Neuroscience

Repulsion mechanism between neurons governs fly brain structure

The brain's structure has columnar features, which are hypothesized to arise from nerve cells (neurons) stemming from the same parent cell, initially forming radial units. How exactly this process unfolds at the molecular ...

Neuroscience

Newly understood circuits add finesse to nerve signals

(Medical Xpress)—An unusual kind of circuit fine-tunes the brain's control over movement and incoming sensory information, and without relying on conventional nerve pathways, according to a study published this week in ...

HIV & AIDS

HIV lies dormant in brain, increasing risk of dementia, but how?

The HIV virus, which causes AIDS, has long been known to target and disable cells of the immune system, which are responsible for fighting off invading microorganisms and for suppressing malignant cancers. More recently, ...

Neuroscience

Spinal cord neurons that control pain and itch

The spinal cord transmits pain signals to the brain, where they are consciously perceived. But not all the impulses arrive at their destination: Certain neurons act as checkpoints and determine whether a pain signal is relayed ...

page 13 from 25