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Psychology Research News
July 23, 2023

Top Headlines

Hardship Affects the Gut Microbiome Across Generations

A new study has shown that hardship experienced by mothers during their own childhood or during pregnancy is reflected in the composition of their 2-year-old children's gut microbiome. It was previously understood that in rodents, prenatal stress affects microbiomes into adulthood, but how long ...

Cause of Sleep Disturbance in Cardiac Disease Identified: Ganglia Play Previously Unrecognized Role

Around one third of people with heart disease suffer from sleep problems. A team now shows that heart diseases affect the production of the sleep hormone melatonin in the pineal gland. The link between the two organs is a ganglion in the neck ...

Volunteering in Late Life May Protect the Brain Against Cognitive Decline and Dementia

Volunteering in late life is associated with better cognitive function -- specifically, better executive function and episodic ...

One Pill Doesn't Fit All: Cholesterol Study Reveals Effects on Lung Function and Brain Size

One of the world's largest studies on the impact of cholesterol-lowering medication has good and bad news for the 200 million people who take statins or other medication for high ...
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Do Certain Amino Acids Modify the Risk of Dementia Linked to Air Pollution?

Higher levels of vitamin B-related amino acids may be linked to the risk of dementia associated with a certain type of air pollutants called particulate matter, according to a study published in the ...

Mast Cells as a Sensor: Enigmatic Immune Cells Help Us Avoid Harmful Allergens

The function of mast cells, which are part of the immune system, is still a mystery. Scientists have now shown in mice: mast cells function as a sensor that signals the animals to avoid antigens, ...

Neurons That Track, Regulate Blood-Sugar Levels Are Found

New research has discovered neurons within the brain which detect and respond to changes in the level of sugar within the bloodstream. Understanding how this blood-sugar detection system works and ...

Inflammation Hotspots in MS Spill Over to Damage Grey Matter

A study in mice suggests that inflammation in the brain's barrier, the meninges, may spill over into grey matter and cause changes that can contribute to progressive multiple sclerosis ...

A Neurobehavioral Signature of Risk for Mania

躁狂,extremel情绪和能量水平y elevated for at least a week, and hypomania, which is less severe and lasts at least four days, are the defining features of bipolar spectrum ...

Gum Disease Linked to Buildup of Alzheimer's Plaque Formation

Although most people don't associate oral disease with serious health problems, increasing evidence shows that oral bacteria play a significant role in systemic diseases like colon cancer and ...

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Deep-Sleep Brain Waves Predict Blood Sugar Control

Researchers have uncovered a potential mechanism in humans that explains how and why deep-sleep brain waves at night are able to regulate the body's sensitivity to insulin, which in turn ...

Birth-Control Pills Affect the Body's Ability to Regulate Stress, Study Suggests

A new study suggests that birth-control pills negatively impact women's stress ...

Multiple Sclerosis: New Biomarker Confirmed for Early Diagnosis

A study has demonstrated for the first time that diagnosis of multiple sclerosis (MS) can be significantly improved by additionally measuring the thickness of retinal layers in the eye. Use of the ...

Schizophrenia Is Associated With Somatic Mutations Occurring in Utero

As a psychiatric disorder with onset in adulthood, schizophrenia is thought to be triggered by some combination of environmental factors and genetics, although the exact cause is still not fully ...

Taking Good Care of Your Teeth May Be Good for Your Brain

Taking good care of your teeth may be linked to better brain health, according to a new study. The study found that gum disease and tooth loss were linked to brain shrinkage in the hippocampus, which ...

Depression After Traumatic Brain Injury Could Represent a New, Distinct Disease

A new study suggests that depression after traumatic brain injury (TBI) could be a clinically distinct disorder rather than traditional major depressive disorder, with implications for patient ...

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New Understanding of How the Brain Processes and Stores Words We Hear

Neuroscientists say the brain's auditory lexicon, a catalog of verbal language, is actually located in the front of the primary auditory cortex, not in back of it -- a finding that upends a ...

How the Ear Can Inform the Brain of Whether Hearing Is Impaired

A cochlear signal, the exact role of which has been unclear since its discovery around 70 years ago, probably gives the brain information on whether the ear is functioning normally or not. These new ...

大脑Scans Reveal That Lonely People Process the World in Unique Ways

Loneliness is detrimental to well-being and often accompanied by feelings of not being understood by others. A new study found that the brain responses of lonely people differ from those of other ...

大脑Imaging-Based Biomarker of Depression Identified

Major depressive disorder (MDD) is not only among the most common mental illnesses, affecting over 8% of Americans, but it is also extremely variable from one person to another. Researchers have ...

Dogs and Humans Process Body Postures Similarly in Their Brains

A new study shows that information from body postures plays a similarly important role for dogs as it does for humans. The results offer new insights into how dogs and humans perceive each other and ...

Neural Signature for Borderline Personality Disorder Identified

A new study of a brain region called the rostro-medial prefrontal could potentially advance diagnosis and therapies for Borderline Personality Disorder ...

Running on Fumes? Fruit Flies Stay Sharp by Flipping a Metabolic Switch in the Brain

A new study reveals that the cells in the fruit fly brain possess a remarkable ability to shift their energy production to fats and send signals to the body's other organs, prompting them to ...

Poverty Negatively Impacts Structural Wiring in Children's Brains, Study Indicates

A study reveals that household and community poverty may influence brain health in children. Childhood obesity and lower cognitive function may explain, at least partially, poverty's influence ...

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