A systematic review reveals adolescent cannabis use alters brain structure, elevates addiction risk, and impacts cognitive ...

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

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

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.

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

In a bid to better understand, and potentially treat, a host of conditions that affect early cognition, neurodevelopment, and the brain later in life, investigators at Johns Hopkins Medicine and ...

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

Neurons that fire together, wire together” is not the full story. A novel mechanism explains how the brain can learn across ...

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 ...

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