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Mapping a new brain network for naming

Researchers identified two brain networks involved in word retrieval — the cognitive process of accessing words we need to speak. A semantic network processes meaning in middle/inferior frontal gyri, while an articulatory network in inferior frontal/p…

Hormone cycles shape the structure and function of key memory regions in the brain

Hormone levels fluctuate like the tides, ebbing and flowing according to carefully orchestrated cycles. These hormones not only influence the body, but can cross into the brain and shape the behavior of our neurons and cognitive processes. Recently, re…

Different anesthetics, same result: Unconsciousness by shifting brainwave phase

A new study finds that an easily measurable brain wave shift of phase may be a universal marker of unconsciousness under general anesthesia.

ChatGPT helps pinpoint precise locations of seizures in the brain, aiding neurosurgeons

ChatGPT responses matched or outperformed epileptologists’ responses related to the regions where epileptogenic zones are commonly located. Yet epileptologists provided more accurate responses for the regions rarely affected.

The how and why of the brain’s division across hemispheres

Why does the brain split visual spatial perception between its hemispheres? A new review by neuroscientists examines the advantages and trade-offs, and how the brain ultimately makes vision feel seamless.

Lab-on-a-chip devices take public health into home

Engineers created a new point-of-care test that measures cortisol in saliva to help doctors diagnose depression and anxiety.

Important step towards improving diagnosis and treatment of brain metastases

Brain metastases often occur as a result of advanced cancer and, despite medical innovations, are still associated with a poor prognosis. Now, an international expert committee has taken an important step towards improving diagnostics and therapy monit…

Sleep apnea during REM sleep linked to memory-related brain changes

Obstructive sleep apnea, a condition that causes lower oxygen levels during sleep, is linked to degeneration of brain regions associated with memory through damage to the brain’s small blood vessels, according to a new study. The study found the brain …

Discovery of dopamine receptors in a previously overlooked part of the brain sheds light on the complex circuitry for anxiety and depression

Researchers have discovered distinct roles for two dopamine receptors located on nerve cells within the portion of the brain that controls approach vs. avoidance behavior.

A pipette that can activate individual neurons

Researchers have developed a new type of pipette that can deliver ions to individual neurons without affecting the sensitive extracellular milieu. Controlling the concentration of different ions can provide important insights into how individual brain …