regrets for it or the brain trauma that he thinks football gave him.

#brain, #chronic-traumatic-encephalopathy, #cincinnati-bengals, #football, #krumrie-tim, #national-football-league, #sports-injuries, #super-bowl

How to Exercise Mindfully

Bringing meditation into your movement can enrich your workout and help you feel clearheaded afterward.

#brain, #exercise, #martial-arts, #meditation, #tightrope-walking, #yoga

Your Body’s Thirst Messenger Is in an Unexpected Place

Scientists traced how a mouse’s brain gets the signal that it had enough to drink. Something similar may happen in humans.

#brain, #digestive-tract, #liver, #nature-journal, #research, #senses-and-sensation, #vagus-nerve, #water, #your-feed-science

Cash Aid to Poor Mothers Improves Brain Function in Babies, Study Finds

The research could have policy implications as President Biden pushes to revive his proposal to expand the child tax credit.

#babies-and-infants, #babys-first-years, #brain, #child-tax-credits-and-stipends, #federal-aid-us, #income, #income-inequality, #poverty, #proceedings-of-the-national-academy-of-sciences, #research, #united-states-politics-and-government, #welfare-us

Try These Brain Foods to Improve Your Mood

For this week’s Eat Well Challenge, try some new foods that have been linked with improving your mood.

#anxiety-and-stress, #brain, #chocolate, #content-type-service, #depression-mental, #diet-and-nutrition, #food, #mental-health-and-disorders, #seafood, #serotonin-chemical, #vegetables, #well-challenge-2022

Cataract Surgery May Reduce Your Dementia Risk

Older adults who had cataract removal to restore their vision had a lower risk of Alzheimer’s disease and other forms of dementia.

#alzheimers-disease, #brain, #cataracts, #dementia, #eyes-and-eyesight, #glaucoma, #jama-internal-medicine-journal, #surgery-and-surgeons

When Dementia Strikes at an Early Age

Dementia in a person in their 30s, 40s or 50s poses special challenges, starting with getting a diagnosis.

#age-chronological, #alzheimers-disease, #brain, #chronic-traumatic-encephalopathy, #dementia, #dreams, #frontotemporal-dementia, #jama-neurology-journal, #memory, #sports-injuries

What is Neurofeedback Therapy And Can it Help With Mental Health?

Neurofeedback has promised a mental health revolution for decades. But is it effective?

#anxiety-and-stress, #biofeedback, #brain, #content-type-service, #mental-health-and-disorders, #psychology-and-psychologists, #therapy-and-rehabilitation

How Psychedelic Drugs Can Be Used for Mental Health

Many recreational drugs known for mind-altering trips are being studied to treat depression, substance use and other disorders. Here’s what you need to know.

#alternative-and-complementary-medicine, #anxiety-and-stress, #brain, #clinical-trials, #depression-mental, #ecstasy-drug, #ketamine-drug, #lsd-lysergic-acid-diethylamide, #mental-health-and-disorders, #psychedelic-and-hallucinogenic-drugs, #psychiatry-and-psychiatrists, #serotonin-chemical

Two Wyoming Bobsledders. Two Horrific Brain Injuries. One Survivor.

Travis Bell and Joe Sisson were close friends and rising stars in bobsled before crashes derailed their careers. Two decades later, one of them wonders why he thrived and his friend is gone.

#bobsledding, #brain, #chronic-traumatic-encephalopathy, #content-type-personal-profile, #olympic-games-2022, #sports-injuries

Why Stress May Be Your Heart’s Worst Enemy

Psychological stress activates the fear center in the brain, setting into motion a cascade of reactions that can lead to heart attacks and strokes.

#anxiety-and-stress, #blood-pressure, #brain, #cholesterol, #emotions, #heart, #journal-of-the-american-medical-assn, #meditation, #mental-health-and-disorders, #psychology-and-psychologists, #research, #stroke, #tai-chi, #yoga

Diets Make You Feel Bad. Try Training Your Brain for Healthy Eating Instead.

The new Eat Well Challenge will show you how to reshape your eating habits without dieting.

#anxiety-and-stress, #brain, #brewer-judson, #content-type-service, #diet-and-nutrition, #food, #habits-and-routines-behavior, #new-year, #weight

Vincent Jackson’s Widow Hopes Speaking About His C.T.E. Warning Signs Will Help Others

The ex-N.F.L. player Vincent Jackson was found dead in a hotel room days after his former team won the Super Bowl. In light of his C.T.E. diagnosis, his widow recounted Jackson’s decline.

