Though some say weed can improve mood and energy, there are negative effects on cognitive skills — especially in younger ...

Adolescence is widely thought to be a time when the brain trims away excess neural connections, refining circuits through synaptic pruning. New research now suggests this view may be incomplete.

Researchers find marijuana use in teens tied to slower gains in memory, focus, and thinking skills.

The hippocampus follows a "tabula plena" model, starting with dense, random connections that are pruned into an efficient ...

During brain development, neurons can regulate their movement until they reach their final destination thanks to a "molecular ...

Add Yahoo as a preferred source to see more of our stories on Google. Just as pediatricians use growth charts to monitor a child's height and weight, researchers have now created the first ...

The study identifies critical windows of metal exposure via baby teeth, revealing impacts on brain development and behavior ...

Clinicians use electroencephalography (EEG) to assess brain activity in epilepsy and sleep pathologies, and this powerful ...

To stay in balance, the brain depends on two types of neurons: Excitatory neurons (in white), which increase activity, and inhibitory neurons (in black), which damp down signals. Scientists have now ...