After treatment, the mice’s memories were essentially shunted back into a younger state. The researchers found that reprogrammed engrams displayed molecular behavior of more youthful cells. Using a ...

Age-related memory decline and neurodegenerative diseases like Alzheimer's are often thought of as irreversible. But the brain is not static; neurons continually adjust the strength of their ...

Memories are thought to be stored in sparse groups of neurons called engrams. These are the cells that switch on during learning and can later switch on again during recall. In physiological aging and ...

Parvalbumin (PV) interneurons act as the brain’s rhythm keepers. By regulating local circuit activity and maintaining excitation–inhibition balance, they help stabilize cortical network function. When ...

To think, feel, talk and move, neurons send messages through electrical signals in the brain and spinal cord. This intricate communication network is built of billions of neurons connected by synapses ...

The human brain has 86 billion neurons connected by roughly 100 trillion synapses, making it one of the most complex objects in the known universe. Each year neuroscientists make fascinating, ...

A brain-imaging study of people with amputated arms has upended a long-standing belief: that the brain’s map of the body reorganizes itself to compensate for missing body parts. Previous research had ...