#alcohol-abuse, #boston-university, #brain, #chronic-traumatic-encephalopathy, #concussions, #content-type-personal-profile, #football, #national-football-league, #tampa-fla, #tampa-bay-buccaneers, #vincent-jackson

Phillip Adams Had Severe C.T.E. at the Time of Shootings

A neuropathologist found an “unusually severe” form of the brain disease in the 32-year-old former N.F.L. player who killed six people in April before shooting himself.

#adams-phillip-m-1988-2021, #anne-mckie, #boston-university, #brain, #chronic-traumatic-encephalopathy, #football, #hernandez-aaron-1989, #lesslie-robert-d-1951-2021, #mass-shootings, #murders-attempted-murders-and-homicides, #national-football-league

Can an Athlete’s Blood Enhance Brainpower?

Scientists who injected idle mice with blood from athletic mice found improvements in learning and memory. The findings could have implications for Alzheimer’s research and beyond.

#alzheimers-disease, #animal-cognition, #brain, #elderly, #exercise, #longevity, #memory, #mice, #nature-journal, #proteins, #research, #stanford-university, #tests-medical, #veterans, #veterans-affairs-department, #your-feed-science

Cognitive Rehab: One Patient’s Painstaking Path Through Long Covid Therapy

Samantha Lewis is relearning some basic aspects of her daily life after struggling with brain fog and other lingering symptoms for more than a year since being infected by the virus.

#brain, #chronic-condition-health, #coronavirus-2019-ncov, #northwestern-memorial-hospital-chicago-ill, #therapy-and-rehabilitation, #your-feed-science

How Exercise May Support the Aging Brain

Simple activities like walking boost immune cells in the brain that may help to keep memory sharp and even ward off Alzheimer’s disease.

#age-chronological, #alzheimers-disease, #brain, #content-type-service, #elderly, #exercise, #memory, #rodents

Concerns Grow Over Safety of Aduhelm After Death of Patient Who Got the Drug

Newly published safety data shows that 41 percent of patients in key clinical trials of the Alzheimer’s drug experienced brain bleeding or swelling, though many cases were asymptomatic.

#aduhelm-drug, #alzheimers-disease, #biogen-inc, #brain, #clinical-trials, #deaths-fatalities, #drugs-pharmaceuticals, #elderly, #food-and-drug-administration, #jama-neurology-journal, #labeling-and-labels-product, #rbc-capital-markets, #research, #your-feed-science

I Have to Believe John Sarno’s Book Cured My Chronic Pain

A science writer investigates the 30-year-old claims of an iconoclastic doctor who said chronic pain was mostly mental.

#anxiety-and-stress, #brain, #chronic-condition-health, #emotions, #pain, #physical-therapy, #psychology-and-psychologists, #therapy-and-rehabilitation

The Global Dream Lab

All around the world, the pandemic provoked strange nocturnal visions. Can they help shed light on the age-old question of why we dream at all?

#anxiety-and-stress, #brain, #coronavirus-2019-ncov, #dreams, #psychology-and-psychologists, #sleep

How to Map a Fly Brain in 20 Million Easy Steps

An enormous new analysis of the wiring of the fruit fly brain is a milestone for the young field of modern connectomics, scientists say.

#animal-behavior, #animal-cognition, #brain, #elife-journal, #flies, #janelia-farm-research-campus-howard-hughes-medical-institute, #jayaraman-vivek-1971, #research, #your-feed-animals, #your-feed-health, #your-feed-science

Does Estrogen Impact Exercise? What Scientists Are Learning

A study in mice raises intriguing questions about the ways that hormones influence the brain and motivate the body to move.

#animals, #brain, #estrogen, #exercise, #genetics-and-heredity, #hormones, #menopause, #mice, #women-and-girls

Make Exercise Easier By Focusing on Sights, Sounds Around You, Study Says

Focusing on external sights and sounds, rather than what’s going on in your body, made running feel easier and improved performance.

#brain, #content-type-service, #exercise, #journal-of-motor-learning-and-development, #muscles, #psychology-and-psychologists, #running

Exercise May Alleviate ‘Chemo Brain’ in Breast Cancer Patients

Women undergoing chemotherapy for breast cancer who stayed physically active had fewer problems with memory and thinking.

#brain, #breast-cancer, #chemotherapy, #content-type-service, #exercise, #journal-of-clinical-oncology, #women-and-girls