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Chandelier cells unveil human cognition

Researchers discover complex events initiated by individual spikes in the human cerebral cortex, triggered by specific chandelier cells. The study suggests that humans possess different types of cells contributing to higher cognition.

'Memory molecule' stores memories in neocortex

Researchers found that PKMzeta is necessary for storing long-term memories in the neocortex, a part of the brain responsible for higher-level cognitive functions. Persistent phosphorylation by PKMzeta is crucial for storing these memories.

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Research finds music training 'tunes' human auditory system

Research finds that music training fine-tunes brainstem's sensitivity to speech sounds, benefiting learning activities, and potentially improving sound encoding skills. The study suggests a dynamic relationship between the brainstem and neocortex, allowing basic sensory circuitry to be malleable.

Neuroscientist records surprising brain 'dialogue' during sleep

Researchers recorded activity in two brain regions during deep sleep, finding a complex 'dialogue' between the hippocampus and neocortex. The findings suggest that the neocortex drives communication during sleep, contradicting previous theories of hippocampal control.

New method shows that neocortical nerve cells are not renewed

Research at Karolinska Institutet reveals that human neocortical nerve cells do not regenerate, contradicting previous studies on apes and rodents. The new method uses atmospheric C14 levels to pinpoint cell birth times, showing no cell division took place in the neocortex from infancy to adulthood.

Early experience may shape our sensory perceptions

Researchers studied individual neurons in cats' neocortex to understand multisensory integration, finding that many neurons can respond to multiple senses. The findings suggest that early sensory experiences play a significant role in shaping brain circuitry, with potential implications for treating disorders such as autism and dyslexia.

Study puts a damper on extent of new brain cell growth

A study published in Science found no new neurons in the neocortex of adult monkeys, contradicting previous reports. Researchers used advanced imaging techniques to analyze thousands of cells and conclude that mechanisms other than neurogenesis may be needed to understand brain function.

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