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How early brain activity may shape speech-linked circuits before babies ever speak

Communication begins long before children learn to speak. Researchers at National Yang Ming Chiao Tung University (NYCU) in Taiwan have now uncovered how early brain activity helps build developing communication circuits via regulating FOXP2/Foxp2, a gene linked to human speech and communication disorders.

Published in EMBO Reports, the study presents an integrated framework linking neural activity, vocal circuit development, and activity-dependent regulation of Foxp2 in early life. The researchers studied neonatal mice, which emit ultrasonic vocalizations when separated from their mothers. These vocalizations are widely used to study early social communication and neurodevelopmental disorders.

Using advanced activity tagging, live neural recording, and circuit manipulation techniques, the NYCU team identified a previously underappreciated communication circuit linking the ventromedial prefrontal cortex (vmPFC) and the striatum.

New Brain “Bypass” Technology Could Transform Treatment for Neurological Disorders

A new technology called LinCx allows scientists to create custom electrical connections between neurons with high precision. Researchers say it may help treat disorders caused by damaged brain circuits. Damage to brain circuits plays a major role in many neurological disorders. Researchers at Duk

Behold the neuron, a complicated cell with a simple mission

Neurons, the uber-connected nerve cells that act as a main switchboard for the brain, are central to some incredibly complicated processes. They make it possible to think, walk, speak, and breathe. They even have built-in backup batteries to use in emergencies.

Yet the way individual neurons go about their business is surprisingly simple, according to a new Yale study.

How simple? Most of them operate entirely like tiny on-off switches.

Science beyond the physical

For centuries, we’ve assumed that science has banished the transcendent and established that reality is entirely physical. But critics argue there are signs that a rigorous materialism might be holding science back. Increasingly, “emergence” is used to account for everything from consciousness to spacetime – a convenient placeholder for what materialist science may be unable to explain. Physicists like Heisenberg and Hawking concluded that science gives us models of reality, rather than final descriptions of its true nature, while there are scientists working in everything from biology to computer science who suggest that dualism is a productive metaphysical framework for their research. Materialism may have enabled science to reach beyond the dogmas of religion, but there are now those who are restlessly probing the limits of materialism itself.

How does imagination really work in the brain? New theory upends what we knew

The other 99% is used on the activity the brain generates on its own: neurons (nerve cells) firing and signalling to each other regardless of whether you’re thinking hard, watching television, dreaming, or simply closing your eyes.

Even in the brain areas dedicated to vision, the visuals coming in through your eyes shape the activity of your neurons less than this internal ongoing action.

In a paper just published in Psychological Review, we argue that our imagination sculpts the images we see in our mind’s eye by carving into this background brain activity. In fact, imagination may have more to do with the brain activity it silences than with the activity it creates.

Brain scans reveal what resilience really looks like

The expected explanation was straightforward: resilient people would respond more strongly to rewards, allowing positive outcomes to outweigh the negatives. But the brain scans told a different story.

In ten prefrontal and parietal regions tied to cognitive control, the resilient group showed stronger increases in activity when negative information appeared.

Their brains were not muting losses. They were engaging more circuitry to handle them.

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