Summary: Researchers report a surprising similarity between how large language models (LLMs) such as ChatGPT process information and how the brains of people with Wernicke’s aphasia operate. In both cases, output can be fluent yet semantically unreliable, suggesting constrained internal dynamics that distort meaning. Using energy landscape analysis on resting-state brain recordings and internal model … Read more

Summary: A new study from Indiana University shows that acetaminophen (Tylenol, paracetamol) eases pain by lowering levels of the endocannabinoid 2‑arachidonoyl glycerol (2‑AG) rather than increasing it. The researchers report that acetaminophen inhibits the enzyme diacylglycerol lipase α (DAGLα), which produces 2‑AG and helps activate CB1 receptors. This unexpected mechanism challenges long‑standing assumptions about endocannabinoids … Read more

Summary: Mindfulness is widely recognized for its calming effects, and new research suggests that matching specific mindfulness practices to particular forms of anxiety can enhance those benefits. A proposed framework argues that focused attention meditation may be especially helpful for people who struggle with chronic worrying, while open monitoring practices may better serve those who … Read more

Summary: Across very different ecosystems and species, animals from meerkats to coatis and spotted hyenas show a common pattern in how they switch between activities. Using accelerometer tracking and machine learning classification, researchers found that the longer an animal remains in a behavior—resting, foraging, or moving—the less likely it is to switch out of that … Read more

Summary: New research indicates that detailed personality assessments may help tailor treatment for people with bipolar disorder by identifying who is more likely to experience recurrent depression or face difficulties in daily functioning. Analyzing data from more than 2,500 people across two long-term cohorts, researchers identified combinations of personality traits—referred to as personality styles—that either … Read more

Alzheimer’s Proteins Aβ42 and Tau Cause Distinct Whole-Body Changes in Fruit Fly Study Summary: New research using Drosophila (fruit flies) shows that Alzheimer’s-associated proteins affect the entire organism—not just the brain. Scientists built an Alzheimer’s Disease Fly Cell Atlas (AD-FCA) that profiles gene expression across 219 cell types in the heads and bodies of adult … Read more

Summary: Although humans share more than 98% of their DNA with chimpanzees, our species displays far greater cognitive complexity and emotional depth. New research suggests that the key differences may lie not in protein-coding changes but in abrupt shifts in gene regulation that reorganized how genes are turned on and off. Using an innovative analytical … Read more

Summary: Astrocytes, long considered passive support cells, are now shown to play a central role in controlling behavior by modulating neuronal activity through a slower biochemical signaling pathway. In larval zebrafish, researchers discovered that astrocytes respond to norepinephrine by releasing ATP into the extracellular space. That ATP is enzymatically converted into adenosine, a neuromodulator that … Read more

Summary: Frontotemporal dementia (FTD), a leading cause of early-onset dementia, is frequently misdiagnosed because its symptoms overlap with psychiatric and other neurological disorders. In a new NIH-funded study, researchers at the University of California, San Francisco identified distinctive protein changes in cerebrospinal fluid that may serve as the first specific biomarkers for FTD in living … Read more

Summary: A new hypothesis suggests that psychedelics may enhance empathy, insight, and psychological flexibility by transiently shifting brain function toward the right hemisphere. Called HEALS—Hemispheric Annealing and Lateralization Under Psychedelics—this model proposes that psychedelic experiences temporarily reverse the usual left-dominant hierarchy between hemispheres, freeing the right hemisphere’s more holistic, emotionally attuned processing from left-brain constraints. … Read more