Intelligence News

April 24, 2024

Top Headlines

Eye-Opener: Pupils Enlarge When People Focus on Tasks

Apr. 22, 2024 — Normally, a person's pupils naturally widen (or dilate) in low-light environments to allow more light into the eye. However, in a new study, researchers reported that a person's pupils also dilate when they are concentrating on tasks. In particular, ...

Metacognitive Abilities Like Reading the Emotions and Attitudes of Others May Be More Influenced by Environment Than Genetics

Apr. 18, 2024 — Twin studies have proven invaluable for teasing out the effects of both genetics and the environment on human biology. Researchers studied pairs of twins to look at how the interplay of genetics and ...

Paper: To Understand Cognition--and Its Dysfunction--Neuroscientists Must Learn Its Rhythms

Apr. 17, 2024 — Thought emerges and is controlled in the brain via the rhythmically and spatially coordinated activity of millions of neurons, scientists argue in a new article. Understanding cognition and its ...

Does Using Your Brain More at Work Help Ward Off Thinking, Memory Problems?

Apr. 17, 2024 — The harder your brain works at your job, the less likely you may be to have memory and thinking problems later in life, according to a new study. This study does not prove that stimulating work prevents mild cognitive impairment. It only shows an ...

Latest Headlines

updated 10:47pm EDT

In the Brain, Bursts of Beta Rhythms Implement Cognitive Control

Apr. 23, 2024 — Bursts of brain rhythms with 'beta' frequencies control where and when neurons in the cortex process sensory information and plan responses. Studying these bursts would improve understanding of ...

Workings of Working Memory Detailed

Apr. 17, 2024 — Investigators have discovered how brain cells responsible for working memory -- the type required to remember a phone number long enough to dial it -- coordinate intentional focus and short-term ...

Can Animals Count?

Apr. 15, 2024 — Researchers have made a groundbreaking discovery regarding number sense in animals by confirming the existence of discrete number sense in rats, offering a crucial animal model for investigating the ...

Physical Activity Reduces Stress-Related Brain Activity to Lower Cardiovascular Disease Risk

Apr. 15, 2024 — Over a ten-year period, biobank participants who met recommended levels of physical activity had a 23% lower risk of cardiovascular disease, and the ...

New Origin of Deep Brain Waves Discovered

Apr. 10, 2024 — Biomedical engineering researchers have uncovered a previously unknown source of two key brain waves crucial for deep sleep: slow waves and sleep spindles. Traditionally believed to originate from ...

Brain Stimulation Treatment May Improve Depression, Anxiety in Older Adults

Apr. 10, 2024 — A noninvasive brain stimulation treatment improved depression and anxiety symptoms among older adults in a new ...

New Technique Sheds Light on Memory and Learning

Apr. 9, 2024 — The findings may also have implications for learning and memory disorders, including Fragile X ...

Cognitive Decline May Be Detected Using Network Analysis, According to Concordia Researchers

Apr. 9, 2024 — Researchers use network analysis to study whether it can reveal the subtle changes associated with subjective cognitive decline that cannot otherwise ...

Active Workstations May Improve Cognitive Performance

Apr. 4, 2024 — A recent study suggests that active workstations incorporating a walking pad, bike, stepper and/or standing desk are successful strategies for reducing sedentary time and improving mental cognition ...

Researchers Map How the Brain Regulates Emotions

Apr. 3, 2024 — A new study is among the first of its kind to separate activity relating to emotion generation from emotion regulation in the human brain. The findings provide new insights that could help inform ...

Blended Antioxidant Supplement Improves Cognition and Memory in Aged Mice

Apr. 2, 2024 — Cell damage from oxidative stress is a major underlying cause of age-related cognitive and muscle strength decline. Antioxidants can reduce oxidative stress and prevent age-related health decline. A ...

Familial Alzheimer's Disease Transferred Via Bone Marrow Transplant in Mice

Mar. 28, 2024 — Familial Alzheimer's disease can be transferred via bone marrow transplant, researchers show. When the team transplanted bone marrow stem cells from mice carrying a hereditary version of ...

Researchers Introduce Enhanced Brain Signal Analysis Technique

Mar. 27, 2024 — Researchers have introduced a new, refined method for analyzing brain signals, enhancing our understanding of brain functionality. This research has the potential to improve treatments for ...

Could AI Play a Role in Locating Damage to the Brain After Stroke?

