Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Get the latest international news and world events from around the world.

Log in for authorized contributors

How the brain can selectively focus attention on one voice among others in a noisy environment

MIT neuroscientists have figured out how the brain is able to focus on a single voice among a cacophony of many voices, shedding light on a longstanding neuroscientific phenomenon known as the “cocktail party problem.”

This attentional focus becomes necessary when you’re in any crowded environment, such as a cocktail party, with many conversations going on at once. Somehow, your brain is able to follow the voice of the person you’re talking to, despite all the other voices that you’re hearing in the background.

Using a computational model of the auditory system, the MIT team found that amplifying the activity of the neural processing units that respond to features of a target voice, such as its pitch, allows that voice to be boosted to the forefront of attention.

Stress rewires brain control networks, boosting pain tolerance in ice test

Stress resilience isn’t a flatline. It’s a flex, according to new research from Florida International University. Marcelo Bigliassi, assistant professor of psychophysiology, and Ph.D. student Dayanne Antonio thrive in creating stressful environments.

They set out to explore how the brain’s internal wiring and a person’s subjective experience of stress interact to determine how they respond to stressful situations. The findings were published in the Journal of Applied Physiology.

Study participants plunged one hand into a bucket of ice-cold water. Frigidly cold water. As the seconds ticked by, the body’s stress systems revved up, and their skin began to sweat.

Enhancer dynamics and cellular architecture in the human spinal cord

Human spinal cord enhancer dynamics and cellular architecture.

The researchers present an innovative framework redefining human spinal cord cellular diversity through epigenetic configuration and spatial organization.

They identify unseen enhancer classes that define both stable cell-type identity and transitions between cells undergoing differentiation.

The authors also identify gene regulatory networks in glial cells that reorganize along the rostrocaudal axis, demonstrating anatomical differences in gene regulation.

The researchers demonstrate spatial organization of cells into distinct cellular networks and address the functional significance of this observation in the context of paracrine signaling. sciencenewshighlights ScienceMission https://sciencemission.com/Enhancer-dynamics

Kandror et al. present an innovative framework redefining human spinal cord cellular diversity through epigenetic configuration and spatial organization. They identify unseen enhancer classes, show cell-type-specific reconfiguration of gene regulatory networks along the rostrocaudal axis, and uncover cellular networks mediated by discrete paracrine signaling, challenging conventional definitions of cellular state.

Continue reading “Enhancer dynamics and cellular architecture in the human spinal cord” | >

Abstract: Tumor-intrinsic chromatin programs enforce immune evasion in glioblastoma:

Rongze Olivia Lu & colleagues provide a Commentary on Xinchun Zhang et al.: https://doi.org/10.1172/JCI195556

Address correspondence to: Rongze Olivia Lu, Helen Diller Comprehensive Cancer Center, University of California, San Francisco, 1,450 3rd St., Helen Diller Cancer Building, San Francisco, California 94,158, USA. Email: [email protected].

Cardiac Fibroblast Activation May Precede Myocardial Tissue Remodeling in Hypertrophic Cardiomyopathy

New HCM research: radionuclide-labeled fibroblast activation protein inhibitor (FAPI) imaging detects cardiac fibroblast activation before CMR-identified myocardial remodeling. Early detection may offer new insights into HCM.

Learn more in JACCIMG.

The Journal of the American College of Cardiology (JACC) stands as a leading global resource for impactful cardiovascular research, delivering essential peer-reviewed articles and crucial clinical practice guidelines. Gain access to authoritative medical content and vital CME resources designed to advance cardiovascular medicine and improve heart patient outcomes.

Inflammation, Limbic White Matter Microstructure, and Clinical Symptoms in Retired American Football Players With Repetitive Head Impacts

Background and ObjectivesThe link between repetitive head impact (RHI) exposure, later-life cognitive decline, and neurobehavioral dysregulation (NBD) is not well understood. Recent work has implicated inflammation and limbic dysfunction as relevant RHI…

/* */