Mar. 27, 2024 — Artificial intelligence (AI) may serve as a future tool for neurologists to help locate where in the brain a stroke occurred. In a new study, AI processed text from health histories and neurologic ...

Not Unique to Humans but Uniquely Human: Researchers Identify Factor Involved in Brain Expansion in Humans

Mar. 27, 2024 — What makes us human? According to neurobiologists it is our neocortex. This outer layer of the brain is rich in neurons and lets us do abstract thinking, create art, and speak complex languages. An ...

A Decade of Aphantasia Research: What We've Learned About People Who Can't Visualize

Mar. 27, 2024 — People who can't visualize an image in their mind's eye are less likely to remember the details of important past personal events or to recognize faces, according to a review of nearly ten ...

Memory Self-Test Via Smartphone Can Identify Early Signs of Alzheimer's Disease

Mar. 27, 2024 — Dedicated memory tests on smartphones enable the detection of 'mild cognitive impairment', a condition that may indicate Alzheimer's disease, with high ...

Study Finds High Prevalence of Hidden Brain Changes in People With Heart Disease

Mar. 26, 2024 — A new analysis involving over 13,000 people has found changes to blood vessels in the brain that can increase the risk of stroke and dementia are common in people with a range of heart conditions, ...

New Treatment Target Identified for Alzheimer's Disease

Mar. 26, 2024 — Researchers have identified a new potential target for the treatment of Alzheimer's disease -- PDE4B. The researchers observed that AD mice showed memory deficits in maze tests, but memory was ...

Large-Scale Animal Study Links Brain pH Changes to Wide-Ranging Cognitive Issues

Mar. 26, 2024 — The International Brain pH Project Consortium unveils groundbreaking findings in a large-scale animal model study, indicating altered brain pH and lactate levels as a transdiagnostic endophenotype in ...

Human Brains Are Getting Larger: That May Be Good News for Dementia Risk

Mar. 25, 2024 — A new study has found human brains are getting bigger. The increased size may lead to a brain reserve, potentially reducing the risk of ...

Early Intervention After the First Seizure May Prevent Long-Term Epilepsy and Associated Cognitive Deficits

Mar. 22, 2024 — Only a very small percentage of neurons show changes after an epileptic seizure in mice, but these alterations can be permanent and trigger future seizures. An experimental treatment may prevent ...

The Power of Neighbors: Neighboring Synapses Shape Learning and Memory

Mar. 21, 2024 — A researcher has developed a new model that provides a holistic view on how our brain manages to learn quickly and forms stable, long-lasting memories. Their study sheds light on the crucial role of ...

Research Offers Hope for Preventing Post-COVID 'Brain Fog' by Targeting Brain's Blood Vessels

Mar. 21, 2024 — Researchers have identified a mechanism that causes neurological problems in mice infected with SARS-CoV-2, the virus behind COVID-19. The researchers also found a treatment that helped prevent these ...

Is the Secret to Anxiety in Young Women Hidden in Our Brain Chemistry?

Mar. 19, 2024 — The development of anxiety in girls and young women may stem from an imbalance between two crucial brain chemicals, gamma-aminobutyric acid (GABA) and glutamate, according to a new study. This ...

Biomarkers of the Middle-Aged Brain Predict Cognitive Health in Old Age

Mar. 19, 2024 — The middle-aged brain could provide a window into future cognitive health. A team reviewed evidence from human and animal studies suggesting that middle age -- commonly considered as the period ...

Researchers Find Unanticipated Complexity in Aging Brain's Memory Decline

Mar. 18, 2024 — Researchers have discovered that the causes of age-related memory decline are more complicated than previously believed. Their study found that neural dedifferentiation is driven by different ...

Fatty Food Before Surgery May Impair Memory in Old, Young Adults

Mar. 15, 2024 — Eating fatty food in the days leading up to surgery may prompt a heightened inflammatory response in the brain that interferes for weeks with memory-related cognitive function in older adults -- and, ...

New Study Reveals Breakthrough in Understanding Brain Stimulation Therapies

Mar. 15, 2024 — Researchers show that non-invasive brain stimulation can change a specific brain mechanism that is directly related to human ...

Mar. 13, 2024 — U.S. veterans of the wars in Afghanistan and Iraq who suffered mild traumatic brain injury from exposure to explosive blasts were found to have changes in cerebrospinal fluid proteins that are ...